Demonstration of a Domestic Photovoltaic-Thermal (pvt)-Heat Pump System, Performance Simulation, and Economic Analysis for Different Climates
Abstract
In recent years, there has been a growing interest in heat pumps coupled to photovoltaic thermal (PVT) collectors for covering the space heating and domestic hot water demand in buildings. However, most existing systems have not been designed for the specific heat demand of the climate that they are located, and limited system comparisons have been conducted in terms of performance and economy in different climates. In this study, the performance of a domestic PVT heat pump system installed in Denmark was demonstrated. A TRNSYS model of the system was created and validated with experimental data from the demonstration system and later was used for performing a sensitivity analysis on the collector area, for achieving the best performance and economy, using multiple indicators. Three different systems were investigated in three locations, namely a PVT water-source heat pump system, a photovoltaic (PV) air-source heat pump system, and an air-source heat pump system, in Denmark, Austria, and Greece.