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논문 기본 정보

자료유형
학술저널
저자정보
지형용 (한국생산기술연구원) 류슬기 (가이아에너지) 박승일 (가이아에너지) 백종현 (한국생산기술연구원)
저널정보
한국태양에너지학회 한국태양에너지학회 논문집 한국태양에너지학회 논문집 제43권 제2호
발행연도
2023.4
수록면
55 - 64 (10page)

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초록· 키워드

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Li-ion batteries are mainly used in energy storage system (ESS) systems, but they have the issue of significant battery fire incidents. Many thermal management technologies to respond to the heat load of batteries using phase change material (PCM) have been studied. We studied the thermal and power consumption properties depending on the charge/discharge and outside temperature of the ESS battery room through field survey data and an experiment. First, data for the heat pump power consumption and various temperature points of an ESS system were measured daily in the commercial operation of a 250 ㎾h PV-ESS for a year. Correlation analysis of the power consumption of a heat pump cooling and heating operation to maintain the temperature in the ESS battery room shows that the outside air temperature is the major factor. Furthermore, we conducted an experiment to determine the properties of temperature and power consumption by season at a fabricated ESS battery room with a 250 ㎾h Li-ion battery including 23℃ PCM modules. PCM supports cooling and heating to maintain the room temperature as the heat pump operation cycles on and off. The ESS with applied PCM shows a reduction of heat pump power consumption and improved thermal management according to the load of the heating battery for charging/discharging and the day/night outside air temperature. The power consumptions for heating and cooling due to the battery heat load with a charging and discharging capacity of 150 ㎾h for each season condition for the only-heat-pump and PCM-applied system operations are 5.6 ㎾h and 0.88 ㎾h for changing seasons, 16.5 ㎾h and 15.8 ㎾h for summer, and 14.3 ㎾h and 12.2 kWh for winter, and the ratios of the power reductions are 84%, 3%, and 14%, respectively.

목차

Abstract
1. 서론
2. ESS 현장 실측 및 분석
3. 실험
4. 결과
5. 결론
REFERENCES

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