CN112853388A - System and method for recovering electrolyte waste heat for power generation using organic rankine cycle - Google Patents
System and method for recovering electrolyte waste heat for power generation using organic rankine cycle Download PDFInfo
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- CN112853388A CN112853388A CN202011624187.4A CN202011624187A CN112853388A CN 112853388 A CN112853388 A CN 112853388A CN 202011624187 A CN202011624187 A CN 202011624187A CN 112853388 A CN112853388 A CN 112853388A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
- F01K27/02—Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention discloses a system and a method for recovering electrolyte waste heat for power generation by using an organic Rankine cycle. The system comprises at least one electrolyte circulation loop and at least one organic Rankine circulation loop, wherein one electrolyte heat exchanger is simultaneously positioned in the two circulation loops, an electrolyte circulation stream flowing in the electrolyte circulation loop and an organic working medium stream flowing in the organic Rankine circulation loop exchange heat through the electrolyte heat exchanger, the electrolyte circulation stream is cooled, and the organic working medium stream is gasified. The gasified organic working medium stream works through an expander and drives a generator to generate electricity. The generated electric energy can be incorporated into the power grid or converted into direct current for input to the electrolysis device.
Description
Technical Field
The invention belongs to the field of electrolysis, particularly relates to the field of waste heat recovery in a water electrolysis device, and relates to a system and a method for recovering electrolyte waste heat for power generation by using organic Rankine cycle.
Background
The electrolysis of water to produce hydrogen and oxygen has many industrial applications. For example, high purity oxygen and hydrogen are used in the semiconductor industry; hydrogen is used as a clean and efficient new energy source, and petrochemical industry and the like which take the hydrogen as a raw material. The technology of electrolyzing water has been continuously developed since the phenomenon of electrolyzing water was observed in 1789. At present, 3 different electrolytic cells are commonly used, namely an alkaline electrolytic cell, a polymer film electrolytic cell and a solid oxide electrolytic cell, and the electrolytic efficiency is also improved to 70-90%.
The alkaline electrolytic cell is the most mature, economical and easy to operate electrolytic cell. The electrolyte used is typically a 10% to 30% by weight potassium hydroxide solution (KOH). After the direct current is introduced into the electrolytic cell, hydrogen is generated at the cathode and oxygen is generated at the anode, which consumes a large amount of electric energy. For example, a hydrogen production of 1000Nm3The electricity consumption of the electrolytic cell per hour is about 5.0 MWh. Thus, methods are needed that increase the efficiency of electrolysis and/or reduce electricity consumption.
U.S. patent publication US2018/0171870a1 discloses a system that integrates an electrolyzer, an engine, an organic rankine cycle, and a generator. Hydrogen generated by water electrolysis is used as fuel to be supplied to an engine, and hot waste gas generated by the engine exchanges heat with working medium in the organic Rankine cycle and is evaporated. The evaporated working fluid expands to apply work to drive the generator to generate electricity, and the generated alternating current is converted into direct current and is introduced into the electrolytic bath. This system requires the use of an additional engine to achieve energy conversion and utilization.
It can be seen that there is not sufficient research and disclosure in the prior art regarding the manner of energy recovery in electrolytic processes, particularly in the process of electrolyzing water.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, it is an object of the present invention to provide a system and method for converting and utilizing the residual heat contained in the electrolyte into electrical energy.
In one aspect, the invention discloses a system for recovering electrolyte waste heat, which comprises at least one electrolyte circulation loop and at least one organic Rankine cycle loop, wherein one electrolyte heat exchanger is simultaneously positioned in the two circulation loops, and an electrolyte circulation stream flowing in the electrolyte circulation loop and an organic working medium stream flowing in the organic Rankine cycle loop exchange heat through the electrolyte heat exchanger.
Optionally, the organic working fluid stream comprises tetrafluoroethane or freon.
