Abstract
River water source heat pump (RWSHP) systems are considered to be one of the most promising technologies for energy saving and sustainable development. In order to evaluate the actual operation effect of RWSHP systems in hot summer and cold winter area in China, the heating and cooling performance of a RWSHP system for an energy station in shanghai is presented in this paper. The monitoring data was acquired from the building energy management system (BEMS). The variation characteristics of river water temperature were analyzed. It was found that there was a remarkable linear relationship between the temperature of river-water and ambient air temperature and the obtained correlation can be used to calculate the river-water temperatures throughout the year. Meanwhile, the power consumption of heat pump units, the power consumption of various water circulating pumps and distribution energy consumption were analyzed. Results indicated that in winter heating mode, the average COP of heat pump units and RWSHP system were about 7.4 and 5.2, respectively. In summer cooling mode, the average COP of heat pump units and RWSHP system were about 6.5 and 2.6, respectively. The results can provide references for other practical project applications in this field.
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