Aqueous heat pump methods and systems

Abstract

Devices, methods, systems, and computer-readable media for an aqueous carbon dioxide (CO 2 ) heat pump are described herein. One or more embodiments include a system comprising a compressor to lower a first CO 2 pressure of a first chamber and increase a second CO 2 pressure of a second chamber, a liquid pump to remove a liquid from the first chamber and provide liquid to the second chamber, wherein the liquid is a CO 2 aqueous solution, and a heat exchanger to alter a temperature of the liquid when the liquid is removed from the first chamber and provided to the second chamber.

What is claimed: 
     
         1 .  1  A system for an aqueous heat pump, comprising:
 a compressor to lower a first pressure of a first chamber and increase a second pressure of a second chamber; 
 a liquid pump to remove a liquid from the first chamber and provide liquid to the second chamber, wherein the liquid is capable of absorbing and desorbing a gas; and 
 a heat exchanger to alter a temperature of the liquid when the liquid is removed from the first chamber and provided to the second chamber. 
 
     
     
         2 . The system of  claim 1 , wherein the liquid from the second chamber is removed by the increased second pressure and provided to the first chamber. 
     
     
         3 . The system of  claim 2 , wherein the heat exchanger alters a temperature of the liquid when the liquid is removed from the second chamber and provided to the first chamber. 
     
     
         4 . The system of  claim 1 , wherein the heat exchanger is a counter-flow energy recovery heat exchanger. 
     
     
         5 . The system of  claim 1 , wherein the first pressure is less than half of the second pressure. 
     
     
         6 . The system of  claim 1 , comprising a recuperation motor to generate power from liquid flow from the second chamber to the first chamber. 
     
     
         7 . The system of  claim 6 , wherein the liquid pump and the recuperation motor are mechanically linked. 
     
     
         8 . A system for an aqueous carbon dioxide (CO 2 ) heat pump, comprising:
 a first chamber comprising a first CO 2  pressure and a second chamber comprising a second CO 2  pressure;   a liquid pump to remove a liquid from the first chamber and provide liquid to the second chamber, wherein the liquid is able to reversibly absorb and desorb CO 2 ;   a recuperation motor to generate power from liquid flow from the second chamber to the first chamber; and   a counter-flow energy recovery heat exchanger coupled to the liquid pump and the recuperation motor to alter a temperature of the liquid.   
     
     
         9 . The system of  claim 8 , wherein the first CO 2  pressure is approximately 3 BAR and the second CO 2  pressure is approximately 8 BAR. 
     
     
         10 . The system of  claim 8 , wherein the first chamber is a desorption chamber and the second chamber is an absorption chamber. 
     
     
         11 . The system of  claim 8 , wherein the liquid is a heterogeneous refrigerant comprising CO 2 . 
     
     
         12 . The system of  claim 8 , comprising a first dispersion system coupled to the first chamber to increase a surface area of the liquid when entering the first chamber. 
     
     
         13 . The system of  claim 12 , comprising a second dispersion system coupled to the second chamber to increase a surface area of the liquid when entering the second chamber. 
     
     
         14 . The system of  claim 8 , comprising:
 a first heat exchanger coupled to the first chamber to receive the liquid and provide a cooling mechanism; and   a second heat exchanger coupled to the second chamber to receive the liquid and provide a heating mechanism.   
     
     
         15 . A system for an aqueous carbon dioxide (CO 2 ) heat pump, comprising:
 a compressor to lower a pressure of a desorption chamber and increase pressure of an absorption chamber;   a liquid pump coupled to a liquid reservoir within the desorption chamber and coupled to a dispersion system within the absorption chamber; and   a counter-flow energy recovery heat exchanger coupled to the liquid reservoir within the desorption chamber and coupled to a liquid reservoir within the absorption chamber.   
     
     
         16 . The method of  claim 15 , wherein the liquid pump provides aqueous CO 2  from the liquid reservoir within the desorption chamber to the dispersion system within the absorption chamber. 
     
     
         17 . The method of  claim 16 , wherein the compressor provides a difference in pressure between the desorption chamber and the absorption chamber to provide aqueous CO 2  from the liquid reservoir within the absorption chamber to a dispersion system within the desorption chamber. 
     
     
         18 . The method of  claim 15 , comprising a recuperation motor mechanically coupled to the liquid pump to provide aqueous CO 2  from the liquid reservoir within the desorption chamber to a dispersion system within the absorption chamber. 
     
     
         19 . The method of  claim 15 , wherein the counter-flow energy recovery heat exchanger alters a temperature of the liquid from the liquid reservoir within the desorption chamber from approximately 10 degrees C. to approximately 35 degrees C. prior to being provided to the dispersion system within the absorption chamber. 
     
     
         20 . The method of  claim 19 , wherein the counter-flow energy recovery heat exchanger alters a temperature of the liquid from the liquid reservoir within the absorption chamber from approximately 35 degrees C. to approximately 10 degrees C. prior to being provided to a dispersion system within the desorption chamber.