Further, the electrolyte circulation loop also comprises an electrolytic bath and an electrolyte circulation pump, wherein an electrolyte circulation stream flowing out of the electrolytic bath is input into the electrolyte heat exchanger through the electrolyte circulation pump, and flows back to the electrolytic bath after being cooled by an organic working medium stream flowing in the organic Rankine circulation loop, and the temperature after cooling is approximately 85-90 ℃.
Furthermore, the organic Rankine cycle circuit also comprises a Rankine expansion machine and a generator, a Rankine cycle economizer, a Rankine cycle condenser, a Rankine cycle pump and an electrolyte heat exchanger which are linked with the Rankine expansion machine, wherein, the organic working medium stream is heated and gasified by the electrolyte circulating stream in the electrolyte heat exchanger to form a gaseous working medium stream, the stream is expanded in a Rankine expansion machine to do work, then is cooled by a condensed working medium stream in the Rankine cycle economizer, is condensed by cooling water in the Rankine cycle condenser to obtain a condensed working medium stream, and the condensed working medium stream is conveyed to the Rankine cycle economizer by the Rankine cycle pump, after being heated by the gaseous working medium stream, the liquid is input into the electrolyte heat exchanger again to form circulation, and, the generator linked with the expander converts expansion work into electric energy, and the electric energy is converted into direct current and then is input into an electrolytic cell or is directly merged into a power grid.
In another aspect, the invention also discloses a method for recovering electrolyte waste heat by adopting the system, at least one electrolyte circulation loop and at least one organic Rankine circulation loop are provided, wherein one electrolyte heat exchanger is simultaneously positioned in the two circulation loops, and an electrolyte circulation stream flowing in the electrolyte circulation loop and an organic working medium stream flowing in the organic Rankine circulation loop exchange heat through the electrolyte heat exchanger.
Furthermore, in the electrolyte circulation loop, an electrolyte circulation stream flowing out of the electrolytic cell is input into the electrolyte heat exchanger through the electrolyte circulation pump, is cooled by an organic working medium stream flowing in the organic Rankine cycle loop, and then flows back to the electrolytic cell.
Furthermore, a Rankine expansion machine and a generator, a Rankine cycle economizer, a Rankine cycle condenser and a Rankine cycle pump which are linked with the Rankine expansion machine are also provided in the organic Rankine cycle circuit, wherein, the organic working medium stream is heated and gasified by the electrolyte circulating stream in the electrolyte heat exchanger to form a gaseous working medium stream, the stream is expanded in a Rankine expansion machine to do work, then is cooled by a condensed working medium stream in the Rankine cycle economizer, is condensed by cooling water in the Rankine cycle condenser to obtain a condensed working medium stream, and the condensed working medium stream is conveyed to the Rankine cycle economizer by the Rankine cycle pump, after being heated by the gaseous working medium stream, the liquid is input into the electrolyte heat exchanger again to form circulation, and, the generator linked with the expander converts expansion work into electric energy, and the electric energy is converted into direct current and then is input into an electrolytic cell or is directly merged into a power grid.
Compared with the prior art, the technical scheme provided by the invention has the following advantages:
the existing electrolyte liquid circulation loop in the electrolytic cell does not need to be greatly changed, so that the cost investment is saved;
in the prior art, the temperature of the electrolyte stream is generally reduced by cooling water, and the cooling water is replaced by the organic working medium stream in the organic Rankine cycle, so that the use of the cooling water is saved.
Aiming at the low temperature (generally lower than 100 ℃) of the electrolyte circulation stream and the low thermal product energy, the Rankine cycle economizer is added in the organic Rankine cycle, and the heat exchange efficiency is improved.
By adopting the system and the method, the electric energy generated by the organic Rankine cycle is transmitted back to the electrolytic cell, so that the electric energy consumption in the water electrolysis process can be reduced by 3-4%.
Drawings
The advantages and spirit of the present invention can be further understood by the following detailed description of the invention and the accompanying drawings.
