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A TRNSYS-Based Thermal Response Test Parameter Estimation Method

Xuedan Zhang 1, Yiqiang Jiang 1, Yang Yao 1, and Shiming Deng 2
1. Department of Building Thermal Energy Engineering, Harbin Institute of Technology, Harbin, China
2. Department of Building Services Engineering, The Hong Kong Polytechnic University, Hong Kong, China

Abstract—Thermal Response Test (TRT) has become a very popular method of estimating ground thermal properties for ground-coupled heat pump systems. This technique relies on the fact that required best-fit parameters can be identified by inverse modeling of heat transfer equations with the help of optimization algorithms. In this paper, a TRNSYS-based model that can automatically realize TRT parameter estimation is proposed and validated. Besides, the method is applied to a case study, and different optimization algorithms are employed and analyzed. Finally, the results calculated by the TRNSYS-based method and that of conventional methods are compared. It shows that the deviations of the estimated parameters between different models are obvious, which should be paid great attention by researchers and engineers.

Index Terms—Ground Heat Exchanger (GHE), TRNSYS, parameter estimation, optimization algorithm

Cite: Xuedan Zhang, Yiqiang Jiang, Yang Yao, and Shiming Deng, "A TRNSYS-Based Thermal Response Test Parameter Estimation Method," International Journal of Electrical Energy, Vol. 4, No. 1, pp. 28-31, March 2016. doi: 10.18178/ijoee.4.1.28-31

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