Heat is often created as a byproduct of industrial processes where flowing streams of liquids, solids, or gasses containing heat must be exhausted into the environment or otherwise removed in some way in an effort to regulate the operating temperatures of the industrial process equipment. The industrial process oftentimes uses heat exchangers to capture the heat and recycle it back into the process via other process streams. Other times it is not feasible to capture and recycle the heat because it is either too hot or it may contain insufficient mass flow. This heat is referred to as “waste” heat and is typically discharged directly into the environment or indirectly through a cooling medium, such as water or air.
Waste heat can be converted into useful work by a variety of turbine generator systems that employ well-known thermodynamic cycles, such as the Rankine cycle. These thermodynamic methods are typically steam-based processes where the waste heat is recovered and used to generate steam from water in a boiler in order to drive a corresponding turbine. Organic Rankine cycles replace the water with a lower boiling-point working fluid, such as a light hydrocarbon like propane or butane, or a HCFC (e.g., R245fa) fluid. More recently, however, and in view of issues such as thermal instability, toxicity, or flammability of the lower boiling-point working fluids, some thermodynamic cycles have been modified to circulate more greenhouse-friendly and/or neutral working fluids, such as carbon dioxide (CO2) or ammonia.
The efficiency of a thermodynamic cycle is largely dependent on the pressure ratio achieved across the system expander (or turbine). As this pressure ratio increases, so does the efficiency of the cycle. One way to alter the pressure ratio is to manipulate the temperature of the working fluid in the thermodynamic cycle, especially at the suction inlet of the cycle pump (or compressor). Heat exchangers, such as condensers, are typically used for this purpose, but conventional condensers are directly limited by the temperature of the cooling medium being circulated therein, which is frequently ambient air or water.
On hot days, when the temperature of the cooling medium is heightened, condensing the working fluid with a conventional condenser can be problematic. This is especially challenging in thermodynamic cycles having a working fluid with a critical temperature that is lower than the ambient temperature. As a result, the condenser can no longer condense the working fluid, and cycle efficiency inevitably suffers.
Accordingly, there exists a need in the art for a thermodynamic cycle that can efficiently and effectively operate with a working fluid that does not condense on hot days, thereby increasing thermodynamic cycle power output derived from not only waste heat but also from a wide range of other thermal sources.
Embodiments of the disclosure may provide a working fluid circuit for converting thermal energy into mechanical energy. The working fluid circuit may include a pump configured to circulate a working fluid through the working fluid circuit. A heat exchanger may be in fluid communication with the pump and in thermal communication with a heat source, and the heat exchanger may be configured to transfer thermal energy from the heat source to the working fluid. A power turbine may be fluidly coupled to the heat exchanger and configured to expand the working fluid discharged from the heat exchanger to generate the mechanical energy. Two or more intercooling components may be in fluid communication with the power turbine and configured to cool and condense the working fluid using a cooling medium derived at or near ambient temperature. One or more compressors may be fluidly coupled to the two or more intercooling components such that at least one of the one or more compressors is interposed between adjacent intercooling components.
Embodiments of the disclosure may also provide a method for regulating a pressure and a temperature of a working fluid in a working fluid circuit. The method may include circulating the working fluid through the working fluid circuit with a pump. The working fluid may be heated in a heat exchanger arranged in the working fluid circuit in fluid communication with the pump, and the heat exchanger may be in thermal communication with a heat source. The working fluid discharged from the heat exchanger may be expanded in a power turbine fluidly coupled to the heat exchanger. The working fluid discharged from the power turbine may be cooled and condensed in at least two intercooling components in fluid communication with the power turbine. The at least two intercooling components may use a cooling medium at an ambient temperature to cool the working fluid, and the ambient temperature may be above a critical temperature of the working fluid. The working fluid discharged from the two or more intercooling components may be compressed with one or more compressors fluidly coupled to the two or more intercooling components such that at least one of the one or more compressors is interposed between fluidly adjacent intercooling components.
Embodiments of the disclosure may further provide a working fluid circuit. The working fluid circuit may include a pump configured to circulate a carbon dioxide working fluid through the working fluid circuit. A waste heat exchanger may be in fluid communication with the pump and in thermal communication with a waste heat source, and the heat exchanger being configured to transfer thermal energy from the waste heat source to the carbon dioxide working fluid. A power turbine may be fluidly coupled to the heat exchanger and configured to expand the carbon dioxide working fluid discharged from the heat exchanger. A precooler may be fluidly coupled to the power turbine and configured to remove thermal energy from the carbon dioxide working fluid. A first compressor may be fluidly coupled to the precooler and configured to increase a pressure of the carbon dioxide working fluid. An intercooler may be fluidly coupled to the first compressor and configured to remove additional thermal energy from the carbon dioxide working fluid, and the first compressor may be fluidly interposing the precooler and the intercooler.
The present disclosure is best understood from the following detailed description when read with the accompanying Figures. It is emphasized that, in accordance with the standard practice in the industry, various features are not drawn to scale. In fact, the dimensions of the various features may be arbitrarily increased or reduced for clarity of discussion.
It is to be understood that the following disclosure describes several exemplary embodiments for implementing different features, structures, or functions of the invention. Exemplary embodiments of components, arrangements, and configurations are described below to simplify the present disclosure; however, these exemplary embodiments are provided merely as examples and are not intended to limit the scope of the invention. Additionally, the present disclosure may repeat reference numerals and/or letters in the various exemplary embodiments and across the Figures provided herein. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various exemplary embodiments and/or configurations discussed in the various Figures. Moreover, the formation of a first feature over or on a second feature in the description that follows may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features may be formed interposing the first and second features, such that the first and second features may not be in direct contact. Finally, the exemplary embodiments presented below may be combined in any combination of ways, i.e., any element from one exemplary embodiment may be used in any other exemplary embodiment, without departing from the scope of the disclosure.
Additionally, certain terms are used throughout the following description and claims to refer to particular components. As one skilled in the art will appreciate, various entities may refer to the same component by different names, and as such, the naming convention for the elements described herein is not intended to limit the scope of the invention, unless otherwise specifically defined herein. Further, the naming convention used herein is not intended to distinguish between components that differ in name but not function. Additionally, in the following discussion and in the claims, the terms “including” and “comprising” are used in an open-ended fashion, and thus should be interpreted to mean “including, but not limited to.” All numerical values in this disclosure may be exact or approximate values unless otherwise specifically stated. Accordingly, various embodiments of the disclosure may deviate from the numbers, values, and ranges disclosed herein without departing from the intended scope. Furthermore, as it is used in the claims or specification, the term “or” is intended to encompass both exclusive and inclusive cases, i.e., “A or B” is intended to be synonymous with “at least one of A and B,” unless otherwise expressly specified herein.
Although a simple thermodynamic cycle 100 is illustrated and discussed herein, those skilled in the art will recognize that other classes of thermodynamic cycles may equally be implemented into the present disclosure. For example, cascading and/or parallel thermodynamic cycles may be used, without departing from the scope of the disclosure. Various examples of cascading and parallel thermodynamic cycles that may apply to the present disclosure are described in co-pending PCT Pat. App. No. US2011/29486 entitled “Heat Engines with Cascade Cycles,” and co-pending U.S. patent application Ser. No. 13/212,631 entitled “Parallel Cycle Heat Engines,” the contents of which are each hereby incorporated by reference.
