The present disclosure relates to systems used in mechanical energy generation broadly.
In particular, the present disclosure relates to a mechanical energy generation system with energy recovery, that converts heat energy into mechanical energy and increases the efficiency by allowing the resulting energy to be used again during this converting, and a method thereof.
Today, mechanical energy is needed in all areas. Since mechanical energy does not exist spontaneously in nature, it can be obtained by conversion of other different types of energy. In order to obtain mechanical energy through conversion of other types of energy, various methods and systems are used.
In the state of art, the power of liquid fluids is often used to obtain mechanical energy. One of the systems used for this purpose, known as diaphragm system, is a system where the liquid fluid is routed to a unit that generates mechanical energy by compressed air generated by a compressor is exerted onto a liquid inside a closed volume. In this system, compressed air being produced in the existing plant is being used and energy needs to be spent again in order to produce mechanical energy.
Another method used in the state of the art is a conversion system that allows the mechanical energy to be obtained by means of heating. In this system, liquid fluid is transferred to the heater by means of a pump, liquid fluid heated at high temperature in the heater is sent to the turbine during flash evaporation phase and mechanical energy is obtained. In the continuation of this system, the gas fluid, which is liquefied again by means of a condenser, continues to cycle. In this system, both for the transmission of liquid fluid by the pump and for the heating of liquid fluid in the heater, energy must be spent separately in order to produce mechanical energy. This causes the resulting mechanical energy efficiency to be low.
Elements such as electric motors, heaters etc. used in the state of the art systems cause the efficiency to decrease. In addition, the cost of these systems is high and they are mostly based on generating electrical energy.
In the known state of the art, some documents have been found in the research. One of them is the application no. TR2017/11951. In this application, the water in the liquid phase is transitioned into the vapor phase by arc plasma method and the resulting high pressure is converted from kinetic energy to mechanical energy. In addition, depending on the evaporating water, there are mechanical improvements that enable the water to be pumped continuously. This invention has a complex and costly structure, as mentioned in the state of the art, and it is necessary to spend energy for the system in order to produce mechanical energy.
In patent document no. EP2529087B1, a power generation system using the Rankine cycle consists of a turbine, a generator, an evaporator, an electric heater, an inverter system, and a Rankine cycle voltage regulator. In this system, the evaporator provides evaporated fluid to the turbine. The electric heater allows this fluid to be heated. Generation of electrical energy is provided through turbine and generator. Excess electrical energy generated by the inverter system connected to the generator is directed to the electric heater. This system, as mentioned in the state of the art, is used to generate both electric energy and some of the energy produced is spent by the system again.
The patent document EP2699767B1 mentions a device and method based on the Rankine cycle. In this configuration, the heat in the high temperature source is transferred to the working fluid in the device by a heat exchanger. In this way, the working fluid evaporates and turns into mechanical energy and is directly connected to a turbine and converted into energy. Steam coming out of the turbine is condensed by means of a condenser and fed back again into the heat exchanger by means of a pump. In this invention, innovations have been made in the turbine where energy is produced and there is no mention of a structure that allows re-use the energy of the obtained high-heat gas fluid. Furthermore, it also contains elements such as pumps that will cause some of the resulting energy to be spent again.
As a result, improvements are being made in the systems that are used for generating mechanical energy and methods thereof, so new structures are needed that will eliminate the disadvantages mentioned above and provide solutions for existing systems.
The present invention relates to a system for mechanical energy generation system with energy recovery that meets the requirements mentioned above, while eliminating all disadvantages and providing some additional advantages.
The main purpose of the invention is to establish a system that provides mechanical energy generation.
The aim of the invention is to introduce a system that allows the production of mechanical energy by reusing the energy generated during mechanical energy production, thereby increasing efficiency.
The aim of the invention is to present a system in which minimum energy is consumed for the mechanical energy to be produced, thus providing an efficient production.
