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In this paper, the Taguchi method is used to evaluate the influence of five influencing parameters on the heat extraction performance of deep U-type borehole heat exchanger. The five influencing parameters are the outer diameter of heat exchanger, geotechnical thermal conductivity, geothermal gradient, specific heat capacity of soil and flow rate. The level of each factor is set according to the actual problem, and the significance of the influence of parameters is given by the method of signal-to-noise ratio. For the evaluation index of outlet water temperature T, the influence significance is A1 (S/N=30.02), E1 (S/N=30.10), B3 (S/N=29.95), C3 (S/N=29.81) and D1 (S/N=29.51). For the evaluation index of accumulated heat extraction Q, the influence significance is B3 (S/N=41.58), C3 (S/N=40.87), A3 (S/N=41.00), E3 (S/N=40.64) and D3 (S/N=40.45). © 2022 IEEE.
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Year: 2022
Page: 457-461
Language: English
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SCOPUS Cited Count: 1
ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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