Journal of the Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회논문집)

Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회)
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Energy Performance and Cost Assessment for Implementing GroundSource Heat Pump System in Military Building

군사시설 내 지열 히트펌프 시스템 적용에 따른 에너지 성능과 비용 절감 효과 평가

  • Byonghu Sohn (Department of Building Energy Research, KICT) ;
  • Kyung Joo Cho (Department of Building Energy Research, KICT) ;
  • Dong Woo Cho (Department of Building Energy Research, KICT)
  • 손병후 (한국건설기술연구원 건축에너지연구소) ;
  • 조경주 (한국건설기술연구원 건축에너지연구소) ;
  • 조동우 (한국건설기술연구원 건축에너지연구소)
  • Received : 2022.11.03
  • Accepted : 2022.11.29
  • Published : 2022.12.01
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Abstract

The Ministry of National Defense of the Republic of Korea is showing a lot of interest in net zero-energy buildings (NZEBs) to reduce energy consumption of military facilities and to promote green growth policy in military sector. The application of building passive technologies and renewable energies is essential to achieving NZEBs. This paper analyzed energy performance and energy cost on the conventional heating and cooling system (baseline scenario) and three different alternative scenarios (ALT 1, ALT 2 and ALT 3) applied in a hypothetical military building. A building modeling and simulation software (DesignBuilder V6.1) with EnergyPlus calculation engine was used to calculate the energy consumption for each scenario. Overall, when the GSHPs are applied to both space airconditioning and domestic hot water (DHW) production, Alt-2 and Alt-3, the amount of energy consumption for target building can be greatly reduced. In addition, when the building envelope performance is increased like Alt-3, the energy consumption can be further reduced. The annual energy cost analysis showed that the baseline was approximately 161 million KRW, while Alt-3 was approximately 33 million KRW. Therefore, it was analyzed that the initial construction cost increase could be recovered within about 6.7 years for ALT 3. The results of this study can help decision-makers to determine the optimal strategy for implementing GSHP systems in military buildings through energy performance and initial construction cost assessment.

Keywords

Acknowledgement

본 논문의 내용은 한국건설기술연구원 공공수탁사업(20210535-001) 결과입니다.

References

  1. Ministry of Environment (ME), 2020, Press release: Future blueprint for responding to the climate crisis, 2050 carbon-neutral vision confirmed, Ministry of Environment (ME), Seoul.
  2. Ministry of Environment (ME), 2020, 2030 Nationally Determined Contribution (NDC), Ministry of Environment (ME), Seoul.
  3. Ministry of Land, Infrastructure and Transport (MOLIT), 2020, Press release: Diffusion of zero energy architecture, Ministry of Land, Infrastructure and Transport (MOLIT), Seoul.
  4. Ministry of National Defense (MND), 2018, Press release: Defense Reform 2.0, Ministry of National Defense (MND), Seoul.
  5. Ministry of Land, Infrastructure and Transport (MOLIT), 2019, 2nd Basic plan for green buildings, Ministry of Land, Infrastructure and Transport (MOLIT), Seoul.
  6. US Department of the Army, 2011, US Army sustainability report 2010, US Department of the Army, Washington.
  7. The British Army, 2021, Project prometheus and the power of solar, The British Army, London.
  8. Cabeza, L. and Chafer, M., 2020, Technological options and strategies towards zero energy buildings contributing to climate change mitigation: A systematic review, Energy and Buildings, Vol. 219, pp. 1-46.
  9. Atam, E. and Helsen, L., 2016, Ground-coupled heat pumps: Part 1-Literature review and research challenges in modeling and optimal control, Renewable and Sustainable Energy Reviews, Vol. 54, pp. 1653-1667. https://doi.org/10.1016/j.rser.2015.10.007
  10. Javadi, H., Ajarostaghi, S., Rosen, M. A., and Pourfallah, M., 2019, Performance of ground heat exchangers: A comprehensive review of recent advances, Energy, Vol. 178, pp. 207-233. https://doi.org/10.1016/j.energy.2019.04.094
  11. Luo, J., Luo, Z., Xie, J., Xia, D., Huang, W., Shao, H., Xiang, W., and Rohn, J., 2018, Investigation of shallow geothermal potentials for different types of ground source heat pump systems (GSHP) of Wuhan city in China, Renewable Energy, Vol. 118, pp. 230-244. https://doi.org/10.1016/j.renene.2017.11.017
  12. Sohn, B., Lim, H., and Kang, S., 2021, Comparison of energy performance between ground-source heat pump system and variable refrigerant flow(VRF) systems using simulation, Transactions of the Koreaa Society for Geothermal and Hydrothermal Energy (KSGHE), Vol. 17, No. 3, pp. 30-40.
  13. Jeong, K., Hong, T., Ban, C., Koo, C., and Park, H. S., 2015, Life cycle economic and environmental assessment for establishing the optimal implementation strategy of rooftop photovoltaic system in military facility, Journal of Cleaner Production, Vol. 104, pp. 315-327. https://doi.org/10.1016/j.jclepro.2015.05.066
  14. DIA (Defense Installations Agency)/MND (Ministry of National Defense), 2021, Defense.Military Facility Criteria(DFMC) 1-40-00, DIA/MND
  15. DesignBuilder Software, 2019, DesignBuiler V6 Simulation Documentation, DesignBuilder Software Ltd.
  16. Cabeza, L. F. and Chager, M., 2020, Technological optioins and strategies towards zero energy buildings contributing to climate change mitigation: A systematic review, Energy and Buildings, Vol. 219, 110009.
  17. Alazazmeh, A and Asi, M., 2021, Commercial building retrofitting: Assessment of improvements in energy performance and indoor air quality, Case Studies in Thermal Engineering, Vol. 26, 100946.
  18. Hashempour, N., Taherkhani, R., and Mahdikhani, M., 2020, Energy performance optimization of existing buildings: A literature review, Sustainable Cities and Society, Vol. 54, 101967.
  19. US Department of Energy (DOE), 2019, EenrgyPlus V8.9 Simulation, US DOE.
  20. Korea Public Procurement Service, http://pcae.g2b.go.kr:8044/pbs/psa/psa0000/index.do
  21. Korea Public Procurement Service, https://www.g2b.go.kr:8092/sm/ma/mn/SMMAMnF.do
  22. Korea Energy Agency, https://zeb.energy.or.kr/BC/BC00/BC00_01_001.do
  23. G.Enone Energy, 2022, http://www.genone.co.kr/main/main.html