In one or more embodiments, the working fluid used in the thermodynamic cycle 100 is carbon dioxide (CO2). It should be noted that use of the term CO2 is not intended to be limited to CO2 of any particular type, purity, or grade. For example, industrial grade CO2 may be used without departing from the scope of the disclosure. In other embodiments, the working fluid may be a binary, ternary, or other working fluid blend. In other embodiments, the working fluid may be a combination of CO2 and one or more other miscible fluids. In yet other embodiments, the working fluid may be a combination of CO2 and propane, or CO2 and ammonia, without departing from the scope of the disclosure.
Moreover, use of the term “working fluid” is not intended to limit the state or phase of the working fluid. For instance, the working fluid may be in a fluid phase, a gas phase, a supercritical state, a subcritical state or any other phase or state at any one or more points within the thermodynamic cycle 100. In one or more embodiments, the working fluid is in a supercritical state over certain portions of the thermodynamic cycle 100 (i.e., a high pressure side), and in a subcritical state at other portions of the thermodynamic cycle 100 (i.e., a low pressure side). In other embodiments, the entire thermodynamic cycle 100 may be operated such that the working fluid is maintained in either a supercritical or subcritical state throughout the entire working fluid circuit 102.
The thermodynamic cycle 100 may include a main pump 104 that pressurizes and circulates the working fluid throughout the working fluid circuit 102. The pump 104 can also be or include a compressor. The pump 104 drives the working fluid toward a heat exchanger 106 that is in thermal communication with a heat source Qin. Through direct or indirect interaction with the heat source Qin, the heat exchanger 106 increases the temperature of the working fluid flowing therethrough.
The heat source Qin derives thermal energy from a variety of high temperature sources. For example, the heat source Qin may be a waste heat stream such as, but not limited to, gas turbine exhaust, process stream exhaust, or other combustion product exhaust streams, such as furnace or boiler exhaust streams. The thermodynamic cycle 100 may be configured to transform this waste heat into electricity for applications ranging from bottom cycling in gas turbines, stationary diesel engine gensets, industrial waste heat recovery (e.g., in refineries and compression stations), and hybrid alternatives to the internal combustion engine. In other embodiments, the heat source Qin may derive thermal energy from renewable sources of thermal energy such as, but not limited to, solar thermal and geothermal sources.
While the heat source Qin may be a fluid stream of the high temperature source itself, in other embodiments the heat source Qin may be a thermal fluid that is in contact with the high temperature source. The thermal fluid may deliver the thermal energy to the waste heat exchanger 106 to transfer the energy to the working fluid in the circuit 100.
A power turbine 108 is arranged downstream from the heat exchanger 106 and receives and expands the heated working fluid discharged from the heat exchanger 106. The power turbine 108 may be any type of expansion device, such as an expander or a turbine, and may be operatively coupled to an alternator or generator 110, or some other load receiving device configured to receive shaft work. The generator 110 converts the mechanical work provided by the power turbine 108 into usable electrical power.
The power turbine 108 discharges the working fluid toward a recuperator 112 fluidly coupled downstream thereof. The recuperator 112 transfers residual thermal energy in the working fluid to the working fluid initially discharged from the pump 104. Consequently, the temperature of the working fluid discharged from the power turbine 108 is decreased in the recuperator 112 and the temperature of the working fluid discharged from the pump 104 is simultaneously increased.
The pump 104 may be powered by a motor 114 or similar driver device. In other embodiments, the pump 104 may be operatively coupled to the power turbine 108 or some other expansion device in order to drive the pump 104. Embodiments where the pump 104 is driven by the turbine 108 or another drive turbine (not shown) are described in co-pending U.S. patent application Ser. No. 13/205,082 entitled “Driven Starter Pump and Start Sequence,” the contents of which are hereby incorporated by reference to the extent consistent with this disclosure.
A condenser 116 is fluidly coupled to the recuperator 112 and configured to condense the working fluid by further reducing its temperature before reintroducing the liquid or substantially-liquid working fluid to the pump 104. The cooling potential of the condenser 116 is directly dependent on the temperature of its cooling medium, which is usually ambient air or water circulated therein. Depending on the resulting temperature and pressure at the suction inlet of the pump 104, the working fluid may be either subcritical or supercritical at this point.
Referring to
Thermal energy is initially and internally introduced to the working fluid via the recuperator 112, which moves the working fluid from point 2 to point 3 at a constant pressure. Additional thermal energy is externally added to the working fluid via the heat exchanger 106, which moves the working fluid from point 3 to point 4. As thermal energy is introduced to the working fluid, both the temperature and enthalpy of the working fluid increase.
At point 4, the working fluid is at or adjacent the inlet to the power turbine 108. As the working fluid is expanded across the power turbine 108 to point 5, its temperature and enthalpy is reduced representing the work output derived from the expansion process. Thermal energy is subsequently removed from the working fluid in the recuperator 112, thereby moving the working fluid from point 5 to point 6. Point 6 is indicative of the working fluid being downstream from the recuperator 112 and/or near the inlet to the condenser 116. Additional thermal energy is removed from the working fluid in the condenser 116 and thereby moves from point 6 back to point 1 in a fluid or substantially-fluid state.
The work output for the cycle 100 is directly related to the pressure ratio achievable across the power turbine 108 and the amount of enthalpy loss realized as the working fluid is expanded from point 4 to point 5. As illustrated, a first enthalpy loss H1 is realized as the working fluid is expanded from point 4 to point 5, and represents the work output for the cycle 100 using CO2 as the working fluid on a standard temperature day.
As will be appreciated, each process (i.e., 1-2, 2-3, 3-4, 4-5, 5-6, and 6-1) need not occur exactly as shown on the exemplary diagram 200, and instead each step of the cycle 100 could be achieved in a variety of ways. For example, those skilled in the art will recognize that it is possible to achieve a variety of different coordinates on the diagram 200 without departing from the scope of the disclosure. Similarly, each point on the diagram 200 may vary dynamically over time as variables within, and external to, the cycle 100 change, such as ambient temperature, heat source Qin temperature, amount of working fluid in the system, combinations thereof, etc. In one embodiment, the working fluid may transition from a supercritical state to a subcritical state (i.e., a transcritical cycle) between points 4 and 5. In other embodiments, however, the pressures at points 4 and 5 may be selected or otherwise manipulated such that the working fluid remains in a supercritical state throughout the entire cycle 100.
The efficiency of the thermodynamic cycle 100 is dependent at least in part on the pressure ratio achieved across the power turbine 108; the higher the pressure ratio, the higher the efficiency of the cycle 100. This pressure ratio can be maximized by manipulating the temperature of the working fluid in the working fluid circuit 102, especially at the suction inlet of the pump 104 (i.e., point 1) which is primarily cooled using the condenser 116.
On hot days, however, the cooling potential of the condenser 116 is lessened since the cooling medium (e.g., ambient air or water) circulates at a higher temperature and is therefore unable to condense or otherwise cool the working fluid as efficiently as at cooler ambient temperatures. As used herein, “hot” refers to ambient temperatures that are close to (i.e., within 5° C.) or higher than the critical temperature of the working fluid. For example, the critical temperature for CO2 is approximately 31° C., and on a hot day the cooling medium can be circulated in the condenser 116 at temperatures greater than 31° C.
