Assessment of energetic, economic and environmental performance of ground-coupled heat pumps
作者： Matteo Rivoire , Alessandro Casasso , Bruno Piga , Rajandrea Sethi
DOI: 10.3390/EN11081941
关键词: Environmental engineering 、 TRNSYS 、 Simulation software 、 Boiler (power generation) 、 Building envelope 、 Electricity 、 Hybrid system 、 Geothermal heat pump 、 Climate change 、 Environmental science
摘要: Ground-coupled heat pumps (GCHPs) have a great potential for reducing the cost and climate change impact of building heating, cooling, domestic hot water (DHW). The high installation is major barrier to their diffusion but, under certain conditions (climate, use, alternative fuels, etc.), investment can be profitable in long term. We present comprehensive modeling study on GCHPs, performed with dynamic energy simulation software TRNSYS, reproducing operating three types (residential, office, hotel), two insulation levels envelope (poor/good), six European cities. Simulation results highlight driving variables heating/cooling peak loads yearly demand, which are input assess economic performance environmental benefits GCHPs. found that, Italy, GCHPs able reduce CO 2 emissions up 216 g /year per euro spent. However, payback times still quite high, i.e., from 8 20 years. This improved by changing taxation gas electricity using hybrid systems, adding fossil-fuel boiler cover heating loads, thus overall compared full-load sized GCHP systems.
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