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http://dx.doi.org/10.17664/ksgee.2017.13.2.009

Study on the Capacity Design Tool Development for Open-loop Ground Heat Exchanger  

Ryu, Hyung-Kyou (Korea Research Institute of Mechanical Facilities Industry)
Choi, Seung-Hyuck (Korea Research Institute of Mechanical Facilities Industry)
Yun, Hi-won (Korea Research Institute of Mechanical Facilities Industry)
Gim, Yu-Seung (Korea Research Institute of Mechanical Facilities Industry)
Publication Information
Journal of the Korean Society for Geothermal and Hydrothermal Energy / v.13, no.2, 2017 , pp. 9-15 More about this Journal
Abstract
When applying geothermal systems in cities such as seoul where high density development prevails, the selection of geothermal system capable of obtaining a large capacity in the limited grounds is necessary. In this study, an easy-to-use design tool is developed in the form of spreadsheet by applying the calculation theory of existing closed-loop vertical ground heat exchanger that can be used in the early design stage of the open-loop ground heat exchanger. By only using the maximum cooling and heating load, it is possible to calculate optimal design open-loop ground heat exchanger. Further research is needed, we are plan to improve the program considering the heat loss of groundwater flowing in the inner casing, G-Function for Open-Loop, and verification by applying actual projects.
Keywords
Open-Loop Ground Heat Exchanger; Close-Loop Ground Heat Exchanger; Annual Heating & Cooling Load; Polynomal Function; G-function; Capacity Design Tool;
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