Determination of cop maximum of cold water loop of heat pump heating system by means of numerical-graphical optimization procedure

Thermal Science

Nyers Jozsef¹  Pek Zoltan¹  Nyers Arpad² 

[1] Doctoral School of Applied Informatics and Applied Mathematics, Obuda University Budapest, Hungary;Faculty of Engineering and Information Technology, University of Pécs, Pécs, Hungary;

关键词: energy optimum;    heat pump;    numerical procedure;    well pump;    compressor;    cop of heating system;   

DOI  :  10.2298/TSCI200131104P

来源: DOAJ

【 摘 要 】

The paper presents the energy optimization of the cold water loop of the heat pump heating system using analytical-numerical procedure. The aim of the study is obtain the maximum COP of the heating system by optimum of the wall water mass-flow rate and well pump power. The objective function is the heating system’s COP. All components of the heating system: evaporator, condenser, compressor, circulation pump, and well pump are described by steady-state, lumped mathematical model. The model’s equations are coupled, non-linear, multivariable and algebraic, the solution is feasible using an iterative numerical method. The MATLAB’s program with Gauss elimination and Newton-linearization method is applied for solving the model. The obtained numerical data are presented in 3-D graphics. The optimum value of the cold-well water mass-flow rate is obtained from the graphics or by using a selection algorithm. The results of the study are the adequate mathematical model for energy optimization of the heating system, the numerical algorithm for solving the model and the ultimate goal to obtain the optimum of the power of well pump and compressor.

【 授权许可】

Unknown