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http://dx.doi.org/10.7836/kses.2020.40.2.001

Pre-Analysis Study on Ground Source Heat Pump System in Building with RETScreen  

Kim, Yu Jin (Dept. of Renewable Energy Engineering, University of Science and Technology)
Lee, Kwang-Seob (Dept. of Renewable Energy Engineering, University of Science and Technology)
Lee, Euy-Joon (Energy Efficiency Research Division, Korea Institute of Energy Research)
Kang, Eun-Chul (Energy Efficiency Research Division, Korea Institute of Energy Research)
Publication Information
Journal of the Korean Solar Energy Society / v.40, no.2, 2020 , pp. 1-10 More about this Journal
Abstract
Korea government published renewable energy obligation policy that public building must be supplied some part of total consumption energy (2019: 27%, 2020: 30%). RETScreen is freely available global energy tool that developed by Canadian National Energy Laboratory to quantify energy saving to compare conventional system. This program can be performed energy modeling, cost analysis, greenhouse gas emission analysis and financial analysis. In this study, GSHP (Ground source heat pump) heating and cooling system were studied for the energy deliverly and ROI (Return On Investment) in an office building. Three cases were studied according to the number of HP (Heat pump) units for the 1,000㎡ office building located in Daejeon. Results indicated that the energy delivery of the case 1 (1 HP unit) covered 57% of the office building heating and cooling energy consumption. The case 2 (2 HP units) covered 87.8% and the case 3 (3 HP units) covered 96.8% of the office building energy consumption. The ROI of the case 1 indicated 7.9 years. While 8.2 years for the case 2 and 9.7 years for the case 3.
Keywords
Renewable energy; Energy delivered; Return on investment; Ground source heat pump; Energy consumption; COP;
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  • Reference
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