C-52 地下水循環型空水冷ハイブリッドヒートポンプシステムの開発に関する研究 : (その7)最適運転手法の検討

概要

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For the high efficiency of heat pump, groundwater heat pump system (GWHP) uses groundwater as heat source which keeps annually stable temperature. However, it is difficult for only ground heat source to meet the heating and cooling loads with an annual balance. In order to optimize the operation method of GWHP systems, it is necessary to develop a system using both groundwater and air sources according to the condition of building loads. Furthermore, in intermediate season (for example, spring or autumn), in which heating and cooling loads are not so much, GWHP system is not more efficient than ASHP system according to conditions of temperature. In order to more efficiently use GWHP systems, it is necessary to develop a system using both groundwater and air sources according to the conditions of temperature and building loads. This paper describe about the method on the optimum operation for a long-term stable performance. The optimum control of temperature is considered in order to select more efficient heat source, and the method to switch pumping position is developed to prevent a clogging at pumping and returning wells.
社団法人空気調和・衛生工学会の論文
2009-08-18