An Economic Analysis on Geothermal Heating and Cooling System for Residential Cluster Homes

Sunghan Jo; Hyun Jae Kim

doi:10.32390/ksmer.2019.56.3.251

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2019 Vol.56, Issue 3 Preview Page Next Page

Research Paper

An Economic Analysis on Geothermal Heating and Cooling System for Residential Cluster Homes 집단거주지에 적용한 지열냉난방시스템의 경제성 분석

30 June 2019. pp. 251-259

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Abstract

To solve global warming, a national policy has been adopted to reduce carbon dioxide emissions under the Paris Agreement. Research is being done with this intention by constructing new apartment buildings utilizing geothermal energy, which is a renewable energy. Life-cycle cost analysis was applied to an apartment in Gamjeong-Dong, Busan, by comparing the geothermal heating and cooling system and the alternative system consisting of electric air conditioner and boilers using LNG. The results show that the geothermal heating and cooling system was more economical, with cost savings of 1,103,347 thousand Won compared with the alternative system over the life cycle of 30 years. The initial investment cost was also recovered within 11 years.

Keywords

Geothermal heating and Cooling system

Initial investment cost

Energy consumption cost

Operating and maintenance cost

Replacement cost

우리나라도 지구온난화를 해결하기 위해 신기후체제 하에서 이산화탄소 배출을 저감하는 정책을 채택하고 있다. 그 일환으로 아파트를 새로 건축할 때 신재생에너지 중 지열에너지를 활용하는 방안을 연구하고 있다. 부산 감정동에 건설한 아파트를 대상으로 지열냉난방시스템과 전기사용 에어컨과 도시가스 사용 보일러의 대안시스템과의 비교를 통하여 경제성분석을 하였다. 분석은 생애주기비용모형을 활용하였다. 분석결과에 따르면 지열냉난방시스템이 경제성을 갖춘 것으로 분석되었다. 30년의 생애주기기간동안 지열냉난방시스템이 대안시스템보다 1,103,347천원 적게 지출되는 것으로 분석되었다. 초기투자비용은 11년이 되면 회수되는 것으로 분석되었다.

키워드

지열냉난방시스템

초기투자비용

에너지비용

유지관리비용

설비교체비용

References

Cho, J.H. and Nam, Y.J., 2017. Analysis of the initial cost payback period on the open-loop geothermal system using two wells. Korean J. Air-Conditioning and Refrigeration Engineering, 29, 119-126.

Cho, J.S. and Son, B.H., 2009. A study on the economical efficiency of heating and cooling system in school building using ground source heat pump. Korea J. Geothermal Energy, 5(4), 16-22.

Choi, C.H., 2012. A study on the economic analysis of cooling-heating system using ground source heat in a public library. J. the Korean Solar Energy Society, 32, 56-66.

10.7836/kses.2012.32.1.056

Kim, J.S., Song, S.H., Jeong, G.C., and Cha, J.H., 2015. Analysis of economic feasibility and reductions of carbon dioxide emission of geothermal heating and cooling system using groundwater, The J. of Engineering Geology, 25(4), 599-612.

10.9720/kseg.2015.4.599

Ministry of Strategy and Finance, General guidelines for conducting preliminary feasibility studies, Guidelines for the Ministry of Strategy and Finance, 2018,/10 p.

Park S.R., 2006. Analysis on the Installation of Geothermal System, Facility/Air Conditioning Cooling Hygiene, Korea Association of Facility Technology, March, 2006, 89-97.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 56
No :3
Pages :251-259
Received Date : 2019-04-04
Revised Date : 2019-05-15
Accepted Date : 2019-06-21
DOI :https://doi.org/10.32390/ksmer.2019.56.3.251

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

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