The GSHP that use a direct expansion method is expected to have higher performance of energy-saving than the conventional type of the GSHP. We evaluated the quantity of heat by measuring temperature, humidity and flow rate ...

Ground source heat pump (GSHP) is one of saving energy systems for air conditioning. However, the GSHP is not popular in Japan because an initial cost of the GSHP is higher than an air source heat pump. This paper describes ...