In order to anticipate or otherwise mitigate the adverse effects of hot day temperatures,
Specifically, the working fluid circuit 302 includes a precooler 304, an intercooler 306, and a cooler (or condenser) 308, collectively, the intercooling components 304, 306, 308. The intercooling components 304, 306, 308 are configured to cool the working fluid stagewise instead of in one step. In other words, as the working fluid successively passes through each intercooling component 304, 306, 308, the temperature of the working fluid is progressively decreased.
The cooling medium used in each intercooling component 304, 306, 308 may be air or water at or near (i.e., +/−5° C.) ambient temperature. The cooling medium for each intercooling component 304, 306, 308 may originate from the same source, or the cooling medium may originate from different sources or at different temperatures in order to optimize the power output from the circuit 302. In embodiments where ambient water is the cooling medium, one or more of the intercooling components 304, 306, 308 may be printed circuit heat exchangers, shell and tube heat exchangers, plate and frame heat exchangers, brazed plate heat exchangers, combinations thereof, or the like. In embodiments where ambient air is the cooling medium, one or more of the intercooling components 304, 306, 308 may be direct air-to-working fluid heat exchangers, such as fin and tube heat exchangers or the like.
The working fluid circuit 302 also includes a first compressor 310 and a second compressor 312 in fluid communication with the intercooling components 304, 306, 308. The first compressor 310 interposes the precooler 304 and the intercooler 306, and the second compressor interposes the intercooler 306 and the cooler 308. The working fluid passing through each compressor 310, 312 may be in a substantially gaseous or supercritical phase.
The compressors 310, 312 may be independently driven using one or more external drivers (not shown), or may be operatively coupled to the motor 114 via a common shaft 314. In at least one embodiment, one or both of the compressors 310, 312 is directly driven by a drive turbine (not shown), or any of the turbines (expanders) in the fluid circuit 302. The compressors 310, 312 may be centrifugal compressors, axial compressors, or the like.
Although two compressors 310, 312 and three intercooling components 304, 306, 308 are illustrated and described herein, those skilled in the art will readily recognize that any number of compression stages with intercoolers can be implemented, without departing from the scope of the disclosure. For example, embodiments contemplated herein include having only the precooler 304 and intercooler 306 interposed by the first compressor 310, where the intercooler 306 is fluidly coupled to the pump 104 for recirculation. Other embodiments may include more than one compressor interposing fluidly adjacent intercooling components 304, 306 or 306, 308.
Referring to
The various points depicted in the diagram 400 (1-10) generally correspond to the similarly-numbered locations in the working fluid circuit 302 as indicated in
Additional thermal energy is then removed from the working fluid in the intercooler 306, thereby decreasing the enthalpy of the working fluid again at a substantially constant pressure and moving the working fluid from point 8 to point 9. Point 9 is indicative of at or adjacent the inlet to the second compressor 312, which increases the pressure and temperature of the working fluid as it moves from point 9 to point 10. Additional thermal energy is removed from the working fluid in the cooler (condenser) 308, thereby further decreasing the enthalpy of the working fluid at a substantially constant pressure and moving the working fluid from point 10 back to point 1 in a fluid or substantially-fluid state.
As can be seen in the diagram 400, point 1 in the second loop 404 is substantially adjacent corresponding point 1 for the first loop 402. Accordingly, the process undertaken in the second loop 404, which represents the gas-phase compression with intercooling stages, results in substantially the same start point as the process undertaken in the first loop 402, which represents using the condenser 116 described with reference to
For instance, the first loop 402 realizes a first enthalpy loss H1 as the working fluid is expanded, and the second loop 404 realizes a second, larger enthalpy loss H2 as the working fluid is expanded across a greater differential. Although the second loop 404 requires more compression steps than the first loop 402 (which only requires one compression step at the pump 104) to return to point 1, the compression ratio of the second loop 404, as measured from point 4 to point 5, is much larger than the compression ratio of the first loop 402. Consequently, the work output of the second loop 404 is much larger than the work output of the first loop 402, and makes up for the multiple compression stages and otherwise surpasses the net work output of the first loop 402 on hot days. In other words, while increasing the pressure ratio between points 4 and 5 requires additional compression work, it simultaneously supplies a greater work output than what would otherwise be achievable using the single compression method represented by the first loop 402.
Referring now to
The method 500 may also include cooling and condensing the working fluid discharged from the power turbine in at least two intercooling components, as at 508. The intercooling components may be in fluid communication with the power turbine and cool the working fluid using a cooling medium at ambient temperature. In one embodiment, the ambient temperature is above the critical temperature of the working fluid. The working fluid is compressed following the intercooling components using one or more compressors, as at 510. At least one of the one or more compressors is interposed between fluidly adjacent intercooling components.
