The likelihood evaluation of the heat exchanger unit model design method in the ground source heat pump system utilizing heat exchanger piles

作者: Masahito Oguma , Ayako Funabiki , Takashi Satoh , Takao Kakizaki

DOI: 10.1109/ICRERA.2013.6749840

关键词:

摘要: A ground source heat pump system (GSHP) utilizing the foundation piles as exchangers is expected to reduce initial cost compared with borehole type of conventional because exchanger not needed install anew. However, arrangement depend on floor layout a residence. Therefore, thermal performance prediction exchange has strictly conduct three-dimensional analysis for every Conducting such analysis, it heavy burden designer perform GSHP satisfaction annual heating and cooling demand. Then, two- dimensional unit model was proposed in order ease designer's burden. This characteristic originally using soil portion where available. And if seemed be design likelihood, makes load reduce. The introductory possibility GSHP, which uses pile semi-cold district our country, shown by numerical this model. It necessary show clearly how much analytical results calculated use likelihood. higher-dimensional results, same demand conditions are employed at prediction. rectangular triangle arrangements inquired evaluations. finite difference method analysis. that evaluation an average 10 - 50% likelihood higher when single layer surrounds center piles. In case multi layers surround piles, leads coordinates

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