Abstract
Photovoltaic-thermal (PV/T) technique is applied to air source heat pump (ASHP) heating system in severe cold region, which can achieve high efficient heating of ASHP in low-temperature environment and maximize the utilization of renewable energy. The using limitations and common problems of ASHP heating system in severe cold region is studied in this paper. Based on the solar radiation heat transfer mechanism and characteristic of air--heat transfer media, PV/T--ASHP integrated heating system is developed. TRNSYS transient simulation software was used to study the integrated heating system. Through the simulation analysis, the outlet temperature of PV/T collector can reach 76.6°C and the average COP of ASHP unit reaches 4.1, which improves the heating efficiency of ASHP and provides a new idea for the future heating mode in severe cold region.
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