This paper presents the analytical heat transfer models for the vertical ground heat exchangers (GHEs) and the attendant program named “GEOSTAR” developed for use in design and simulation of vertical GHEs. The program used spatial superposition for multiple boreholes and sequential temporal superposition principles to account for time-varying loads. The Dest program for simulation of the building heating and cooling loads has been incorporated into the GEOSTAR. Coupled with the models of the heat pump and building loads, the GEOSTAR can predict time-varying heat pump energy consumption, heat transfer rates of GHEs, and other variables of interest. Finally, the program is applied to design an existing GCHP project and to simulate the system performance. The results demonstrate the usefulness of the simulation model and attendant program as a tool for designing the GCHP systems.
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How to cite this article
Cui, P., Diao, N., Yang, H. and Fang, Z. (2010). 'Simulation Modeling and Design Optimization of Vertical Ground Heat Exchanger-GEOSTAR Program'. SET Proceedings, 9, pp. 1-9. https://doi.org/10.65582/set.2010.070
