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

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 solu...

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Main Authors: Shohei Kaneko, Akira Tomigashi, Takeshi Ishihara, Gaurav Shrestha, Mayumi Yoshioka, Youhei Uchida
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/13/8/1872
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author Shohei Kaneko
Akira Tomigashi
Takeshi Ishihara
Gaurav Shrestha
Mayumi Yoshioka
Youhei Uchida
author_facet Shohei Kaneko
Akira Tomigashi
Takeshi Ishihara
Gaurav Shrestha
Mayumi Yoshioka
Youhei Uchida
author_sort Shohei Kaneko
collection DOAJ
description 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.
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spelling doaj.art-0daf968b64614b888716966c9f869afe2023-11-19T21:23:08ZengMDPI AGEnergies1996-10732020-04-01138187210.3390/en13081872Proposal for a Method Predicting Suitable Areas for Installation of Ground-Source Heat Pump Systems Based on Response Surface MethodologyShohei Kaneko0Akira Tomigashi1Takeshi Ishihara2Gaurav Shrestha3Mayumi Yoshioka4Youhei Uchida5Renewable Energy Research Center, Fukushima Renewable Energy Institute, AIST, 2-2-9 Machiikedai, Koriyama, Fukushima 963-0298, JapanRenewable Energy Research Center, Fukushima Renewable Energy Institute, AIST, 2-2-9 Machiikedai, Koriyama, Fukushima 963-0298, JapanRenewable Energy Research Center, Fukushima Renewable Energy Institute, AIST, 2-2-9 Machiikedai, Koriyama, Fukushima 963-0298, JapanRenewable Energy Research Center, Fukushima Renewable Energy Institute, AIST, 2-2-9 Machiikedai, Koriyama, Fukushima 963-0298, JapanRenewable Energy Research Center, Fukushima Renewable Energy Institute, AIST, 2-2-9 Machiikedai, Koriyama, Fukushima 963-0298, JapanRenewable Energy Research Center, Fukushima Renewable Energy Institute, AIST, 2-2-9 Machiikedai, Koriyama, Fukushima 963-0298, JapanThe 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.https://www.mdpi.com/1996-1073/13/8/1872response surface methodologynumerical simulationsurrogate modelhydrogeological informationground source heat pumpheat exchange rate
spellingShingle Shohei Kaneko
Akira Tomigashi
Takeshi Ishihara
Gaurav Shrestha
Mayumi Yoshioka
Youhei Uchida
Proposal for a Method Predicting Suitable Areas for Installation of Ground-Source Heat Pump Systems Based on Response Surface Methodology
Energies
response surface methodology
numerical simulation
surrogate model
hydrogeological information
ground source heat pump
heat exchange rate
title Proposal for a Method Predicting Suitable Areas for Installation of Ground-Source Heat Pump Systems Based on Response Surface Methodology
title_full Proposal for a Method Predicting Suitable Areas for Installation of Ground-Source Heat Pump Systems Based on Response Surface Methodology
title_fullStr Proposal for a Method Predicting Suitable Areas for Installation of Ground-Source Heat Pump Systems Based on Response Surface Methodology
title_full_unstemmed Proposal for a Method Predicting Suitable Areas for Installation of Ground-Source Heat Pump Systems Based on Response Surface Methodology
title_short Proposal for a Method Predicting Suitable Areas for Installation of Ground-Source Heat Pump Systems Based on Response Surface Methodology
title_sort proposal for a method predicting suitable areas for installation of ground source heat pump systems based on response surface methodology
topic response surface methodology
numerical simulation
surrogate model
hydrogeological information
ground source heat pump
heat exchange rate
url https://www.mdpi.com/1996-1073/13/8/1872
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