The foregoing has outlined features of several embodiments so that those skilled in the art may better understand the present disclosure. Those skilled in the art should appreciate that they may readily use the present disclosure as a basis for designing or modifying other processes and structures for carrying out the same purposes and/or achieving the same advantages of the embodiments introduced herein. Those skilled in the art should also realize that such equivalent constructions do not depart from the spirit and scope of the present disclosure, and that they may make various changes, substitutions and alterations herein without departing from the spirit and scope of the present disclosure.
Number | Name | Date | Kind |
---|---|---|---|
2575478 | Wilson | Nov 1951 | A |
2634375 | Guimbal | Apr 1953 | A |
2691280 | Albert | Oct 1954 | A |
3095274 | Crawford | Jun 1963 | A |
3105748 | Stahl | Oct 1963 | A |
3237403 | Feher | Mar 1966 | A |
3277955 | Heller | Oct 1966 | A |
3401277 | Larson | Sep 1968 | A |
3622767 | Koepcke | Nov 1971 | A |
3736745 | Karig | Jun 1973 | A |
3772879 | Engdahl | Nov 1973 | A |
3791137 | Jubb | Feb 1974 | A |
3939328 | Davis | Feb 1976 | A |
3971211 | Wethe | Jul 1976 | A |
3982379 | Gilli | Sep 1976 | A |
3998058 | Park | Dec 1976 | A |
4009575 | Hartman, Jr. | Mar 1977 | A |
4029255 | Heiser | Jun 1977 | A |
4030312 | Wallin | Jun 1977 | A |
4049407 | Bottum | Sep 1977 | A |
4070870 | Bahel | Jan 1978 | A |
4099381 | Rappoport | Jul 1978 | A |
4119140 | Cates | Oct 1978 | A |
4152901 | Munters | May 1979 | A |
4164848 | Gilli | Aug 1979 | A |
4164849 | Mangus | Aug 1979 | A |
4182960 | Reuyl | Jan 1980 | A |
4183220 | Shaw | Jan 1980 | A |
4198827 | Terry et al. | Apr 1980 | A |
4208882 | Lopes | Jun 1980 | A |
4221185 | Scholes | Sep 1980 | A |
4233085 | Roderick | Nov 1980 | A |
4248049 | Briley | Feb 1981 | A |
4257232 | Bell | Mar 1981 | A |
4287430 | Guido | Sep 1981 | A |
4336692 | Ecker | Jun 1982 | A |
4347711 | Noe | Sep 1982 | A |
4347714 | Kinsell | Sep 1982 | A |
4372125 | Dickenson | Feb 1983 | A |
4384568 | Palmatier | May 1983 | A |
4391101 | Labbe | Jul 1983 | A |
4420947 | Yoshino | Dec 1983 | A |
4428190 | Bronicki | Jan 1984 | A |
4433554 | Rojey | Feb 1984 | A |
4439687 | Wood | Mar 1984 | A |
4439994 | Briley | Apr 1984 | A |
4448033 | Briccetti | May 1984 | A |
4450363 | Russell | May 1984 | A |
4455836 | Binstock | Jun 1984 | A |
4467609 | Loomis | Aug 1984 | A |
4467621 | O'Brien | Aug 1984 | A |
4475353 | Lazare | Oct 1984 | A |
4489562 | Snyder | Dec 1984 | A |
4489563 | Kalina | Dec 1984 | A |
4498289 | Osgerby | Feb 1985 | A |
4516403 | Tanaka | May 1985 | A |
4549401 | Spliethoff | Oct 1985 | A |
4555905 | Endou | Dec 1985 | A |
4558228 | Larjola | Dec 1985 | A |
4573321 | Knaebel | Mar 1986 | A |
4578953 | Krieger | Apr 1986 | A |
4589255 | Martens | May 1986 | A |
4636578 | Feinberg | Jan 1987 | A |
4674297 | Vobach | Jun 1987 | A |
4694189 | Haraguchi | Sep 1987 | A |
4700543 | Krieger | Oct 1987 | A |
4756162 | Dayan | Jul 1988 | A |
4765143 | Crawford | Aug 1988 | A |
4773212 | Griffin | Sep 1988 | A |
4798056 | Franklin | Jan 1989 | A |
4813242 | Wicks | Mar 1989 | A |
4821514 | Schmidt | Apr 1989 | A |
4986071 | Voss | Jan 1991 | A |
4993483 | Harris | Feb 1991 | A |
5000003 | Wicks | Mar 1991 | A |
5050375 | Dickinson | Sep 1991 | A |
5098194 | Kuo | Mar 1992 | A |
5164020 | Wagner | Nov 1992 | A |
5176321 | Doherty | Jan 1993 | A |
5203159 | Koizumi et al. | Apr 1993 | A |
5228310 | Vandenberg | Jul 1993 | A |
5291960 | Brandenburg | Mar 1994 | A |
5335510 | Rockenfeller | Aug 1994 | A |
5360057 | Rockenfeller | Nov 1994 | A |
5392606 | Labinov | Feb 1995 | A |
5440882 | Kalina | Aug 1995 | A |
5444972 | Moore | Aug 1995 | A |
5488828 | Brossard | Feb 1996 | A |
5490386 | Keller | Feb 1996 | A |
5503222 | Dunne | Apr 1996 | A |
5531073 | Bronicki | Jul 1996 | A |
5538564 | Kaschmitter | Jul 1996 | A |
5542203 | Luoma | Aug 1996 | A |
5544479 | Yan et al. | Aug 1996 | A |
5570578 | Saujet | Nov 1996 | A |
5588298 | Kalina | Dec 1996 | A |
5600967 | Meckler | Feb 1997 | A |
5647221 | Garris, Jr. | Jul 1997 | A |
5649426 | Kalina | Jul 1997 | A |
5676382 | Dahlheimer | Oct 1997 | A |
5680753 | Hollinger | Oct 1997 | A |
5738164 | Hildebrand | Apr 1998 | A |
5754613 | Hashiguchi | May 1998 | A |
5771700 | Cochran | Jun 1998 | A |
5789822 | Calistrat | Aug 1998 | A |
5799490 | Bronicki et al. | Sep 1998 | A |
5813215 | Weisser | Sep 1998 | A |
5833876 | Schnur | Nov 1998 | A |
5873260 | Linhardt | Feb 1999 | A |
5874039 | Edelson | Feb 1999 | A |
5894836 | Wu | Apr 1999 | A |
5899067 | Hageman | May 1999 | A |
5903060 | Norton | May 1999 | A |
5918460 | Connell | Jul 1999 | A |
5941238 | Tracy | Aug 1999 | A |
5943869 | Cheng | Aug 1999 | A |
5946931 | Lomax | Sep 1999 | A |
5973050 | Johnson | Oct 1999 | A |
6037683 | Lulay et al. | Mar 2000 | A |
6041604 | Nicodemus | Mar 2000 | A |
6058930 | Shingleton | May 2000 | A |
6062815 | Holt | May 2000 | A |
6065280 | Ranasinghe | May 2000 | A |
6066797 | Toyomura | May 2000 | A |
6070405 | Jerye | Jun 2000 | A |
6082110 | Rosenblatt | Jul 2000 | A |
6105368 | Hansen | Aug 2000 | A |
6112547 | Spauschus | Sep 2000 | A |
6158237 | Riffat | Dec 2000 | A |
6164655 | Bothien | Dec 2000 | A |
6202782 | Hatanaka | Mar 2001 | B1 |
6223846 | Schechter | May 2001 | B1 |
6233938 | Nicodemus | May 2001 | B1 |
6282900 | Bell | Sep 2001 | B1 |
6282917 | Mongan | Sep 2001 | B1 |
6295818 | Ansley | Oct 2001 | B1 |
6299690 | Mongeon | Oct 2001 | B1 |
6341781 | Matz | Jan 2002 | B1 |
6374630 | Jones | Apr 2002 | B1 |
6393851 | Wightman | May 2002 | B1 |
6432320 | Bonsignore | Aug 2002 | B1 |
6434955 | Ng | Aug 2002 | B1 |
6442951 | Maeda | Sep 2002 | B1 |
6446425 | Lawlor | Sep 2002 | B1 |
6446465 | Dubar | Sep 2002 | B1 |
6463730 | Keller | Oct 2002 | B1 |
6484490 | Olsen | Nov 2002 | B1 |
