A vast number of people throughout the world lack access to a healthy drinking water supply. Many of those people live near water sources, but the water from those sources is unfit for drinking and the people have no ready means of purifying the water.
Copper-chlorine thermochemical water decomposition system 4 generates hydrogen and oxygen from water. Various embodiments of copper-chlorine thermochemical water decomposition systems are known. The specific configuration of the copper-chlorine thermochemical water decomposition system 4 is unimportant to the present invention, so long as it generates hydrogen and oxygen from water.
In addition to hydrogen and oxygen, the copper-chlorine thermochemical water decomposition process may also generate heat. In one embodiment, system 2 further includes means for capturing heated air from the copper-chlorine thermochemical water decomposition process and means for introducing the captured heated air into combustion chamber 6 to augment the vacuum generated by the heated water vapor traveling from combustion chamber 6 to condensation chamber 14.
Examples of the means for capturing the heated air include a jacket or casing 26 surrounding copper-chlorine thermochemical water decomposition system 4. The heated air is generated between copper-chlorine thermochemical water decomposition system 4 and jacket 26 and introduced into combustion chamber 6 through heated air channel 28 between jacket 26 and combustion chamber 6.
Hydrogen channel 10 is disposed to transport hydrogen from copper-chlorine thermochemical water decomposition system 4 to combustion chamber 6. Oxygen channel 8 is disposed to transport oxygen from copper-chlorine thermochemical water decomposition system 4 to combustion chamber 6. In one embodiment, all of the hydrogen and oxygen generated from the copper-chlorine thermochemical water decomposition process is transported to combustion chamber 6.
In an alternative embodiment, some of the oxygen and hydrogen generated from the copper-chlorine thermochemical water decomposition process is stored for future use or for other uses. Hydrogen storage system 38 is in fluid communication with hydrogen channel 10 and oxygen storage system 40 is in fluid communication with oxygen channel 8 so that some of the hydrogen and oxygen may be stored.
Combustion chamber 6 is a chamber for combusting hydrogen from electrolysis system 4 in oxygen from electrolysis system 4 to generate heated water vapor. In addition to water vapor, the combustion process also generates heat. In one embodiment combustion chamber 6 is tightly insulated to ensure that as much of the heat generated by the combustion process as possible is contained within combustion chamber 6 and flows with heated water vapor into condensation chamber 14.
In one embodiment, system 2 further includes means for capturing air external to combustion chamber 6, heated from the combustion process within combustion chamber 6 and means for introducing the captured heated air into combustion chamber 6 to augment the vacuum generated by the heated water vapor traveling from combustion chamber 6 to condensation chamber 14.
Examples of the means for capturing the heated air include a jacket or casing 34 surrounding combustion chamber 6. The heated air is generated between combustion chamber 6 and jacket 34 and introduced into combustion chamber 6 through heated air channel 36 between jacket 34 and combustion chamber 6.
In one embodiment, system 2 further includes external combustion engine 30 and electrical power generation system 32. One example of an external combustion engine is a Stirling engine. Another example of an external combustion engine is a steam engine. External combustion engine 30 is disposed to utilize the combustion of hydrogen within combustion chamber 6 as a source of external combustion. Electrical power generation system 32 is powered by external combustion engine 30 and, in one embodiment, provides electrical power to copper-chlorine thermochemical water decomposition system 4.
Evaporation chamber 12 generates water vapor from water. In one embodiment, evaporation chamber 12 is disposed on a body of water. In one embodiment, evaporation chamber 12 is a passive solar evaporation chamber. In alternate embodiments, evaporation chamber 12 may be any type of chamber for evaporating water to form water vapor.
In one embodiment, evaporation chamber 12 has a clear top and an open bottom. The open bottom rests in a body of water, such as salt water or other non-potable water source.
Water vapor conduit 16 is disposed between evaporation chamber 12 and condensation chamber 14. As heated water vapor from combustion chamber 6 travels from combustion chamber 6 into condensation chamber 14, a Venturi effect is created, which generates a vacuum on water vapor conduit 16. The vacuum draws water vapor from evaporation chamber 12 into condensation chamber 14.
