Evaluation of a ground source geothermal heat pump to save energy and reduce CO2 and noxious gas emissions in a pig house

Abstract A ground source geothermal heat pump (GSHP) was installed in a nursery pig house and the inlet and outlet temperature, coefficient of performance (COP), internal room temperature, energy consumption, CO 2 and noxious gas emissions and costs were then compared between a control (conventional heating) and GSHP supported room. The mean outflow temperature was higher ( P P 2 emissions were reduced by about 750.73 kW h and 405.39 kg, respectively, in the GSHP system relative to the control. Additionally, the overall energy cost was decreased by about 314.40 USD during the three week experimental period. Reduced NH 3 , H 2 S and SO 2 gas emissions were observed in the GSHP supported room relative to the control ( P