|発明の名称||HEAT PUMP SYSTEM|
PROBLEM TO BE SOLVED: To provide a heat pump system capable of improving heat exchange performance by utilizing underground-heat while suppressing costs of the system as a whole, by utilizing the underground-heat by additionally assembling a heat exchanging part with underground-heat, in a heat pump utilizing air heat.
SOLUTION: An underground-heat exchanger 16 capable of utilizing underground-heat, is disposed in addition to devices of an indoor-side heat exchanger 11, an outdoor-side heat exchanger 12, a compressor 13, an expander 14 and a flow channel switch valve 15 for realizing a heat pump cycle and a refrigeration cycle utilizing air heat, and a state that the underground-heat exchanger is used for condensing a heat medium or lowering a temperature, and a state that it is used for evaporating the heat medium or increasing the temperature, can be switched, thus heat absorbing performance and heat radiating performance in the indoor-side heat exchanger are improved by introduction of the underground-heat in air cooling or heating using the indoor-side heat exchanger. As the underground-heat exchanger can be easily added to a heat pump, the heat pump system capable of utilizing the underground-heat can be introduced at lower costs.
- 国立大学法人佐賀大学 産学・地域連携機構 知財戦略・技術移転部門
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