직달일사를 이용한 잠열축열식 바닥난방 시스템이 냉방부하에 미치는 영향에 대한 검토
Effects of Phase Change Material Floor Heating Systems using Direct Solar Gain on Cooling Load
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초록
In this research, the effect of a heating system, which is powered by direct solar energy accumulated in phase change material (PCM) as heat storage material installed on the floor surface, on the cooling load was studied. Cooling load of a test building designed for this research was measured with fan coil unit and factors affecting it were also estimated. Experiments were performed with and without PCM installed on the building floor to understand the effect of the PCM on the cooling load. Additionally, to confirm the experiments results, the prediction calculation formula by average outside temperature and integrated solar radiation was composed using multivariate regression model. The results suggested that the heating system with PCM on the floor surface has the potential to shift electric power peak by radiating heat, stored during the daytime in it, at night, not increasing the total cooling load much.
Abstract
In this research, the effect of a heating system, which is powered by direct solar energy accumulated in phase change material (PCM) as heat storage material installed on the floor surface, on the cooling load was studied. Cooling load of a test building designed for this research was measured with fan coil unit and factors affecting it were also estimated. Experiments were performed with and without PCM installed on the building floor to understand the effect of the PCM on the cooling load. Additionally, to confirm the experiments results, the prediction calculation formula by average outside temperature and integrated solar radiation was composed using multivariate regression model. The results suggested that the heating system with PCM on the floor surface has the potential to shift electric power peak by radiating heat, stored during the daytime in it, at night, not increasing the total cooling load much.
참고문헌 (6)
- Nakamura Kenji, "Guideline of Plan of Solar House with Solar Air Collector and Floor Heating System", Journal of architecture, planning and environmental engineering (1999), Transactions of AIJ, Architectural Institute of Japan
- Hasegawa Fusao, "Experimental Study on Thermal Storage Floor System of Passive Solar Systems Using an Actual Test House", Journal of architecture, planning and environmental engineering (1986), Transactions of AIJ, Architectural Institute of Japan
- Kim Sookyung, "Comfortable and Energy-Saving Thermal Store Floor Heating System combined with Air Source Heat Pump using Solar Radiation（Part 1）", Summaries of technical papers of Annual Meeting Architectural Institute of Japan (2010), Architectural Institute of Japan
- Kim Sookyung, "Comfortable and Energy-Saving Thermal Store Floor Heating System combined with Air Source Heat Pump using Solar Radiation (Part8)", Summaries of technical papers of Annual Meeting Air-Conditioning and Sanitary Engineers of Japan (2010)
- Kim Sookyung, "Comfortable and Energy-Saving Thermal Store Floor Heating System combined with Air Source Heat Pump using Solar Radiation (Part12)", Summaries of technical papers of Annual Meeting Architectural Institute of Japan (2011), Architectural Institute of Japan
- Higuchi Seiroku, "Study on The Practicality of The Measurement of Envelope Heat Loss Coefficient (Part1) The Development of The Simplified Measurement Assembly of Envelope Heat Loss Coefficient and its Results", Summaries of technical papers of Annual Meeting AIJ (2005), Architectural Institute of Japan