Performance Analysis of Multi-energy Complementary Heating System Based on Photo-voltaic/thermal collectors and Heat Pumps

Abstract

Multi-energy complementary heating technology can improve the instability and the operating efficiency of the heating system. The representative solar coupled heat pump system is widely used in northern residents for heating, which is of great significance to improve the northern haze environment and energy saving and emission reduction. In order to further improve the level of clean energy application and obtain an efficient and stable multi-energy complementary heating system, this article combined the characteristics of solar photovoltaic thermal collectors (Photo-voltaic/thermal, PV/T) and heat pumps. The PV/T-based multi-energy complementary heating system was proposed, the system was a PV/T coupled water source heat pump and ground source heat pump. The PV/T collector applied the waste heat recovery of photovoltaic panels to the evaporation end of the water source heat pump, and the ground source heat pump served as an auxiliary heat source for heating. Taking an office building as an example, the system design selection was carried out, and the system operation experiment platform and operation simulation model were built to optimize the connection mode, operation plan and design selection of the system, which provided a reference for the feasibility study of the system in the northern cold regions.