光伏光热-双源热泵系统地区适用性研究
Regional applicability of photovoltaic-thermal combined dual-source heat pump systems
摘要：
利用TRNSYS软件建立了光伏光热-双源热泵(PV/T-DSHP)系统仿真模型,选取拉萨和上海对PV/T-DSHP系统的运行特性进行了模拟分析,对不同室外气象条件(环境温度、太阳辐照度)下单一光伏-空气源热泵(PV-ASHP)系统和光伏光热-水源热泵(PV/T-WSHP)系统的性能系数进行了对比分析。结果表明:PV/T-DSHP系统在拉萨和上海的供暖季平均系统性能系数(COPs)分别为4.23和3.34;在太阳能资源一般区和丰富区,PV/T-WSHP系统较PV-ASHP系统在根据环境温度和太阳辐照度划定的最佳运行区域内运行更具性能优势。
Abstract：
In this paper, a simulation model of the photovoltaic-thermal combined dual-source heat pump (PV/T-DSHP) system is established by TRNSYS software. Lhasa and Shanghai are selected to simulate and analyse the operational characteristics of the PV/T-DSHP system. A comparative analysis is conducted on the coefficient of performance of the photovoltaic combined air-source heat pump (PV-ASHP) system and the photovoltaic-thermal combined water-source heat pump (PV/T-WSHP) system under different outdoor meteorological conditions (ambient temperature, solar irradiance). The results show that the average system coefficient of performance (COPs) during the heating season in Lhasa and Shanghai are 4.23 and 3.34, respectively. In the areas with general and abundant solar energy resources, the PV/T-WSHP system has performance advantages over the PV-ASHP system when operating in the optimal operating area determined by ambient temperature and solar irradiance.
Keywords:photovoltaic-thermal; dual-source heat pump; applicability; system coefficient of performance; ambient temperature; solar irradiance; solar energy