Solar Photovoltaic Closed Fluid Loop Evaporative Tower

Abstract

A closed fluid loop HVAC system includes an air conditioner or heat pump, an evaporative cooling tower, and fluid input and output lines coupled between the cooling tower and the air conditioner/heat pump. The cooling tower has a solar-powered fluid pump and a solar-powered fan for moving an air stream to cool the fluid in the tower. The closed fluid loop can include a geothermal reservoir with a solar-powered fluid pump for pumping the fluid from the geothermal reservoir.

1 . An HVAC system comprising:
 thermal transfer means for cooling or heating a temperature-controlled space using a refrigerant;   an evaporative cooling tower for cooling a fluid in a closed fluid loop, wherein the evaporative cooling tower includes a fan for moving an air stream to cool the fluid;   a solar-powered fluid pump for pumping the closed loop fluid through the cooling tower; and   a solar-powered motor for driving the cooling tower fan;   wherein the closed fluid loop includes a fluid input line for providing fluid from the evaporative cooler to the thermal transfer means and a fluid output line for providing fluid from the thermal transfer means to the evaporative cooler;   
     
     
         2 . The HVAC system of  claim 1  wherein the means for wherein the means for cooling or heating the temperature-controlled space comprises an air conditioner. 
     
     
         3 . The HVAC system of  claim 1  wherein the means for cooling or heating a temperature-controlled space comprises a heat pump. 
     
     
         4 . The HVAC system of  claim 3  wherein the heat pump is a fluid-to-air heat pump. 
     
     
         5 . The HVAC system of  claim 1  wherein the fluid includes water. 
     
     
         6 . The HVAC system of  claim 1  wherein the closed fluid loop includes a geothermal reservoir. 
     
     
         7 . The HVAC system of  claim 6  further including a solar-powered fluid pump for pumping fluid from the geothermal reservoir.