Geothermal system and tubing therefor

Abstract

A geothermal heat pump has a pump. A tubing conveys a fluid from the pump and adapted to transfer energy between the fluid and the ambient environment as the fluid travels through the tubing. The tubing has a high thermal conductivity.

1 . A geothermal heat system having a pump, and a tubing of high thermal conductivity in fluid communication with the pump for conveying a fluid from the pump and adapted to transfer energy between the fluid and an ambient environment as the fluid travels through the tubing. 
     
     
         2 . The geothermal heat pump of  claim 1 , wherein the ambient environment is the ground. 
     
     
         3 . The geothermal heat pump of  claim 1 , wherein the tubing has a first section and a second section, the first section having a thermal conductivity substantially greater than the second section. 
     
     
         4 . The geothermal heat pump of  claim 3 , wherein the tubing includes a return, the second section being downstream of the return.