热泵热水器系统的方案比较与分析

介绍了直流式地源热泵热水器系统和容积式地源热泵热水器系统的工作原理及优缺点;以天津某别墅热泵热水器系统的设计计算为例,对两者以及容积式空气源热泵热水器系统在性能系数、初投资和运行费用等方面进行了比较。比较结果说明了,在相同工况下,直流式地源热泵热水器系统相比于容积式地源热泵热水器系统来说,性能系数较大、耗电量较低,但其运行费用和初投资较高;在同时满足户主热水需求条件下,容积式空气源热泵热水器系统相比于容积式地源热泵热水器系统来说,初投资较低,但其能效系数也较低,耗能较多,运行费用较多,经济性较差。本文为热泵热水器系统的选择、设计和优化提供了参考,且指出了地源热泵热水器系统广阔的应用前景。

Scheme Comparison and Analysis of Heat Pump Water Heater System

The principles,advantages and disadvantages of the storage-type and direct-type ground source heat pump water heater system were introduced separately in this paper.And the two systems and the storage-type air source heat pump water heater system were compared with each other in some aspects such as the coefficient of performance,the initial investment and the operating costs by taking the design and calculation of the heat pump hot water system of a villa in Tianjin as an example.The results show that the direct-type ground source heat pump water heater system has a larger coefficient of performance and less power consumption but more operating costs and more initial investment than the storage-type ground source heat pump water heater system,and the storage-type air source heat pump water heater system has less initial investment but a lower coefficient of performance,more power consumption,more operating costs and less economic than the storage-type ground source heat pump water heater system.In conclusion,the reference about the selection,design and optimization of the heat pump water heater system was provided,and the wide prospects of the ground source heat pump water heater system were also pointed out in this paper.