6539720 | Rouse et al. | Apr 2003 | B2 |
6539728 | Korin | Apr 2003 | B2 |
6571548 | Bronicki | Jun 2003 | B1 |
6598397 | Hanna | Jul 2003 | B2 |
6644062 | Hays | Nov 2003 | B1 |
6657849 | Andresakis | Dec 2003 | B1 |
6668554 | Brown | Dec 2003 | B1 |
6684625 | Kline | Feb 2004 | B2 |
6695974 | Withers | Feb 2004 | B2 |
6715294 | Anderson | Apr 2004 | B2 |
6734585 | Tornquist | May 2004 | B2 |
6735948 | Kalina | May 2004 | B1 |
6739142 | Korin | May 2004 | B2 |
6751959 | McClanahan | Jun 2004 | B1 |
6769256 | Kalina | Aug 2004 | B1 |
6799892 | Leuthold | Oct 2004 | B2 |
6808179 | Bhattacharyya | Oct 2004 | B1 |
6810335 | Lysaght | Oct 2004 | B2 |
6817185 | Coney | Nov 2004 | B2 |
6857268 | Stinger | Feb 2005 | B2 |
6910334 | Kalina | Jun 2005 | B2 |
6918254 | Baker | Jul 2005 | B2 |
6921518 | Johnston | Jul 2005 | B2 |
6941757 | Kalina | Sep 2005 | B2 |
6960839 | Zimron | Nov 2005 | B2 |
6960840 | Willis | Nov 2005 | B2 |
6962054 | Linney | Nov 2005 | B1 |
6964168 | Pierson | Nov 2005 | B1 |
6968690 | Kalina | Nov 2005 | B2 |
6986251 | Radcliff | Jan 2006 | B2 |
7013205 | Hafner et al. | Mar 2006 | B1 |
7021060 | Kalina | Apr 2006 | B1 |
7022294 | Johnston | Apr 2006 | B2 |
7033533 | Lewis-Aburn et al. | Apr 2006 | B2 |
7036315 | Kang | May 2006 | B2 |
7041272 | Keefer | May 2006 | B2 |
7047744 | Robertson | May 2006 | B1 |
7048782 | Couch | May 2006 | B1 |
7062913 | Christensen | Jun 2006 | B2 |
7096665 | Stinger | Aug 2006 | B2 |
7124587 | Linney | Oct 2006 | B1 |
7174715 | Armitage | Feb 2007 | B2 |
7194863 | Ganev | Mar 2007 | B2 |
7197876 | Kalina | Apr 2007 | B1 |
7200996 | Cogswell | Apr 2007 | B2 |
7234314 | Wiggs | Jun 2007 | B1 |
7249588 | Russell | Jul 2007 | B2 |
7278267 | Yamada | Oct 2007 | B2 |
7279800 | Bassett | Oct 2007 | B2 |
7287381 | Pierson | Oct 2007 | B1 |
7305829 | Mirolli | Dec 2007 | B2 |
7313926 | Gurin | Jan 2008 | B2 |
7340894 | Miyahara et al. | Mar 2008 | B2 |
7340897 | Zimron | Mar 2008 | B2 |
7406830 | Valentian | Aug 2008 | B2 |
7416137 | Hagen et al. | Aug 2008 | B2 |
7453242 | Ichinose | Nov 2008 | B2 |
7458217 | Kalina | Dec 2008 | B2 |
7458218 | Kalina | Dec 2008 | B2 |
7469542 | Kalina | Dec 2008 | B2 |
7516619 | Pelletier | Apr 2009 | B2 |
7621133 | Tomlinson | Nov 2009 | B2 |
7654354 | Otterstrom | Feb 2010 | B1 |
7665291 | Anand | Feb 2010 | B2 |
7665304 | Sundel | Feb 2010 | B2 |
7685821 | Kalina | Mar 2010 | B2 |
7730713 | Nakano | Jun 2010 | B2 |
7735335 | Uno | Jun 2010 | B2 |
7770376 | Brostmeyer | Aug 2010 | B1 |
7827791 | Pierson | Nov 2010 | B2 |
7838470 | Shaw | Nov 2010 | B2 |
7841179 | Kalina | Nov 2010 | B2 |
7841306 | Myers | Nov 2010 | B2 |
7854587 | Ito | Dec 2010 | B2 |
7866157 | Ernst | Jan 2011 | B2 |
7900450 | Gurin | Mar 2011 | B2 |
7950230 | Nishikawa | May 2011 | B2 |
7950243 | Gurin | May 2011 | B2 |
7972529 | Machado | Jul 2011 | B2 |
8096128 | Held et al. | Jan 2012 | B2 |
8099198 | Gurin | Jan 2012 | B2 |
8146360 | Myers | Apr 2012 | B2 |
8281593 | Held | Oct 2012 | B2 |
20010015061 | Viteri et al. | Aug 2001 | A1 |
20010030952 | Roy | Oct 2001 | A1 |
20020029558 | Tamaro | Mar 2002 | A1 |
20020066270 | Rouse et al. | Jun 2002 | A1 |
20020078696 | Korin | Jun 2002 | A1 |
20020078697 | Lifson | Jun 2002 | A1 |
20020082747 | Kramer | Jun 2002 | A1 |
20030000213 | Christensen | Jan 2003 | A1 |
20030061823 | Alden | Apr 2003 | A1 |
20030154718 | Nayar | Aug 2003 | A1 |
20030182946 | Sami | Oct 2003 | A1 |
20030213246 | Coll et al. | Nov 2003 | A1 |
20030221438 | Rane et al. | Dec 2003 | A1 |
20040011038 | Stinger | Jan 2004 | A1 |
20040011039 | Stinger et al. | Jan 2004 | A1 |
20040020185 | Brouillette et al. | Feb 2004 | A1 |
20040020206 | Sullivan et al. | Feb 2004 | A1 |
20040021182 | Green et al. | Feb 2004 | A1 |
20040035117 | Rosen | Feb 2004 | A1 |
20040083731 | Lasker | May 2004 | A1 |
20040083732 | Hanna et al. | May 2004 | A1 |
20040097388 | Brask et al. | May 2004 | A1 |
20040105980 | Sudarshan et al. | Jun 2004 | A1 |
20040107700 | McClanahan et al. | Jun 2004 | A1 |
20040159110 | Janssen | Aug 2004 | A1 |
20040211182 | Gould | Oct 2004 | A1 |
20050056001 | Frutschi | Mar 2005 | A1 |
20050096676 | Gifford, III et al. | May 2005 | A1 |
20050109387 | Marshall | May 2005 | A1 |
20050137777 | Kolavennu et al. | Jun 2005 | A1 |
20050162018 | Realmuto et al. | Jul 2005 | A1 |
20050167169 | Gering et al. | Aug 2005 | A1 |
20050183421 | Vaynberg et al. | Aug 2005 | A1 |
20050196676 | Singh et al. | Sep 2005 | A1 |
20050198959 | Schubert | Sep 2005 | A1 |
20050227187 | Schilling | Oct 2005 | A1 |
20050252235 | Critoph et al. | Nov 2005 | A1 |
20050257812 | Wright et al. | Nov 2005 | A1 |
20060010868 | Smith | Jan 2006 | A1 |
20060060333 | Chordia et al. | Mar 2006 | A1 |
20060066113 | Ebrahim et al. | Mar 2006 | A1 |
20060080960 | Rajendran et al. | Apr 2006 | A1 |
20060112693 | Sundel | Jun 2006 | A1 |
20060182680 | Keefer et al. | Aug 2006 | A1 |
20060211871 | Dai et al. | Sep 2006 | A1 |
20060213218 | Uno et al. | Sep 2006 | A1 |
20060225459 | Meyer | Oct 2006 | A1 |
20060249020 | Tonkovich et al. | Nov 2006 | A1 |
20060254281 | Badeer et al. | Nov 2006 | A1 |
20070001766 | Ripley et al. | Jan 2007 | A1 |
20070019708 | Shiflett et al. | Jan 2007 | A1 |
20070027038 | Kamimura et al. | Feb 2007 | A1 |
20070056290 | Dahm | Mar 2007 | A1 |
20070089449 | Gurin | Apr 2007 | A1 |
20070108200 | McKinzie, II | May 2007 | A1 |
20070119175 | Ruggieri et al. | May 2007 | A1 |
20070130952 | Copen | Jun 2007 | A1 |
20070151244 | Gurin | Jul 2007 | A1 |
20070161095 | Gurin | Jul 2007 | A1 |
20070163261 | Strathman | Jul 2007 | A1 |
20070195152 | Kawai et al. | Aug 2007 | A1 |
20070204620 | Pronske et al. | Sep 2007 | A1 |
20070227472 | Takeuchi et al. | Oct 2007 | A1 |
20070234722 | Kalina | Oct 2007 | A1 |
20070245733 | Pierson et al. | Oct 2007 | A1 |
20070246206 | Gong et al. | Oct 2007 | A1 |
20080006040 | Peterson et al. | Jan 2008 | A1 |
20080010967 | Griffin | Jan 2008 | A1 |
