Integrated gasification combined cycle system with vapor absorption chilling
View Patent ↗The present application and the resultant patent provide an integrated gasification combined cycle system. The integrated gasification combined cycle system may include a gas turbine engine, one or more power plant components, one or more carbon dioxide compressors, and a vapor absorption chiller. The vapor absorption chiller is driven by a waste heat source flow from the carbon dioxide compressors to produce a chilling medium flow to cool the power plant components.
1. An integrated gasification combined cycle system, comprising:
a gas turbine engine;
one or more power plant components;
one or more carbon dioxide compressors; and
a vapor absorption chiller;
wherein the vapor absorption chiller is driven by a waste heat source flow from the one or more carbon dioxide compressors to produce a chilling medium flow to cool the one or more power plant components.
2. The integrated gasification combined cycle system of claim 1 , wherein the one or more power plant components comprise one or more turbine inlet chillers.
3. The integrated gasification combined cycle system of claim 1 , wherein the one or more power plant components comprise one or more compressor coolers.
4. The integrated gasification combined cycle system of claim 3 , wherein the one or more compressor coolers comprise a pre-cooler, an inter-cooler, and an after-cooler.
5. The integrated gasification combined cycle system of claim 1 , further comprising a compressor heat exchanger in communication with the one or more carbon dioxide compressors and the vapor absorption chiller.
6. The integrated gasification combined cycle system of claim 5 , wherein the compressor heat exchanger and the vapor absorption chiller are in communication via a first fluid circuit.
7. The integrated gasification combined cycle system of claim 5 , wherein the compressor heat exchanger and the one or more carbon dioxide compressors are in communication via a second fluid circuit.
8. The integrated gasification combined cycle system of claim 1 , wherein the waste heat source flow comprises a flow of carbon dioxide.
9. The integrated gasification combined cycle system of claim 1 , wherein the one or more carbon dioxide compressors comprise a low pressure compressor, an intermediate pressure compressor, and a high pressure compressor.
10. The integrated gasification combined cycle system of claim 1 , wherein the vapor absorption chiller comprises a refrigerant therein.
11. The integrated gasification combined cycle system of claim 10 , wherein the refrigerant comprises a flow of carbon dioxide.
12. The integrated gasification combined cycle system of claim 1 , wherein the vapor absorption chiller comprises an absorbent therein.
13. The integrated gasification combined cycle system of claim of claim 12 , wherein the absorbent comprises an alcohol or an ether.
14. A method of cooling a power plant component, comprising:
generating a waste heat source flow in one or more carbon dioxide compressors;
driving a vapor absorption chiller with the waste heat source flow;
generating a chilling medium flow in the vapor absorption chiller; and
cooling the power plant component with the chilling medium flow.
15. The method claim 14 , further comprising the steps of:
vaporizing a refrigerant in a generator of the vapor absorption chiller;
liquefying the refrigerant in a condenser;
expanding the refrigerant in an evaporator; and
reabsorbing the refrigerant in an absorber.
16. An integrated gasification combined cycle system, comprising:
one or more carbon dioxide compressors;
one or more compressor coolers; and
a vapor absorption chiller;
wherein the vapor absorption chiller is driven by a waste heat source flow from the one or more carbon dioxide compressors to produce a chilling medium flow to cool the one or more compressor coolers.
17. The integrated gasification combined cycle system of claim 16 , wherein the waste heat source flow comprises a flow of carbon dioxide.
18. The integrated gasification combined cycle system of claim 16 , wherein the one or more compressor coolers comprise a pre-cooler, an inter-cooler, and an after-cooler.
19. The integrated gasification combined cycle system of claim 16 , wherein the one or more carbon dioxide compressors comprise a low pressure compressor, an intermediate pressure compressor, and a high pressure compressor.
20. The integrated gasification combined cycle system of claim 1 , wherein the vapor absorption chiller comprises a refrigerant therein and wherein the refrigerant comprises a flow of carbon dioxide.