Thursday August 29, 2019 from 08:30 to 10:10
Experimental measurements and techno-economic analysis of a compact DHW heat pump powered by photovoltaic energy
Pedro G. VICENTE-QUILES1, Damian CRESPI-LLORENS1, Francisco J. AGUILAR-VALERO1.
1Universidad Miguel Hernández, Elche, Spain
Heat pumps will be the most widely used system for the production of domestic hot water (DHW) in dwellings in the coming years (at least in Europe). The total decarbonization of Europe's energy system by 2050 is currently producing changes in the sector, where historic boiler companies have started to market heat pumps.
This study analyzes the performance of a compact heat pump for DHW production, which is simultaneously powered by PV panels (470 Wp) and the grid. The system (HP + PV) is designed to consume the energy produced by the PV panels in two ways: to drive the compressor or to power the electrical heater. The seasonal SPF of the analyzed system is around 9, which means that 1 kWh of grid electricity produces 9 kWh of thermal energy for DHW.
The techno-economic analysis shows the benefits of this system when it is compared to a DHW heat pump without PV and a standard boiler.