20080023666 | Gurin | Jan 2008 | A1 |
20080053095 | Kalina | Mar 2008 | A1 |
20080066470 | MacKnight | Mar 2008 | A1 |
20080135253 | Vinegar et al. | Jun 2008 | A1 |
20080173450 | Goldberg et al. | Jul 2008 | A1 |
20080211230 | Gurin | Sep 2008 | A1 |
20080250789 | Myers et al. | Oct 2008 | A1 |
20080252078 | Myers | Oct 2008 | A1 |
20090021251 | Simon | Jan 2009 | A1 |
20090085709 | Meinke | Apr 2009 | A1 |
20090107144 | Moghtaderi et al. | Apr 2009 | A1 |
20090139234 | Gurin | Jun 2009 | A1 |
20090139781 | Straubel | Jun 2009 | A1 |
20090173337 | Tamaura et al. | Jul 2009 | A1 |
20090173486 | Copeland et al. | Jul 2009 | A1 |
20090180903 | Martin et al. | Jul 2009 | A1 |
20090205892 | Jensen et al. | Aug 2009 | A1 |
20090211251 | Petersen et al. | Aug 2009 | A1 |
20090257902 | Ernens | Oct 2009 | A1 |
20090266075 | Westmeier et al. | Oct 2009 | A1 |
20090293503 | Vandor | Dec 2009 | A1 |
20100024421 | Litwin | Feb 2010 | A1 |
20100077792 | Gurin | Apr 2010 | A1 |
20100083662 | Kalina | Apr 2010 | A1 |
20100122533 | Kalina | May 2010 | A1 |
20100146949 | Stobart et al. | Jun 2010 | A1 |
20100146973 | Kalina | Jun 2010 | A1 |
20100156112 | Held et al. | Jun 2010 | A1 |
20100162721 | Welch et al. | Jul 2010 | A1 |
20100205962 | Kalina | Aug 2010 | A1 |
20100218513 | Vaisman et al. | Sep 2010 | A1 |
20100218930 | Proeschel | Sep 2010 | A1 |
20100263380 | Biederman et al. | Oct 2010 | A1 |
20100300093 | Doty | Dec 2010 | A1 |
20100319346 | Ast et al. | Dec 2010 | A1 |
20100326076 | Ast et al. | Dec 2010 | A1 |
20110030404 | Gurin | Feb 2011 | A1 |
20110048012 | Ernst et al. | Mar 2011 | A1 |
20110061384 | Held et al. | Mar 2011 | A1 |
20110061387 | Held et al. | Mar 2011 | A1 |
20110088399 | Briesch et al. | Apr 2011 | A1 |
20110113781 | Frey et al. | May 2011 | A1 |
20110179799 | Allam | Jul 2011 | A1 |
20110185729 | Held | Aug 2011 | A1 |
20110192163 | Kasuya | Aug 2011 | A1 |
20120047892 | Held et al. | Mar 2012 | A1 |
20120067055 | Held | Mar 2012 | A1 |
20120128463 | Held | May 2012 | A1 |
20120131918 | Held | May 2012 | A1 |
20120131919 | Held | May 2012 | A1 |
20120131920 | Held | May 2012 | A1 |
20120131921 | Held | May 2012 | A1 |
20120159922 | Gurin | Jun 2012 | A1 |
20120159956 | Gurin | Jun 2012 | A1 |
20120174558 | Gurin | Jul 2012 | A1 |
20120186219 | Gurin | Jul 2012 | A1 |
20120247134 | Gurin | Oct 2012 | A1 |
20120247455 | Gurin et al. | Oct 2012 | A1 |
20130033037 | Held et al. | Feb 2013 | A1 |
20130036736 | Hart et al. | Feb 2013 | A1 |
20130113221 | Held | May 2013 | A1 |
Number | Date | Country |
---|---|---|
2794150 | Nov 2011 | CA |
202055876 | Nov 2011 | CN |
202544943 | Nov 2012 | CN |
202718721 | Feb 2013 | CN |
19906087 | Aug 2000 | DE |
10052993 | May 2002 | DE |
1977174 | Oct 2008 | EP |
2419621 | Feb 2012 | EP |
2446122 | May 2012 | EP |
2478201 | Jul 2012 | EP |
2500530 | Jul 2012 | EP |
2550436 | Sep 2012 | EP |
856985 | Dec 1960 | GB |
2075608 | Nov 1981 | GB |
58-193051 | Nov 1983 | JP |
61-152914 | Jul 1986 | JP |
01-240705 | Sep 1989 | JP |
05-321612 | Dec 1993 | JP |
06-331225 | Nov 1994 | JP |
09-100702 | Apr 1997 | JP |
2641581 | May 1997 | JP |
09-209716 | Aug 1997 | JP |
2858750 | Dec 1998 | JP |
2001-193419 | Jul 2001 | JP |
2002-097965 | Apr 2002 | JP |
2004-239250 | Aug 2004 | JP |
2004-332626 | Nov 2004 | JP |
2005-533972 | Nov 2005 | JP |
2005-533972 | Nov 2005 | JP |
2007-198200 | Aug 2007 | JP |
2007-198200 | Sep 2007 | JP |
4343738 | Oct 2009 | JP |
2011-017268 | Jan 2011 | JP |
10-0191080 | Jun 1999 | KR |
100191080 | Jun 1999 | KR |
10-2007-0086244 | Aug 2007 | KR |
10-0766101 | Oct 2007 | KR |
10-0844634 | Jul 2008 | KR |
10-0844634 | Jul 2008 | KR |
10-20100067927 | Jun 2010 | KR |
1020110018769 | Feb 2011 | KR |
1069914 | Sep 2011 | KR |
1103549 | Jan 2012 | KR |
10-2012-0058582 | Jun 2012 | KR |
2012-0068670 | Jun 2012 | KR |
2012-0128753 | Nov 2012 | KR |
2012-0128755 | Nov 2012 | KR |
WO 9105145 | Apr 1991 | WO |
WO 9609500 | Mar 1996 | WO |
WO 0144658 | Jun 2001 | WO |
WO 2006060253 | Jun 2006 | WO |
WO 2006137957 | Dec 2006 | WO |
WO 2007056241 | May 2007 | WO |
WO 2007079245 | Jul 2007 | WO |
WO 2007082103 | Jul 2007 | WO |
WO 2007112090 | Oct 2007 | WO |
WO 2008039725 | Apr 2008 | WO |
2009-045196 | Apr 2009 | WO |
WO 2009058992 | May 2009 | WO |
2010-074173 | Jul 2010 | WO |
WO 2010121255 | Oct 2010 | WO |
WO 2010126980 | Nov 2010 | WO |
WO 2010151560 | Dec 2010 | WO |
WO 2011017450 | Feb 2011 | WO |
WO 2011017476 | Feb 2011 | WO |
WO 2011017599 | Feb 2011 | WO |
WO 2011034984 | Mar 2011 | WO |
WO 2011094294 | Aug 2011 | WO |
WO 2011119650 | Sep 2011 | WO |
2012-074905 | Jun 2012 | WO |
2012-074907 | Jun 2012 | WO |
2012-074911 | Jun 2012 | WO |
WO 2012074940 | Jun 2012 | WO |
WO 2013055691 | Apr 2013 | WO |
WO 2013059687 | Apr 2013 | WO |
WO 2013059695 | Apr 2013 | WO |
WO 2013070249 | May 2013 | WO |
WO 2013074907 | May 2013 | WO |
Entry |
---|
PCT/US2011/029486—International Search Report and Written Opinion dated Nov. 16, 2011. |
PCT/US2011/062201—International Search Report and Written Opinion dated Jun. 26, 2012. |
PCT/US2011/062207—International Search Report and Written Opinion dated Jun. 28, 2012. |
PCT/US2011/062198—International Search Report and Written Opinion dated Jul. 2, 2012. |
PCT/US2011/062266—International Search Report and Written Opinion dated Jul. 9, 2012. |
PCT/US2011/029486—International Preliminary Report on Patentability dated Sep. 25, 2012. |
PCT/US2012/062204—International Search Report and Written Opinion dated Nov. 1, 2012. |
Vaclav Dostal, Martin Kulhanek, “Research on the Supercritical Carbon Dioxide Cycles in the Czech Republic”, Department of Fluid Mechanics and Power Engineering Czech Technical University in Prague, RPI, Troy, NY, Apr. 29-30, 2009; 8 pages. |
Alpy, N., et al., “French Atomic Energy Commission views as regards SCO2 Cycle Development priorities and related R&D approach,” Presentation, Symposium on SCO2 Power Cycles, Apr. 29-30, 2009, Troy, NY, 20 pages. |