In one embodiment, system 2 further includes condensing pipe 38 and collection chamber 40. Although referred to as a pipe, condensing pipe 38 may be any type of fluid carrying conduit, such as a pipe, tube, or hose.
Condensing pipe 38 is disposed in a body of water and interconnects water vapor conduit 16 and condensation chamber 14. Water vapor drawn from evaporation chamber 12 first passes through condensing pipe 38, then through water vapor conduit 16 and into condensation chamber 14. Water vapor passing through condensing pipe 38 is condensed into purified liquid water.
Collection chamber 40 is in fluid communication with condensing pipe 38. Collection chamber 40 is also disposed in the body of water, below condensing pipe 38. Purified liquid water in condensing pipe 38 flows by gravity into collection chamber 40.
Condensation chamber 14 allows water vapor to cool, which causes it to condense to purified liquid water. In one embodiment, condensation chamber 14 is cooled by air. In an alternative embodiment, condensation chamber 14 is cooled by water.
Condensation chamber 14 is disposed to receive water vapor from both combustion chamber 6 and evaporation chamber 12. In one embodiment, condensation chamber 14 is disposed above combustion chamber 6 so that as the heated water vapor naturally rises, it flows into condensation chamber 14.
Water vapor in condensation chamber 14 is condensed into purified liquid water in condensation chamber 14. Receiving water vapor from both combustion chamber 6 and evaporation chamber 12 produces more purified liquid water than receiving water vapor from only combustion chamber 6.
The condensed, purified, liquid water may be immediately distributed or collected in storage containers 50. Storage containers 50 are any container suitable for the storage of purified liquid water, such as barrels, jars, wells, cylinders, and the like.
Water is electrolyzed 54 to generate hydrogen and oxygen. The hydrogen and oxygen are transported 56 to combustion chamber 6. The hydrogen is combusted 58 in the oxygen in combustion chamber 6 to generate heated water vapor.
The heated water vapor is transported 60 from combustion chamber 6 to condensation chamber 14. The heated water vapor moves across an opening to the water vapor conduit 16, in so doing, a vacuum is generated within water vapor conduit 16.
During this process, water is evaporated 62 in evaporation chamber 12 to form water vapor. In one embodiment, water vapor conduit 16 connects directly to evaporation chamber 12. In an alternate embodiment, condensing pipe 38 interconnects 64 water vapor conduit 16 and condensation chamber 12.
The vacuum, generated by transporting 60 the heated water vapor from combustion chamber 6, draws 66 evaporated water vapor from evaporation chamber 12. Where condensing pipe 38 interconnects 64 water vapor conduit 16 and condensation chamber 12, evaporated water vapor is also drawn 68 from evaporation chamber 12. At least some of the evaporated water vapor passing through condensing pipe 38 condenses 70 into purified liquid water. The purified liquid water is collected 72 in collection chamber 40.
The evaporated water vapor passing through water vapor conduit 16 joins the heated water vapor in condensation chamber 14 where they are both condensed 74 to purified liquid water and collected 76. Condensing 74 water vapor from both the combustion 58 and the evaporation 62 produces more purified liquid water than receiving water vapor from only the combustion. Any remaining air is exhausted out of condensation chamber 14.
In order to improve the efficiency of the process, heated air may be captured 78, 80 from both the electrolysis process 54 and the combustion process 58. The captured heated air is introduced 82 into combustion chamber 6 to augment the vacuum generated by the heated water vapor traveling from combustion chamber 6 to condensation chamber 14.
An additional improvement to the efficiency of the process allows external combustion engine 30 to operate 84 from the combustion 58 of hydrogen in combustion chamber 6. Electrical power is generated 86 from the operation of external combustion engine 30. The electrical power may then be utilized as desired. In one embodiment, the electrical power is utilized in the electrolyzing 54 of water.
The foregoing description is only illustrative of the invention. Various alternatives and modifications can be devised by those skilled in the art without departing from the invention. Accordingly, the present invention embraces all such alternatives, modifications, and variances that fall within the scope of the appended claims.
This application claims the benefit of U.S. patent application Ser. No. 12/277,134, filed on Nov. 24, 2008.