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Proposal for a Method Predicting Suitable Areas for Installation of Ground-Source Heat Pump Systems Based on Response Surface Methodology

Renewable Energy Research Center, Fukushima Renewable Energy Institute, AIST, 2-2-9 Machiikedai, Koriyama, Fukushima 963-0298, Japan
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Energies 2020, 13(8), 1872; https://doi.org/10.3390/en13081872
Received: 15 January 2020 / Revised: 27 March 2020 / Accepted: 8 April 2020 / Published: 11 April 2020
(This article belongs to the Section G: Geo-Energy)
The installation potential of ground-source heat pump (GSHP) systems has been studied based on the spatial interpolation of numerical simulation results using ground heat exchanger (GHE) models. This study is the first to create an estimation formula for the heat exchange rate (HER) to obtain a solution equivalent to the numerical analysis results considering the average method when supplying three-dimensional (3D) hydrogeological information that affects the HER to a two-dimensional (2D) map. It was found that the main factors affecting the HER were groundwater flow velocity, subsurface temperature, and thermal conductivity. The response surface methodology was utilized to approximate the HER using the above-mentioned three parameters. The estimated HER showed very strong agreement with that calculated by the GHE models. The application of the estimation formula to the simulation of the 3D groundwater flow and heat transport model of the Sendai Plain (Japan) better reflects the hydrogeological information of the regional model than conventional maps. The proposed method improves the spatial resolution of maps and allows for the easy creation of the HER estimation formula. View Full-Text
Keywords: response surface methodology; numerical simulation; surrogate model; hydrogeological information; ground source heat pump; heat exchange rate response surface methodology; numerical simulation; surrogate model; hydrogeological information; ground source heat pump; heat exchange rate
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MDPI and ACS Style

Kaneko, S.; Tomigashi, A.; Ishihara, T.; Shrestha, G.; Yoshioka, M.; Uchida, Y. Proposal for a Method Predicting Suitable Areas for Installation of Ground-Source Heat Pump Systems Based on Response Surface Methodology. Energies 2020, 13, 1872. https://doi.org/10.3390/en13081872

AMA Style

Kaneko S, Tomigashi A, Ishihara T, Shrestha G, Yoshioka M, Uchida Y. Proposal for a Method Predicting Suitable Areas for Installation of Ground-Source Heat Pump Systems Based on Response Surface Methodology. Energies. 2020; 13(8):1872. https://doi.org/10.3390/en13081872

Chicago/Turabian Style

Kaneko, Shohei, Akira Tomigashi, Takeshi Ishihara, Gaurav Shrestha, Mayumi Yoshioka, and Youhei Uchida. 2020. "Proposal for a Method Predicting Suitable Areas for Installation of Ground-Source Heat Pump Systems Based on Response Surface Methodology" Energies 13, no. 8: 1872. https://doi.org/10.3390/en13081872

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