System and method for cooling using system exhaust

Abstract

A method for operating a system comprising a number of fluid streams and a number of components include a device is provided. The method comprises separating a cooling fluid from an exhaust stream discharged from a device and transferring heat to the cooling fluid from at least one of the number of fluid streams, at least one of the number of components, or both. A system comprising a number of fluid streams, a number of components including a device comprising an exhaust for discharging an exhaust stream, a separator for separating a cooling fluid from the exhaust stream, and a heat exchanger is provided. The heat exchanger transfers heat to the cooling fluid from at least one of the number of fluid streams, at least one of the number of components, or both.

1 . A method for operating a system comprising a number of fluid streams and a number of components including a device, the method comprising:
 separating a cooling fluid from an exhaust stream discharged from the device; and   transferring heat to the cooling fluid from at least one of the number of fluid streams, at least one of the number of components, or both.   
   
   
       2 . The method of  claim 1 , wherein the device comprises a turbine. 
   
   
       3 . The method of  claim 1 , wherein the cooling fluid comprises carbon dioxide or water. 
   
   
       4 . The method of  claim 1 , further comprising sequestering at least a portion of the cooling fluid from an environment outside the system. 
   
   
       5 . The method of  claim 1 , further comprising storing the cooling fluid. 
   
   
       6 . The method of  claim 1 , further comprising, before the step of transferring heat, changing the temperature, the pressure, the phase or combinations thereof of the cooling fluid. 
   
   
       7 . The method of  claim 6 , wherein the step of changing comprises lowering the temperature, the pressure, or both of the cooling fluid. 
   
   
       8 . The method of  claim 1 , wherein the step of transferring heat comprises adding the cooling fluid to least one of the number of fluid streams. 
   
   
       9 . The method of  claim 1 , wherein the step of transferring heat comprises passing the cooling fluid into a heat exchanger in thermal communication with at least one of the number of fluid streams, at least one of the number of components, or both. 
   
   
       10 . The method of  claim 1 , wherein the device comprises a gas turbine, and wherein the cooling fluid comprises carbon dioxide, the method further comprises changing the temperature of the carbon dioxide from a first temperature to a second temperature. 
   
   
       11 . A system comprising:
 a number of fluid streams;   a number of components including a device, the device comprising an exhaust for discharging an exhaust stream;   a separator for separating a cooling fluid from the exhaust stream; and   a heat exchanger for transferring heat to the cooling fluid from at least one of the number of fluid streams, at least one of the number of components, or both.   
   
   
       12 . The system of  claim 11 , wherein the device comprises a turbine. 
   
   
       13 . The system of  claim 11 , wherein the cooling fluid comprises carbon dioxide or water. 
   
   
       14 . The system of  claim 11 , wherein the system is adapted to sequester at least a portion of the cooling fluid from an environment outside the system. 
   
   
       15 . The system of  claim 11 , further comprising a storage container for storing the cooling fluid. 
   
   
       16 . The system of  claim 11 , further comprising a cooling fluid modifying apparatus for changing the temperature, the pressure, the phase or combinations thereof of the cooling fluid 
   
   
       17 . The system of  claim 16 , wherein the cooling fluid modifying apparatus lowers the temperature, lowering the pressure, changing the phase, or combinations thereof of the cooling fluid. 
   
   
       18 . The system of  claim 16 , wherein the device comprises a gas turbine, and wherein the cooling fluid comprises carbon dioxide, the method further comprises changing the temperature of the carbon dioxide from a first temperature to a second temperature. 
   
   
       19 . The system of  claim 16 , wherein the device comprises a gas turbine, and wherein the cooling fluid modifying apparatus changes the phase of the cooling fluid from a gas to a liquid. 
   
   
       20 . A system comprising:
 a number of fluid streams;   a number of components including a device;   a number of components including a device, the device comprising an exhaust for discharging an exhaust stream;   a separator for separating a cooling fluid from the exhaust stream; and   at least one fluid stream inlet for adding the cooling fluid to least one of the number of fluid streams.