FIG. 1 is a schematic flow diagram of the present invention.
The reference numbers are as follows:
e1, E2, E3-represent 3 independent electrolytic cells; p1, P2, P3-electrolyte circulating pump; LE1, LE2, LE 3-electrolyte heat exchanger; v1, V2, V3-Rankine cycle control valve; EX-rankine expander; g-a generator; an EC-Rankine cycle economizer; a CD-Rankine cycle condenser; a PO-Rankine cycle pump; ST-a liquid storage tank;
1,2 and 3-are respectively a first organic working medium stream, a second organic working medium stream and a third organic working medium stream; 4-a gaseous working substance stream; 5-cooling the working medium stream; 6-condensing the working medium stream; 7-cooling water; 8-an organic rankine cycle loop; 10-an electrolyte circulation loop; 11,12, 13-are the first, second and third electrolyte circulation streams, respectively.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention should be understood not to be limited to such an embodiment described below, and the technical idea of the present invention may be implemented in combination with other known techniques or other techniques having the same functions as those of the known techniques.
In the following description of the embodiments, for purposes of clearly illustrating the structure and operation of the present invention, directional terms are used, but the terms "front", "rear", "left", "right", "outer", "inner", "outward", "inward", "axial", "radial", and the like are to be construed as words of convenience and are not to be construed as limiting terms.
In the following description of the specific embodiments, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
The terms "upstream" and "downstream" refer to the relative positional relationship between steps, equipment, or parts of equipment. In the present invention, the step first performed according to the process flow, the equipment first used is located at the subsequent step or upstream of the equipment.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless clearly indicated to the contrary, each aspect or embodiment defined herein may be combined with any other aspect or embodiments. In particular, any feature indicated as being preferred or advantageous may be combined with any other feature indicated as being preferred or advantageous.
The electrolysis device is connected with a direct current power supply and used for electrolyzing water to generate O2And H2The apparatus of (1). Various electrolyzers, including alkaline electrolyzers, acid electrolyzers, proton exchange membrane electrolyzers, and the like, are suitable for use in the present invention. Taking an alkaline electrolyzer as an example, a 10% -30% KOH aqueous solution is used as an electrolyte, and the following reactions occur in an electrolytic cell:
at the anode: 4OH- → O2+2H2O+4e-；
At the cathode: 4H2O+4e-→4OH-+2H2；
And (3) total reaction: 2H2O→2H2+O2
The construction of a typical alkaline electrolysis apparatus is well known to those skilled in the art and comprises an electrolytic cell, electrolyte, cathode, anode and diaphragm. The diaphragm is generally made of asbestos and mainly serves to separate the gases. The power consumption per unit gas production, i.e. the efficiency of the cell, depends on the electrolysis voltage and the impedance of the electrolyte. As the higher the reaction temperature is, the lower the impedance of the electrolyte is, in the prior art, the working temperature of the electrolytic cell is 70-95 ℃, and more preferably 80-90 ℃.
In the alkaline electrolysis device, the steps of electrolyzing water to prepare hydrogen and oxygen are as follows: the gas generated near the electrode and the electrolyte are respectively led into the cathode gas electrolytic liquid separator and the anode gas electrolytic liquid separator through pipelines. In each separator, the mixture of electrolyte and gas is heated to separate the gas from the mixture. The separated electrolyte is mixed with desalted water added for replenishing water consumed by electrolysis, and the mixed electrolyte is returned to the electrolytic bath for circulation and electrolysis through an electrolyte circulating pump, an electrolyte cooler and an optional filter. The electrolyte cooler uses cooling water to control the temperature of the returning electrolyte.