In order to achieve all of the aforementioned advantages and will be understood with the detailed description given below, the present invention is a mechanical energy generation system with energy recovery, comprising; at least one heating volume where the liquid fluid is stored, at least one heat exchanger element or a heating fluid which allows the heat to be transferred to the liquid fluid inside the heating volume, at least one outlet line which allows the liquid and/or gas fluid to exit in a pressurized state when it is compressed inside the heating volume when the liquid fluid transitions partially into gas phase and which allows resulting mechanical energy and at least one feed line which allows the liquid fluid to be fed into the heating volume, wherein; an embodiment comprising at least a second closed volume to which the energy of the high-heat liquid/gas fluid remaining inside the heating volume when the liquid/gas fluid exits through the outlet line is transferred to be re-used and which is connected with the heating volume is obtained.
Again the present invention is a method for mechanical energy generation with energy recovery; which allow, after heating and partially transitioning into gas phase a liquid fluid inside a heating volume by means of a heat exchanger element or a heating fluid, obtaining mechanical energy as a result of the liquid and/or gas fluid compressed inside the heating volume being exited through an outlet line and feeding liquid fluid back again into the heating volume by means of a feed line, wherein; an embodiment comprising the process step of transferring the energy of the high-heat liquid/gas fluid remaining inside the heating volume when the liquid and/or gas fluid exits through the outlet line to be reused to at least a second closed volume and which is connected with the heating volume is obtained.
The energy generated during the acquisition of mechanical energy was reused and the efficiency was increased with the embodiment of the invention.
The structural and characteristics features and all advantages of the invention will be understood more clearly through the following figures and the detailed explanation written with reference to these figures. Therefore, the evaluation should be based on these figures and the detailed description.
The structure of the present invention and its advantages with further elements will become clear based on the drawings described below.
In the herein detailed description, the preferred embodiments of the mechanical energy generation system and method with energy recovery of the invention are described only for a better understanding of the subject matter, without imposing any limitations.
The mechanical energy generator with energy recovery according to the invention, in its most general state, comprises; at least one heating volume (1) where the liquid fluid stored, at least one heat exchanger element (2) or heater fluid, which allows phase transition by changing the temperature of the liquid fluid inside the heating volume (1), an outlet line (6) which allows liquid and/or gas fluid obtained with high pressure inside the heating volume (1) after phase transition to exit with pressure, at least a second closed volume in connection with the heating volume (1) to which the high-heat liquid and/or gas fluid remaining inside the heating volume (1) is transferred to recover its energy and a feed line (7) which supply fluid back again to the system.
The method for generating mechanical energy with energy recovery according to the invention, in its most general state, is related to; a liquid fluid transitioning partially into a gas phase by changing its temperature using a heat exchanger element (2) or a heating fluid inside the heating volume (1) and after evacuating the liquid and/or gas fluid by the high pressure resulting inside the heating volume (1) through the outlet line (6) thus generating energy, transferring the high-heat liquid/gas fluid remaining inside the heating volume (1) and or the high-heat liquid/gas fluid exiting through the outlet line (6) to at least a second closed volume and/or to a heat exchanger element (2) to re-use their energy.
In the mechanical energy generation system with energy recovery, the heating volume (1) is a closed volume and is resilient to high pressure so that the liquid fluid in it can be heated and transitioned into the gas phase. The heat exchanger element (2), which allows changing the temperature of liquid fluid, can be in any structure that performs heating and cooling functions, as well as a heat exchanger that allows transferring the energy of any waste heat to the system. The heat exchanger element (2) may be located inside or outside of the heating volume (1). Alternatively, changing the temperature of liquid fluid can be achieved by means of a heater fluid. By feeding a gas fluid into the heating volume (1) at a high temperature, the temperature of the liquid fluid inside the heating volume (1) can be increased. Or vice versa, by means of a liquid fluid fed into the heating volume (1) at a low temperature, the temperature of the gas fluid in the heating volume (1) can be reduced and it can be liquefied. As the second closed volume in the system; a storage volume (3) and/or a second heating volume (1) and/or counter-pressure volume (9) can be used. These mentioned closed volumes can be used in the system alone or together. Storage volumes (3) are fixed volume containers and may be in different volumes according to the structure of the system. Counter-pressure volume (9) is a closed volume of any structure with flexible or mechanical properties that will apply self-pressure to the liquid/gas fluid transferred into it. The second closed volume may be located inside or outside the heating volume (1) depending on the use. The connection of the heating volume (1) with the second closed volume/volumes is preferably provided by a transfer line (8). Control elements (11) are used both on the feed line (7), on the output line (6) and on the transfer line (8) to ensure control of all liquid/gas fluids in the system. Mentioned control elements (11) are preferably valves, and these control elements (11) can provide connection between the heating volume (1) and at least a second closed volume, or they can be positioned on the transfer line (8) that provides connection. High-heat and high pressure liquid/gas fluid leaving the mechanical energy generation system through the outlet line (6) can be used as mechanical energy in addition to acting as a pump for the system or generating various types of energy together with energy conversion units. One of these energy conversion systems generates electrical energy through a turbine (4) and a generator (5).
