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http://dx.doi.org/10.5659/JAIK_PD.2014.30.5.237

3-Dimensional Numerical Modeling of a Single Ground Heat Exchanger for Low-Energy Houses  

Kim, Eui-Jong (프랑스 국립 과학 연구소(CNRS))
Publication Information
Journal of the Architectural Institute of Korea Planning & Design / v.30, no.5, 2014 , pp. 237-244 More about this Journal
Abstract
This paper aims at developing a three-dimensional numerical model of a single ground heat exchanger that would be enough to handle the heating and cooling loads of low-energy houses. As a reduced model (Linear Aggregation Method) previously developed is not yet sufficiently efficient in computation, some simplification schemes are newly proposed for the coupling of sub-zone models that are obtained from domain sub-structuring, which was mandatory to use the reduction method. The proposed model is compared to a reference model and the well-known existing model DST. Results from the 3-D numerical model implemented in Dymola are in a good agreement with the reference models, within a range of $0.2^{\circ}C$ in difference, and the computation efficiency is much enhanced with the proposed simplifications.
Keywords
Ground Heat Exchanger; 3-Dimensional Numerical Model; Model Reduction;
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