Organic Rankine Cycle (ORC) is a Rankine Cycle using low boiling point Organic matter as working medium, and is preferably suitable for low-temperature waste heat recovery. In the prior art, the heat exchanger mainly comprises a heat exchanger, an expander, a condenser, a working medium pump and other main components, and the working principle is as follows: the organic working medium absorbs heat from the waste heat flow in the heat exchanger to generate steam with certain pressure and temperature, and the steam enters the expansion machine to expand and do work, so that the generator is driven. The steam discharged from the expansion machine releases heat to cooling water in the condenser, condenses into liquid state, and finally returns to the heat exchanger again by the aid of the working medium pump, and the process is continuously circulated. Suitable working substances are, for example, tetrafluoroethane or freon.
In the invention, the electrolyte circulating stream with the temperature not more than 100 ℃ exchanges heat with the organic working medium, and the hot product energy of the stream is lower. Therefore, in order to ensure the gasification of the organic working medium, the invention adds a Rankine cycle economizer (namely a heat exchanger) after the expander and before the condenser, which is different from the prior art. After expansion and before condensation, the organic working medium stream exchanges heat with the condensed working medium stream in a Rankine cycle economizer, and a part of contained waste heat is further transferred to the Rankine cycle economizer, so that the temperature of the stream is raised, the subsequent gasification is easier, and meanwhile, the consumption of cooling water is correspondingly reduced.
The following detailed description of the embodiments of the invention is provided in conjunction with fig. 1.
Fig. 1 is a schematic view of a principle of recovering waste heat from an electrolyte circulation circuit using an organic rankine cycle and generating electricity using the same. Fig. 1 includes an electrolyte circulation circuit 10 and an organic rankine cycle circuit 8. In the electrolyte circulation circuit 10, three parallel devices for electrolysis of water are schematically shown, each device being simply identified by the electrolyzer (E1, E2, E3), the electrolyte circulation pump (P1, P2, P3) and the electrolyte heat exchanger (LE1, LE2, LE3), while omitting some other components known to those skilled in the art. In order to recover waste heat in the electrolyte from the three water electrolysis devices, after being condensed, a working medium stream 6 is heated by a Rankine cycle Economizer (EC) and then is divided into three streams, namely a first organic working medium stream 1, a second organic working medium stream 2 and a third organic working medium stream 3, which respectively enter an electrolyte heat exchanger LE1, an LE2 and an LE3 and respectively exchange heat with a first electrolyte circulation stream 11, a second electrolyte circulation stream 12 and a third electrolyte circulation stream 13. And the temperature of the first, second and third electrolyte circulating streams after temperature reduction is between 85 and 90 ℃, and the first, second and third electrolyte circulating streams are conveyed back to the electrolytic cell by an electrolyte circulating pump to form circulation. And the three organic working medium streams 1,2 and 3 absorbing the waste heat of the electrolyte circulating stream are evaporated and gasified and then combined into a gaseous working medium stream 4, and the gaseous working medium stream enters a Rankine expander EX for expansion and work to drive a linked generator G. The electricity generated by the generator G can be converted into direct current for the water electrolysis device or be introduced into the power grid. And the expanded gaseous working medium stream 4 transfers part of heat to the condensed working medium stream 6 in the Rankine cycle economizer EC, and the condensed working medium stream is changed into a cooled working medium stream 5. And condensing the cooled working medium stream 5 in a Rankine cycle condenser CD by cooling water 7 to obtain a condensed working medium stream 6, pumping the stream into a Rankine cycle Economizer (EC) by a Rankine cycle pump PO for heating, dividing the stream into three streams, namely a first organic working medium stream 1, a second organic working medium stream 2 and a third organic working medium stream 3, and continuously circulating in the same way. Optionally, a reservoir ST is provided between the rankine cycle pump PO and the rankine cycle condenser CD, and rankine cycle control valves V1, V2, V3 are provided on the first, second and third organic working fluid streams, respectively. By adopting the device and the method of the invention, the electric quantity generated by the generator G is equivalent to 3-4% of the total electric quantity required by the water electrolysis device, and the economic benefit is considerable.
