Feasibility study and numerical simulation of a Ground Source Heat Pump Plant, applied to a residential building

U. Desideri (1) , N. Sorbi (1) , L. Arcioni (1) , D. Leonardi (1)

1 Department of Industrial Engineering University of Perugia Via G. Duranti 1A/4- 06125 Perugia - Italy

To evaluate the efficiency of ground source heat pump (GSHP), an application is studied in a residential building divided in two independent apartments blocks. The numerical results are produced by using the software tool TRNSYS 16. The results include the trends of the thermo-climatic variables and a comparison between conventional and geothermal systems analysing operation and capital costs. The GSHP studied in this paper produces a thermal power output of 29 kW in winter and a cooling power output of 26 kW during summer time. The numerical simulations have highlighted that with such a system, the GSHP has a winter coefficient of performance of 4.9, and a warm season coefficient of performance which reaches 2.3. The simulations show that the best plant configuration consists of a winter heating GSHP system and a summer free-cooling bypass. The thermo-climatic variables inside the building provide good comfort conditions.

Mots clés: Ground source heat pump; renewable energy

Domaines: Thermique [physics.class-ph]; Thermique [physics.class-ph]

U. Desideri, N. Sorbi, L. Arcioni, D. Leonardi. Feasibility study and numerical simulation of a Ground Source Heat Pump Plant, applied to a residential building. Applied Thermal Engineering, 2011, 31 (16), pp.3500. ⟨10.1016/j.applthermaleng.2011.07.003⟩. ⟨hal-00789871⟩