Hi Jeff and thanks for your reply . What I want to achieve is a ground source heat pump that is using the heat for vaporization from a smaller air to water heat pump instead of boreholes or ground loops . The small air to water heat pump will feed a water tank and from the water tank the water which will have 50-60 °F ( i will use a mixing valve to set the desired flow temperature ) will go to the ground source heat pump heat exchanger ( evaporator ) . For the ground source heat pump I want to use R134a because of the higher temperatures achieved by this refrigerant .
|