双蒸发器连接形式对双源复合热泵系统制热性能影响研究
发布时间：2018-09-09 19:36
【摘要】：传统热泵采用单一热源(空气源或水源),虽然也有利用多热源(蒸发器)的复合热泵,但往往采取蒸发器切换的工作模式,这种工作模式难以同时利用多热源能量来达到制热目的。双蒸发器耦合的复合热泵系统通过太阳能水源蒸发器与空气源蒸发器协同工作来提高其制热性能,但不同的蒸发器连接形式(串联与并联)必然导致复合热泵系统的制热性能发生变化。本文利用热力学方法对双蒸发器采用不同连接形式的复合热泵系统的热力学性能进行了比较分析。研究结果表明:无论双蒸发器并联还是串联连接的复合热泵系统均较单一热源(空气源)的热泵的制热性能均显著提高;双蒸发器并联连接的复合热泵系统的能耗较双蒸发器串联连接的复合热泵系统的能耗明显下降,双蒸发器并联连接的复合热泵系统需要增加一台压缩机,但其节能性显著,也更具经济性优势。
[Abstract]:The traditional heat pump uses a single heat source (air source or water source), although there are also multiple heat sources (evaporator) of the composite heat pump, but often take the evaporator switching mode, It is difficult to achieve the purpose of heating by using multiple heat sources simultaneously. A hybrid heat pump system coupled with two evaporators is designed to improve the heating performance of solar water source evaporator and air source evaporator. However, different evaporator connections (series and parallel) will inevitably lead to changes in the heating performance of the composite heat pump system. In this paper, the thermodynamic performance of a composite heat pump system with two evaporators with different connection forms is compared and analyzed by thermodynamics method. The results show that the heating performance of the heat pump with double evaporators in parallel or series connection is significantly higher than that of the heat pump with a single heat source (air source). The energy consumption of the combined heat pump system connected in parallel with the double evaporator is obviously lower than that of the composite heat pump system connected in series with the double evaporator, and the energy consumption of the composite heat pump system connected in parallel with the double evaporator needs to be increased by one compressor, but its energy saving property is remarkable. Also more economical advantage.
【作者单位】： 河南科技大学制冷热泵空调技术研究所;
【基金】：国家自然科学基金项(51641604、U1504525) 河南省高等学校供热空调重点学科开放实验室研究基金(2017HAC104) 河南省高等学校重点科研项目计划(15A480001)
【分类号】：TU83
本文编号：2233369
[Abstract]:The traditional heat pump uses a single heat source (air source or water source), although there are also multiple heat sources (evaporator) of the composite heat pump, but often take the evaporator switching mode, It is difficult to achieve the purpose of heating by using multiple heat sources simultaneously. A hybrid heat pump system coupled with two evaporators is designed to improve the heating performance of solar water source evaporator and air source evaporator. However, different evaporator connections (series and parallel) will inevitably lead to changes in the heating performance of the composite heat pump system. In this paper, the thermodynamic performance of a composite heat pump system with two evaporators with different connection forms is compared and analyzed by thermodynamics method. The results show that the heating performance of the heat pump with double evaporators in parallel or series connection is significantly higher than that of the heat pump with a single heat source (air source). The energy consumption of the combined heat pump system connected in parallel with the double evaporator is obviously lower than that of the composite heat pump system connected in series with the double evaporator, and the energy consumption of the composite heat pump system connected in parallel with the double evaporator needs to be increased by one compressor, but its energy saving property is remarkable. Also more economical advantage.
【作者单位】： 河南科技大学制冷热泵空调技术研究所;
【基金】：国家自然科学基金项(51641604、U1504525) 河南省高等学校供热空调重点学科开放实验室研究基金(2017HAC104) 河南省高等学校重点科研项目计划(15A480001)
【分类号】：TU83
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