The embodiments described in the specification are only preferred embodiments of the present invention, and the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the present invention. Those skilled in the art can obtain technical solutions through logical analysis, reasoning or limited experiments according to the concepts of the present invention, and all such technical solutions are within the scope of the present invention.
Claims (12)
1. The system for recovering electrolyte waste heat for power generation by using organic Rankine cycle is characterized by comprising at least one electrolyte circulation loop and at least one organic Rankine circulation loop, wherein one electrolyte heat exchanger is simultaneously positioned in the two circulation loops, and an electrolyte circulation stream flowing in the electrolyte circulation loop and an organic working medium stream flowing in the organic Rankine circulation loop exchange heat through the electrolyte heat exchanger.
2. The system of claim 1, wherein the organic working fluid stream comprises tetrafluoroethane or freon.
3. The system of claim 1, wherein the electrolyte circulation loop further comprises an electrolytic cell and an electrolyte circulation pump, wherein the electrolyte circulation stream flowing from the electrolytic cell is fed to the electrolyte heat exchanger via the electrolyte circulation pump, cooled by the organic working fluid stream flowing in the organic rankine cycle loop, and flows back to the electrolytic cell.
4. The system of claim 3, wherein the temperature of the electrolyte circulating stream after being cooled by the electrolyte heat exchanger is 85-90 ℃.
5. The system of claim 1, wherein the ORC circuit includes a Rankine expander and an associated generator, a Rankine cycle economizer, a Rankine cycle condenser, a Rankine cycle pump, and an electrolyte heat exchanger, wherein, the organic working medium stream is heated and gasified by the electrolyte circulating stream in the electrolyte heat exchanger to form a gaseous working medium stream, the stream is expanded in a Rankine expansion machine to do work, then is cooled by a condensed working medium stream in the Rankine cycle economizer, is condensed by cooling water in the Rankine cycle condenser to obtain a condensed working medium stream, and the condensed working medium stream is conveyed to the Rankine cycle economizer by the Rankine cycle pump, after being heated by the gaseous working medium stream, the gas is input into the electrolyte heat exchanger again to form circulation, and the generator linked with the expander converts expansion work into electric energy.
6. The system of claim 5, wherein the electrical energy is converted to direct current and fed to an electrolyzer or directly into a power grid. Systems and methods for recovering electrolyte waste heat for power generation using an organic rankine cycle.
7. A method for recovering electrolyte residual heat using the system of claim 1, characterized in that at least one electrolyte circulation loop and at least one organic rankine cycle loop are provided, wherein one electrolyte heat exchanger is located in both circulation loops, and the electrolyte circulation stream flowing in the electrolyte circulation loop exchanges heat with the organic working fluid stream flowing in the organic rankine cycle loop through the electrolyte heat exchanger.
8. The method of claim 7, wherein the organic working fluid stream comprises tetrafluoroethane or freon.
9. The method according to claim 7, wherein the temperature of the electrolyte circulating flow after being cooled by the electrolyte heat exchanger is 85-90 ℃.
10. The method according to claim 7, wherein an electrolysis cell and an electrolyte circulation pump are also provided in the electrolyte circulation circuit, wherein the electrolyte circulation stream flowing out of the electrolysis cell is fed via the electrolyte circulation pump to the electrolyte heat exchanger, cooled by the organic working medium stream flowing in the organic Rankine cycle circuit and flows back into the electrolysis cell.
11. The method of claim 7, wherein a Rankine expander and a generator, a Rankine cycle economizer, a Rankine cycle condenser and a Rankine cycle pump are also provided in the ORC loop, wherein, the organic working medium stream is heated and gasified by the electrolyte circulating stream in the electrolyte heat exchanger to form a gaseous working medium stream, the stream is expanded in a Rankine expansion machine to do work, then is cooled by a condensed working medium stream in the Rankine cycle economizer, is condensed by cooling water in the Rankine cycle condenser to obtain a condensed working medium stream, and the condensed working medium stream is conveyed to the Rankine cycle economizer by the Rankine cycle pump, after being heated by the gaseous working medium stream, the gas is input into the electrolyte heat exchanger again to form circulation, and the generator linked with the expander converts expansion work into electric energy.
