Comparison of Thermal Performance of Various Systems in Thermal Energy Supply Facilities for Small-scale Facilities

Abstract

This paper compares the performances of 5kW-class “Air source heat pump system (ASHP) and Ground source heat pump system (GSHP)” at the same time and the same condition at semi-cold region. GSHP is more efficient than ASHP, but there is little evidence. As a result, the total energy consumption efficiency of ASHP was 29% to 40% higher than the that of GSHP. Therefore, 5kW-class heat pumps should be improved the efficiency.