Simulation Study on Nominal Heat Extraction of Deep Borehole Heat Exchanger
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In order to study the actual heat extraction performance of non-interference heat transfer to deep geothermal energy, the nominal heat extraction of casing-type deep borehole heat exchanger was simulated by numerical simulation method. The results show the distribution of geological conditions in each soil layer under the location of the deep borehole pipe heat exchanger affects the nominal heat extraction of the heat exchanger. By adjusting the parameters of buried pipes and reasonably selecting the location of buried pipes and other optimization measures, the casing-type deep buried pipe heat exchanger can achieve considerable nominal heat extraction and realize continuous heating in winter together with the heat pump unit.
KeywordsDeep borehole heat exchanger Numerical simulation Nominal heat extraction Geological distribution of stratum layer
The work presented in this paper is supported jointly by a grant from National Natural Science Foundation of China (No. 51808321) and a grant from Shandong Province Natural Science Foundation (No. BS2015NJ016).
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