IPC분류정보
국가/구분 |
United States(US) Patent
공개
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0923159
(2013-06-20)
|
공개번호 |
US-0341929
(2013-12-26)
|
발명자
/ 주소 |
- Ho, Tony
- Mao, Samuel S.
- Greif, Ralph
|
출원인 / 주소 |
- The Regents of the University of California
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
0 |
초록
▼
This disclosure provides systems, methods, and apparatus related to an Organic Flash Cycle (OFC). In one aspect, a modified OFC system includes a pump, a heat exchanger, a flash evaporator, a high pressure turbine, a throttling valve, a mixer, a low pressure turbine, and a condenser. The heat exchan
This disclosure provides systems, methods, and apparatus related to an Organic Flash Cycle (OFC). In one aspect, a modified OFC system includes a pump, a heat exchanger, a flash evaporator, a high pressure turbine, a throttling valve, a mixer, a low pressure turbine, and a condenser. The heat exchanger is coupled to an outlet of the pump. The flash evaporator is coupled to an outlet of the heat exchanger. The high pressure turbine is coupled to a vapor outlet of the flash evaporator. The throttling valve is coupled to a liquid outlet of the flash evaporator. The mixer is coupled to an outlet of the throttling valve and to an outlet of the high pressure turbine. The low pressure turbine is coupled to an outlet of the mixer. The condenser is coupled to an outlet of the low pressure turbine and to an inlet of the pump.
대표청구항
▼
1. A system comprising: a pump;a heat exchanger, the heat exchanger being coupled to an outlet of the pump;a flash evaporator, the flash evaporator being coupled to an outlet of the heat exchanger;a high pressure turbine, the high pressure turbine being coupled to a vapor outlet of the flash evapora
1. A system comprising: a pump;a heat exchanger, the heat exchanger being coupled to an outlet of the pump;a flash evaporator, the flash evaporator being coupled to an outlet of the heat exchanger;a high pressure turbine, the high pressure turbine being coupled to a vapor outlet of the flash evaporator;a throttling valve, the throttling valve being coupled to a liquid outlet of the flash evaporator;a mixer, the mixer being coupled to an outlet of the throttling valve and to an outlet of the high pressure turbine;a low pressure turbine, the low pressure turbine being coupled to an outlet of the mixer; anda condenser, the condenser being coupled to an outlet of the low pressure turbine and to an inlet of the pump, the system configured to be operable with an organic fluid. 2. The system of claim 1, wherein the high pressure turbine and the low pressure turbine are coupled to a generator. 3. The system of claim 1, wherein the flash evaporator includes a pressure vessel and a second throttling value. 4. The system of claim 1, wherein the organic fluid is selected from the group consisting of toluene, ethylbenzene, butylbenzene, o-xylene, m-xylene, p-xylene, tetradecamethylhexasiloxane (MD4M), tetradecamethylhexasiloxane (MD4M), decamethylcyclopentasiloxane (D5), dodecamethylpentasiloxane (MD3M), and dodecamethylcyclohexasiloxane (D6). 5. The system of claim 1, wherein the system is operable to perform a method including: (a) compressing the organic fluid with the pump;(b) after operation (a), heating the organic fluid by passing the organic fluid through the heat exchanger;(c) after operation (b), flash evaporating the organic fluid in the flash evaporator to generate a high pressure organic vapor;(d) driving the high pressure turbine with the high pressure organic vapor and lowering a pressure of the high pressure organic vapor to an intermediate pressure;(e) reducing a pressure of the organic fluid in a liquid state after operation (c) to the intermediate pressure by passing the organic fluid through the throttling valve;(f) mixing the organic fluid after operation (e) and the high pressure organic vapor after operation (d) in the mixer to form a low pressure organic vapor;(g) driving the low pressure turbine with the low pressure organic vapor and lowering a pressure of the low pressure organic vapor;(h) after operation (g), condensing the low pressure organic vapor to a liquid state of the organic fluid with the condenser; and(i) after operation (h), directing the organic fluid to the pump. 6. The system of claim 5, wherein the high pressure turbine and the low pressure turbine are coupled to a generator, and wherein operations (d) and (g) generate electricity. 7. The system of claim 5, wherein a temperature of a liquid or a vapor used to heat the organic fluid in the heat exchanger is about 80° C. to 400° C. 8. The system of claim 5, wherein a temperature of a liquid or a vapor used to heat the organic fluid in the heat exchanger is below about 300° C. 9. The system of claim 5, wherein the organic fluid is in a subcooled liquid state after operation (a). 10. The system of claim 5, wherein the organic fluid is heated isobarically in operation (b). 11. The system of claim 5, wherein the organic fluid remains in a liquid state in operation (b). 12. The system of claim 5, wherein the organic fluid is in a saturated liquid state after operation (b). 13. The system of claim 5, wherein the high pressure organic vapor is a saturated vapor or a superheated vapor after operation (d). 14. The system of claim 5, wherein the organic fluid comprises a liquid and vapor mixture after operation (e). 15. The system of claim 5, wherein the low pressure organic vapor is a saturated vapor or a superheated vapor after operation (g). 16. A method comprising: (a) compressing an organic fluid with a pump;(b) after operation (a), heating the organic fluid by passing the organic fluid through a heat exchanger;(c) after operation (b), flash evaporating the organic fluid in a flash evaporator to generate a high pressure organic vapor;(d) driving a high pressure turbine with the high pressure organic vapor and lowering a pressure of the high pressure organic vapor to an intermediate pressure;(e) reducing a pressure of the organic fluid in a liquid state after operation (c) to the intermediate pressure by passing the organic fluid through a throttling valve;(f) mixing the organic fluid after operation (e) and the high pressure organic vapor after operation (d) in a mixer to form a low pressure organic vapor;(g) driving a low pressure turbine with the low pressure organic vapor and lowering a pressure of the low pressure organic vapor;(h) after operation (g), condensing the low pressure organic vapor to a liquid state of the organic fluid with a condenser; and(i) after operation (h), directing the organic fluid to the pump. 17. The method of claim 16, wherein the high pressure turbine and the low pressure turbine are coupled to a generator, and wherein operations (d) and (g) generate electricity. 18. The method of claim 16, wherein the organic fluid is selected from the group consisting of toluene, ethylbenzene, butylbenzene, o-xylene, m-xylene, p-xylene, tetradecamethylhexasiloxane (MD4M), tetradecamethylhexasiloxane (MD4M), decamethylcyclopentasiloxane (D5), dodecamethylpentasiloxane (MD3M), and dodecamethylcyclohexasiloxane (D6). 19. The method of claim 16, wherein a temperature of a liquid or a vapor used to heat the organic fluid in the heat exchanger is about 80° C. to 400° C. 20. The method of claim 16, wherein a temperature of a liquid or a vapor used to heat the organic fluid in the heat exchanger is below about 300° C.
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