Mathematical Modeling and Simulation Application of GSHP Unit

doi:10.16182/j.issn1004731x.joss.201803018

Abstract

Abstract: For the purpose of building a simulation platform of GSHP system, a semi empirical mathematical model of GSHP unit adopting multiple nonlinear regression method was established based on the mechanism knowledge and the sample data of GSHP unit. A GSHP unit module was developed, namely Type223, and its accuracy was verified by simulation analysis. A TRNSYS simulation platform of GSHP system was built by Type223 module. The operation characteristics of variable flow on ground source side of GSHP system was studied under variable frequency control. The results showed that, the energy consumption of GSHP unit is increased compared with the constant flow rate system, but the energy consumption of circle pump is greatly reduced. The energy saving rate is 6.47% during the whole cooling period.

Key words: GSHP, mathematical model, multiple nonlinear regression, variable frequency control, energy simulation

CLC Number:

Tk52
TP15

Li Hui, Yang Shaogang, Liu Fengying. Mathematical Modeling and Simulation Application of GSHP Unit[J]. Journal of System Simulation, 2018, 30(3): 914-921.

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