Geochemical study and fluid flow simulation of a groundwater system in Toyama and Joganji alluvial fans, central Japan, and assessment of suitability for heat utilization

Hiromichi Hirata; Seung Youl Yoo; Kaname Iwatake; Taichi Tebakari; Nagisa Okakita; Jing Zhang; Akira Ueda

doi:10.1016/j.geothermics.2021.102073

Geochemical study and fluid flow simulation of a groundwater system in Toyama and Joganji alluvial fans, central Japan, and assessment of suitability for heat utilization

Hiromichi Hirata, Seung Youl Yoo, Kaname Iwatake, Taichi Tebakari, Nagisa Okakita, Jing Zhang, Akira Ueda^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

For testing the potential and increased usage of a ground source heat pump system (GSHP), chemical and isotopic (D, ¹⁸O) compositions of 50 shallow groundwater and six river water samples in Joganji and Toyama alluvial fans, central Japan, were analyzed to examine their water quality and origins with the simulation of the fluid flow mode using a 3-D state flow (transient) model. Results showed that groundwater was mainly a mixture of the Joganji River water and precipitation and moved from east to west. The groundwater flow velocity was estimated at 4–10 m/day, and the residence time could reach 10 years. The saturation indices of scaling components (deposit on heat exchanger) such as Fe and CaCO₃ were discussed for the safe use of the GSHP.

Original language	English
Article number	102073
Journal	Geothermics
Volume	93
DOIs	https://doi.org/10.1016/j.geothermics.2021.102073
State	Published - 2021/06

Keywords

Geochemical
Ground source heat pump system (GSHP)
Groundwater
Isotope
Water flow

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Geotechnical Engineering and Engineering Geology
Geology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.geothermics.2021.102073

Cite this

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title = "Geochemical study and fluid flow simulation of a groundwater system in Toyama and Joganji alluvial fans, central Japan, and assessment of suitability for heat utilization",

abstract = "For testing the potential and increased usage of a ground source heat pump system (GSHP), chemical and isotopic (D, 18O) compositions of 50 shallow groundwater and six river water samples in Joganji and Toyama alluvial fans, central Japan, were analyzed to examine their water quality and origins with the simulation of the fluid flow mode using a 3-D state flow (transient) model. Results showed that groundwater was mainly a mixture of the Joganji River water and precipitation and moved from east to west. The groundwater flow velocity was estimated at 4–10 m/day, and the residence time could reach 10 years. The saturation indices of scaling components (deposit on heat exchanger) such as Fe and CaCO3 were discussed for the safe use of the GSHP.",

keywords = "Geochemical, Ground source heat pump system (GSHP), Groundwater, Isotope, Water flow",

author = "Hiromichi Hirata and Yoo, {Seung Youl} and Kaname Iwatake and Taichi Tebakari and Nagisa Okakita and Jing Zhang and Akira Ueda",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2021",

month = jun,

doi = "10.1016/j.geothermics.2021.102073",

language = "英語",

volume = "93",

journal = "Geothermics",

issn = "0375-6505",

publisher = "Elsevier Ltd.",

}

TY - JOUR

T1 - Geochemical study and fluid flow simulation of a groundwater system in Toyama and Joganji alluvial fans, central Japan, and assessment of suitability for heat utilization

AU - Hirata, Hiromichi

AU - Yoo, Seung Youl

AU - Iwatake, Kaname

AU - Tebakari, Taichi

AU - Okakita, Nagisa

AU - Zhang, Jing

AU - Ueda, Akira

PY - 2021/6

Y1 - 2021/6

N2 - For testing the potential and increased usage of a ground source heat pump system (GSHP), chemical and isotopic (D, 18O) compositions of 50 shallow groundwater and six river water samples in Joganji and Toyama alluvial fans, central Japan, were analyzed to examine their water quality and origins with the simulation of the fluid flow mode using a 3-D state flow (transient) model. Results showed that groundwater was mainly a mixture of the Joganji River water and precipitation and moved from east to west. The groundwater flow velocity was estimated at 4–10 m/day, and the residence time could reach 10 years. The saturation indices of scaling components (deposit on heat exchanger) such as Fe and CaCO3 were discussed for the safe use of the GSHP.

AB - For testing the potential and increased usage of a ground source heat pump system (GSHP), chemical and isotopic (D, 18O) compositions of 50 shallow groundwater and six river water samples in Joganji and Toyama alluvial fans, central Japan, were analyzed to examine their water quality and origins with the simulation of the fluid flow mode using a 3-D state flow (transient) model. Results showed that groundwater was mainly a mixture of the Joganji River water and precipitation and moved from east to west. The groundwater flow velocity was estimated at 4–10 m/day, and the residence time could reach 10 years. The saturation indices of scaling components (deposit on heat exchanger) such as Fe and CaCO3 were discussed for the safe use of the GSHP.

KW - Geochemical

KW - Ground source heat pump system (GSHP)

KW - Groundwater

KW - Isotope

KW - Water flow

UR - http://www.scopus.com/inward/record.url?scp=85101615246&partnerID=8YFLogxK

U2 - 10.1016/j.geothermics.2021.102073

DO - 10.1016/j.geothermics.2021.102073

M3 - 学術論文

AN - SCOPUS:85101615246

SN - 0375-6505

VL - 93

JO - Geothermics

JF - Geothermics

M1 - 102073

ER -

Geochemical study and fluid flow simulation of a groundwater system in Toyama and Joganji alluvial fans, central Japan, and assessment of suitability for heat utilization

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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