Angelino, G., and Invernizzi, C.M., “Carbon Dioxide Power Cycles using Liquid Natural Gas as Heat Sink”, Applied Thermal Engineering Mar. 3, 2009, 43 pages. |
Bryant, John C., Saari, Henry, and Zanganeh, Kourosh, “An Analysis and Comparison of the Simple and Recompression Supercritical CO2 Cycles” Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 8 pages. |
Chapman, Daniel J., Arias, Diego A., “An Assessment of the Supercritical Carbon Dioxide Cycle for Use in a Solar Parabolic Trough Power Plant”, Presentation, Abengoa Solar, Apr. 29-30, 2009, Troy, NY, 20 pages. |
Chapman, Daniel J., Arias, Diego A., “An Assessment of the Supercritical Carbon Dioxide Cycle for Use in a Solar Parabolic Trough Power Plant”, Paper, Abengoa Solar, Apr. 29-30, 2009, Troy, NY, 5 pages. |
Chen, Yang, Lund Qvist, P., Johansson, A., Platell, P., “A Comparative Study of the Carbon Dioxide Transcritical Power Cycle Compared with an Organic Rankine Cycle with R123 as Working Fluid in Waste Heat Recovery”, Science Direct, Applied Thermal Engineering, Jun. 12, 2006, 6 pages. |
Chen, Yang, “Thermodynamic Cycles Using Carbon Dioxide as Working Fluid”, Doctoral Thesis, School of Industrial Engineering and Management, Stockholm, Oct. 2011, 150 pages., (3 parts). |
Chordia, Lalit, “Optimizing Equipment for Supercritical Applications”, Thar Energy LLC, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO 7 pages. |
Combs, Osie V., “An Investigation of the Supercritical CO2 Cycle (Feher cycle) for Shipboard Application”, Massachusetts Institute of Technology, May 1977, 290 pages. |
Di Bella, Francis A., “Gas Turbine Engine Exhaust Waste Heat Recovery Navy Shipboard Module Development”, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 8 pages. |
Dostal, V., et al., A Supercritical Carbon Dioxide Cycle for Next Generation Nuclear Reactors, Mar. 10, 2004, 326 pages., (7 parts). |
Dostal, Vaclav, and Dostal, Jan, “Supercritical CO2 Regeneration Bypass Cycle—Comparison to Traditional Layouts”, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 5 pages. |
Eisemann, Kevin, and Fuller, Robert L., “Supercritical CO2 Brayton Cycle Design and System Start-up Options”, Barber Nichols, Inc., Paper, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 7 pages. |
Eisemann, Kevin, and Fuller, Robert L., “Supercritical CO2 Brayton Cycle Design and System Start-up Options”, Presentation, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 11 pages. |
Feher, E.G., et al., “Investigation of Supercritical (Feher) Cycle”, Astropower Laboratory, Missile & Space Systems Division, Oct. 1968, 152 pages. |
Fuller, Robert L., and Eisemann, Kevin, “Centrifugal Compressor Off-Design Performance for Super-Critical CO2” , Barber Nichols, Inc. Presentation, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 20 pages. |
Fuller, Robert L., and Eisemann, Kevin, “Centrifugal Compressor Off-Design Performance for Super-Critical CO2”, Paper, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 12 pages. |
Gokhstein, D.P. and Verkhivker, G.P. “Use of Carbon Dioxide as a Heat Carrier and Working Substance in Atomic Power Stations”, Soviet Atomic Energy, Apr. 1969, vol. 26, Issue 4, pp. 430-432. |
Gokhstein, D.P.; Taubman, E.I.; Konyaeva, G.P., “Thermodynamic Cycles of Carbon Dioxide Plant with an Additional Turbine After the Regenerator”, Energy Citations Database, Mar. 1973, 1 Page, Abstract only. |
Hejzlar, P. et al., “Assessment of Gas Cooled Gas Reactor with Indirect Supercritical CO2 Cycle” Massachusetts Institute of Technology, Jan. 2006, 10 pages. |
Hoffman, John R., and Feher, E.G., “150 kwe Supercritical Closed Cycle System”, Transactions of the ASME, Jan. 1971, pp. 70-80. |
Jeong, Woo Seok, et al., “Performance of S-C02 Brayton Cycle with Additive Gases for SFR Application”, Korea Advanced Institute of Science and Technology, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 5 pages. |
Johnson, Gregory A., & Mcdowell, Michael, “Issues Associated with Coupling Supercritical CO2 Power Cycles to Nuclear, Solar and Fossil Fuel Heat Sources”, Hamilton Sundstrand, Energy Space & Defense-Rocketdyne, Apr. 29-30, 2009, Troy, NY, Presentation, 18 pages. |
Kawakubo, Tomoki, “Unsteady Roto-Stator Interaction of a Radial-Inflow Turbine with Variable Nozzle Vanes”, ASME Turbo Expo 2010: Power for Land, Sea, and Air; vol. 7: Turbomachinery, Parts A, B, and C; Glasgow, UK, Jun. 14-18, 2010, Paper No. GT2010-23677, pp. 2075-2084, (1 page, Abstract only). |
Kulhanek, Martin, “Thermodynamic Analysis and Comparison of S-C02 Cycles”, Presentation, Czech Technical University in Prague, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 14 pages. |
Kulhanek, Martin, “Thermodynamic Analysis and Comparison of S-C02 Cycles”, Paper, Czech Technical University in Prague, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 7 pages. |
Kulhanek, Martin., and Dostal, Vaclav, “Supercritical Carbon Dioxide Cycles Thermodynamic Analysis and Comparison”, Abstract, Faculty Conference held in Prague, Mar. 24, 2009, 13 pages. |
Ma, Zhiwen and Turchi, Craig S., “Advanced Supercritical Carbon Dioxide Power Cycle Configurations for Use in Concentrating Solar Power Systems”, National Renewable Energy Laboratory, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 4 pages. |
Munoz De Escalona, Jose M., “The Potential of the Supercritical Carbon Dioxide Cycle in High Temperature Fuel Cell Hybrid Systems”, Paper, Thermal Power Group, University of Seville, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, Co, 6 pp. |
Moisseytsev, Anton, and Sienicki, Jim, “Investigation of Alternative Layouts for the Supercritical Carbon Dioxide Brayton Cycle for a Sodium-Cooled Fast Reactor”, Supercritical CO2 Power Cycle Symposium, Troy, NY, Apr. 29, 2009, 26 pages. |
Munoz De Escalona, Jose M., et al., “The Potential of the Supercritical Carbon Dioxide Cycle in High Temperature Fuel Cell Hybrid Systems”, Presentation, Thermal Power Group, University of Seville, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 19 pages. |
