[논문]지열원 및 수열원 비율에 따른 복합열원 히트펌프시스템 성능 평가 연구

박시훈; 고유진; 민준기

doi:10.17664/ksgee.2021.17.2.011

지열원 및 수열원 비율에 따른 복합열원 히트펌프시스템 성능 평가 연구
A Study on the Performance Evaluation of Combined Heat Pump System according to the Ratio of Ground Heat Source and Water Heat Source 원문보기

한국지열에너지학회논문집 = Transactions of the Korea Society of Geothermal Energy Engineers, v.17 no.2, 2021년, pp.11 - 19

박시훈 (경희대학교 기계공학과) , 고유진 (경희대학교 기계공학과) , 민준기 (경희대학교 기계공학과)

Abstract ▼ AI-Helper

In this study, combined heat source heat pump system was implemented with 4 single heat source heat pumps each applied with a geothermal source and a water source. Five cases (Case1~Case5) were configured to conduct a performance comparison and analysis of the combined heat source heat pump system. First of all, as a result of analyzing the heat source, the case when 4 ground heat sources were applied (Case1) showed a uniform EST(Entering Source Temperature) distribution throughout the year since it is less affected by outside air compared to the case when 4 water heat sources were applied (Case5). In both winter and summer, the ground heat source maintained higher EST than the water heat source. Therefore, the system with high ratio of geothermal sources is advantageous for heating, and with high ratio of water heat sources is advantageous for cooling.

주제어

표/그림 (10)

표 Table 1. Simulation input conditions
그림 Fig. 1. Standard office modeling
표 Table 2. Specification of source
그림 Fig. 2. Annual heat pump circulating water temperature
표 Table 3. Specification of components
그림 Fig. 3. Schematic diagram of combined heat source heat pump system
표 Table 4. Number of heat pumps and number of boreholes by case
그림 Fig. 4. Configuration of simulation
그림 Fig. 5. Monthly average heat pump total power consumption
그림 Fig. 6. Average COP of 4 heat pumps by monthly average case

참고문헌 (8)

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Bae, H. H., Lee, D. H., Lee, S., Kim, B., and Ahn, Y. C., A Study on the Performance Improvement of a Simultaneous Heating and Cooling Water Source Heat Pump System by Controlling of the Refrigerant Flow Rate in an Outdoor Unit, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 25, No. 3, pp. 131-136.
Sohn, B., Design of Ground-Coupled Heat Pump (GCHP) System and Analysis of Ground Source Temperature Variation for School Building, Korea Society of Geothermal Energy Engineers, Vol. 16, No. 1, pp. 17-25.
Ko, Y., Park, S., and Min, J., Comparison of Heat Pump Performance and Energy Consumption Patterns according to Heat Sources for Optimal Control of Multi-Source Heat Pumps, Korea Society of Geothermal Energy Engineers, Vol. 16, No. 4, pp. 31-38.
Cho, Y. U., Woo, T., Chung, K. S., and Kim, Y., Study on Energy Consumption of Air-source, Ground-source and Dual-source Heat Pump during Intermediate Season, Korea Society of Geothermal Energy Engineers, Vol. 9, No. 4, pp. 1-7.
Sohn, B., Lee, D. Y., Choi, J. H., and Min, K. C., Performance Analysis of Cooling Tower-Assisted Hybrid Ground-Coupled Heat Pump (HGCHP) System, Trans. Korean Soc. Mech. Eng. C, Vol. 4, No. 1, pp. 19-26.
Klein, S. A., 2019, TRNSYS18 Base Manual, KESTech, Kocaeli, Turkey.
Ministry of Land, Infrastructure and Transport, 2017, Standard of Building Saving, MLIT criteria 2017-881.

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