Abstract
The performance design program of the water-cooled heat pump chiller which can be adapted for the ground source by spreadsheet software was developed. A single stage cycle or a cycle with a liquid gas heat exchanger can be calculated by this program, and a P-H diagram and a capacity diagram can be created by inputting heat exchange area, a compressor performance, etc. into this program. The machine design based on this program showed that a development machine could expect the improvement in efficiency of the increase of about 60% as compared with the conventional machine.