12. The method of claim 11, wherein the electrical energy is converted to direct current and fed to an electrolysis cell or incorporated directly into the power grid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011624187.4A CN112853388A (en) | 2020-12-31 | 2020-12-31 | System and method for recovering electrolyte waste heat for power generation using organic rankine cycle |
| TW110147415A TWI795128B (en) | 2020-12-31 | 2021-12-17 | System and method for using organic rankine cycle to recover electrolyte waste heat for electricity generation |
| JP2021207615A JP2022105292A (en) | 2020-12-31 | 2021-12-21 | System and method of recovering waste heat from electrolyte for generating power, by using organic rankine cycle |
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| CN202011624187.4A CN112853388A (en) | 2020-12-31 | 2020-12-31 | System and method for recovering electrolyte waste heat for power generation using organic rankine cycle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114540856A (en) * | 2022-03-30 | 2022-05-27 | 中国华能集团清洁能源技术研究院有限公司 | Photo-thermal complementary hydrogen production device |
| WO2023113720A1 (en) * | 2021-12-16 | 2023-06-22 | Repg Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi | An energy generation system |
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| JP2001057222A (en) * | 1999-08-18 | 2001-02-27 | Shinko Pantec Co Ltd | Energy storage device and its operation method |
| AUPQ540200A0 (en) * | 2000-02-02 | 2000-02-24 | Aquadyne Incorporated | Water distillation systems |
| US7428816B2 (en) * | 2004-07-16 | 2008-09-30 | Honeywell International Inc. | Working fluids for thermal energy conversion of waste heat from fuel cells using Rankine cycle systems |
| JP2009221961A (en) * | 2008-03-17 | 2009-10-01 | Fuji Electric Holdings Co Ltd | Binary power generating system |
| GB201202791D0 (en) * | 2012-02-20 | 2012-04-04 | Simpson Robert | Methods and system for energy conversion and generation |
| EP2893055A4 (en) * | 2012-09-07 | 2016-08-24 | Gamikon Pty Ltd | Electrolysis apparatus |
| CN105899638B (en) * | 2013-11-22 | 2022-02-01 | 科慕埃弗西有限公司 | Compositions comprising tetrafluoropropene and tetrafluoroethane, their use in power cycles, and power cycle devices |
| CN104819040B (en) * | 2015-05-08 | 2017-03-08 | 大连海事大学 | A kind of boat diesel engine exhaust-gas treatment and utilize device and its method of work |
| JP2016041939A (en) * | 2015-10-20 | 2016-03-31 | 株式会社タクマ | Waste power generation system |
| US20180171870A1 (en) * | 2017-02-17 | 2018-06-21 | Farhad Salek | Electrocatalytic system for reducing pullution and fuel consumption |
| CN108365235B (en) * | 2018-01-04 | 2020-12-01 | 山东科技大学 | Fuel cell waste heat utilization system based on organic Rankine cycle |
| CN112145247B (en) * | 2020-07-31 | 2022-10-21 | 华电电力科学研究院有限公司 | Flexible and efficient power generation system and method for coupling solar energy and hydrogen energy organic Rankine cycle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023113720A1 (en) * | 2021-12-16 | 2023-06-22 | Repg Enerji Sistemleri Sanayi Ve Ticaret Anonim Sirketi | An energy generation system |
| CN114540856A (en) * | 2022-03-30 | 2022-05-27 | 中国华能集团清洁能源技术研究院有限公司 | Photo-thermal complementary hydrogen production device |
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| TW202227669A (en) | 2022-07-16 |
| JP2022105292A (en) | 2022-07-13 |
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