Utilization of Artificial Lake as Heat Source-sink for Open-loop Surface Water Heat Pump System in Hunan

Utilization of Artificial Lake as Heat Source-sink for Open-loop Surface Water Heat Pump System in Hunan

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Rich surface water resources in south China can be utilized as heat source-sink for heat pump systems.A district heating and cooling system that utilizes lake water 12n/1200 wella as heat source-sink of heat pumps has been constructed in Xiangtan,a city in Hunan province in south China.The lake water temperature distribution during continuous operation was simulated before the construction.

The entering water temperature was monitored everyday.COP values of the operation igloo white system and ASHP units at different source and sink temperatures were determined based on a series of measurements.The field test results show that the surface water heat pump system could offer advantages over air source heat pumps,such as higher energy efficiency and improved reliability.