Thermodynamic analysis of geothermal heat pump during the cold season

7th International Conference on Advanced Concepts in Mechanical Engineering

Dumitracu, G.^1 ; Dumencu, A.^1 ; Horbaniuc, B.^1 ; Atanasiu, M.V.^1

Automotive and Mechanical Engineering Department, Gheorghe Asachi Technical University of Iasi, Iasi, Romania^1

关键词: Cold season;    Energy-transfer rate;    Entropy balance;    Ground coupled heat pump;    Heat rate;    Thermo dynamic analysis;    Time based;    Time dependence;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/147/1/012137/pdf
DOI  :  10.1088/1757-899X/147/1/012137

来源: IOP

【 摘 要 】

The paper is analysing the performances (COP, power and, heating heat rate function of time) for a ground-coupled heat pump that is used to heat a space during winter, for a period of 180 days. The analysis purpose is to evaluate the time based changes in values of COP and, energy transfers of a geothermal heat pump, considering a scenario for the variation of the ambient temperature in time and an analytical solution for the time dependence of the soil one. The temperatures and the energy transfer rates were determined on the basis of the irreversible entropy balance equation.