Muto, Y., et al., “Application of Supercritical CO2 Gas Turbine for the Fossil Fired Thermal Plant”, Journal of Energy and Power Engineering, Sep. 30, 2010, vol. 4, No. 9, 9 pages. |
Muto, Yasushi, and Kato, Yasuyoshi, “Optimal Cycle Scheme of Direct Cycle Supercritical CO2 Gas Turbine for Nuclear Power Generation Systems”, International Conference on Power Engineering-2007, Oct. 23-27, 2007, Hangzhou, China, pp. 86-87. |
Noriega, Bahamonde J.S., “Design Method for s-C02 Gas Turbine Power Plants”, Master of Science Thesis, Delft University of Technology, Oct. 2012, 122 pages., (3 parts). |
Oh, Chang, et al., “Development of a Supercritical Carbon Dioxide Brayton Cycle: Improving PBR Efficiency and Testing Material Compatibility”, Presentation, Nuclear Energy Research Initiative Report, Oct. 2004, 38 pages. |
Oh, Chang; et al., “Development of a Supercritical Carbon Dioxide Brayton Cycle: Improving VHTR Efficiency and Testing Material Compatibility”, Presentation, Nuclear Energy Research Initiative Report, Final Report, Mar. 2006, 97 pages. |
Parma, Ed, et al., “Supercritical CO2 Direct Cycle Gas Fast Reactor (SC-GFR) Concept” Presentation for Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 40 pages. |
Parma, Ed, et al., “Supercritical CO2 Direct Cycle Gas Fast Reactor (SC-GFR) Concept”, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 9 pages. |
Parma, Edward J., et al., “Supercritical CO2 Direct Cycle Gas Fast Reactor (SC-GFR) Concept”, Presentation, Sandia National Laboratories, May 2011, 55 pages. |
PCT/US2006/049623 (EPS-020PCT)—Written Opinion of ISA dated Jan. 4, 2008, 4 pages. |
PCT/US2007/001120 (EPS-019PCT)—International Search Report dated Apr. 25, 2008, 7 pages. |
PCT/US2007/079318 (EPS-021PCT)—International Preliminary Report on Patentability dated Jul. 7, 2008, 5 pages. |
PCT/US2010/031614 (EPS-014)—International Search Report dated Jul. 12, 2010, 3 pages. |
PCT/US2010/031614—(EPS-14)—International Preliminary Report on Patentability dated Oct. 27, 2011, 9 pages. |
PCT/US2010/039559 (EPS-015)—International Preliminary Report on Patentability dated Jan. 12, 2012, 7 pages. |
PCT/US2010/039559 (EPS-015)—Notification of Transmittal of the International Search Report and Written Opinion of the International Searching Authority, or the Declaration dated Sep. 1, 2010, 6 pages. |
PCT/US2010/044476(EPS-018)—International Search Report dated Sep. 29, 2010, 23 pages. |
PCT/US2010/044681 (EPS016)—International Search Report and Written Opinion mailed Oct. 7,2010,10 pages. |
PCT/US2010/044681 (EPS-016)—International Preliminary Report on Patentability dated Feb. 16, 2012, 9 pages. |
PCT/US2010/049042 (EPS-008)—International Search Report and Written Opinion dated Nov. 17, 2010, 11 pages. |
PCT/US2010/049042 (EPS-008)—International Preliminary Report on Patentability dated Mar. 29, 2012, 18 pages. |
PCT/US2012/000470 (EPS-124)—International Search Report dated Mar. 8, 2013, 10 pages. |
PCT/US2012/061151 (EPS-125)—International Search Report and Written Opinion dated Feb. 25, 2013, 9 pages. |
PCT/US2012/061159 (EPS-126)—International Search Report dated Mar. 2, 2013, 10 pages. |
Persichilli, Michael, et al., “Supercritical CO2 Power Cycle Developments and Commercialization: Why sCO2 can Displace Steam” Echogen Power Systems LLC, Power-Gen India & Central Asia 2012, Apr. 19-21, 2012, New Delhi, India, 15 pages. |
Saari, Henry, et al., “Supercritical CO2 Advanced Brayton Cycle Design”, Presentation, Carleton University, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 21 pages. |
San Andres, Luis, “Start-Up Response of Fluid Film Lubricated Cryogenic Turbopumps (Preprint)”, AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Cincinnati, OH, Jul. 8-11, 2007, 38 pages. |
Sarkar, J., and Bhattacharyya, Souvik, “Optimization of Recompression S-CO2 Power Cycle with Reheating” Energy Conversion and Management 50 (May 17, 2009), pp. 1939-1945. |
Tom, Samsun Kwok Sun, “The Feasibility of Using Supercritical Carbon Dioxide as a Coolant for the Candu Reactor”, the University of British Columbia, Jan. 1978, 156 pages. |
VGB PowerTech Service GmbH, “CO2 Capture and Storage”, A VGB Report on the State of the Art, Aug. 25, 2004, 112 pages. |
Vidhi, Rachana, et al., “Study of Supercritical Carbon Dioxide Power Cycle for Power Conversion from Low Grade Heat Sources”, Presentation, University of South Florida and Oak Ridge National Laboratory, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 17 pages. |
Vidhi, Rachana, et al.., “Study of Supercritical Carbon Dioxide Power Cycle for Power Conversion from Low Grade Heat Sources”, Paper, University of South Florida and Oak Ridge National Laboratory, Supercritical CO2 Power Cycle Symposium, May 24-25, 2011, Boulder, CO, 8 pages. |
Wright, Steven A., et al., “Modeling and Experimental Results for Condensing Supercritical CO2 Power Cycles”, Sandia Report, Jan. 2011, 47 pages. |
Wright, Steven A., et al., “Supercritical CO2 Power Cycle Development Summary at Sandia National Laboratories”, May 24-25, 2011, (1 page, Abstract only). |
Wright, Steven, “Mighty Mite”, Mechanical Engineering, Jan. 2012, pp. 41-43. |
Yoon, Ho Joon, et at, “Preliminary Results of Optimal Pressure Ratio for Supercritical CO2 Brayton Cycle coupled with Small Modular Water Cooled Reactor”, Presentation, Korea Advanced Institute of Science and Technology and Khalifa University of Science, Technology and Research, Boulder, CO, May 25, 2011, 18 pages. |
Yoon, Ho Joon, et al., “Preliminary Results of Optimal Pressure Ratio for Supercritical CO2 Brayton Cycle coupled with Small Modular Water Cooled Reactor”, Paper, Korea Advanced Institute of Science and Technology and Khalifa University of Science, Technology and Research, May 24-25, 2011, Boulder, CO, 7 pages. |
Number | Date | Country | |
---|---|---|---|
20130113221 A1 | May 2013 | US |