With the embodiment of the invention, the energy of high-heat liquid and/or gas fluid occurred within the heating volume (1) is recovered in the form of heat energy or pressure energy. To achieve this, the energy of the high-heat liquid and/or gas fluid occurred within the heating volume (1) is used in every way to re-heat the liquid fluid within the system. To ensure this use, high-heat liquid and/or gas fluid can be transferred to another heating volume (1) and/or a heat exchanger element (2) and/or a storage volume (3) and/or a counter-pressure volume (9). In this way, the liquid fluid in the system is heated by supplying direct or indirect energy. Some application forms of energy recovery mechanical energy generation system are stated below.
In the mechanical energy generation system seen in
The heating of the liquid fluid within inside the heating volume (1) is carried out by means of the heat exchanger element (2) or heater fluid as mentioned. Indirect heating of liquid fluid occurs when the heat exchanger element (2) is used. If the heater fluid is used, the heater fluid that enters the heating volume (1) can transfer both pressure and heat energy to drive the entire system. In this way, a direct energy transfer is realized. The use of oil vapor can be given as an example of heater fluid. In the case that water is used as liquid fluid in the system, heating volume (1) when oil vapor is given as heater fluid, both the heat of the water is increased and water and oil will not mix together so they can be removed from the system separately.
In cases where more than one heating volume (1) is used in the system, different liquid fluids can be used within the mentioned heating volume (1). In this case, the mentioned heating volumes (1) are gradually connected to each other in such a way that liquid fluids do not mix. In this connection type, every heating volume (1) except the first heating volume (1.1) supplies the energy needed by the condenser (10) of the previous system.
In the system of the invention, storage volumes (3), which are the mentioned second closed volumes, the heating volume (1) or the counter-pressure volume (9), can be used separately, as well as together in an unlimited number. With the embodiment of the invention, the energy of the high-temperature liquid/gas fluid occurred within the heating volume (1) is reused and a system in which the energy loss is reduced to a minimum is provided. The mentioned recovered energy can be heat energy or pressure energy.
In the embodiment of the invention, the liquid/gas fluid can be fed again by means of the feed line (7) over the low-pressure liquid/gas fluid which remains in the heating volume (1) after obtaining mechanical energy, or by means of the heat exchanger element (2) it can be ensured that the liquid/gas fluid's temperature is reduced and completely transitioned into the liquid phase.
In the system of the invention, the bypass lines (12) can be connected between transfer lines (8), outlet line (6) and feed line (7). Thereby, the transmission of liquid/gas fluid within the system and the transfer of energy with mass can be achieved. (
The control elements mentioned in the embodiment of the invention (11) are used at every point where fluids need to be controlled. Control of control elements (11) can be manually achieved, as well as pressure sensitive or sensor structures or any kind of autonomous control can be provided.
The feed line (7), outlet line (6) and transmission line (8) mentioned in the embodiment of the invention can be used interchangeably. For example, if necessary connections are made, the feed line (7) can be used as the outlet line (6) or the outlet line (6) can be used as the feed line (7). Likewise, the transmission line (8) can function as the feed line (7), providing liquid transmission between closed volumes. Thereby, a single line can be connected, allowing this line to function as a feed line (7) and/or outlet line (6) and/or transfer line (8).
Number | Date | Country | Kind |
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2019/15963 | Oct 2019 | TR | national |
This application is the national stage entry of International Application No. PCT/TR2020/050949, filed on Oct. 15, 2020, which is based upon and claims priority to Turkish Patent Application No. 2019/15963 filed on Oct. 16, 2019, the entire contents of which are incorporated herein by reference.
Filing Document | Filing Date | Country | Kind |
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PCT/TR2020/050949 | 10/15/2020 | WO |