• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.30 no.3
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• pp.7-14
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• 2001

현재 서울시의 일부지역의 건축물에는 5층 건축물까지 수도직결 급수방식을 시행하고 있다. 수도직결방식의 특징인 양질의 수돗물 공급과 에너지 절약차원에서 향후 6층 이상으로 직결급수를 확대 보급하기 위하여 증압펌프를 이용하는 방식에 대해 설명한다.

• Journal of the Korean Society for Geothermal and Hydrothermal Energy
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• v.11 no.3
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• pp.7-12
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• 2015

Currently water supply system with water storage is generally applied except for small building such as single-family houses, and water supply system on replacing water storage installed system by direct connecting system has been increasing because of sanitary and energy-saving aspects. The purpose of this study is to evaluate energy-saving and environmental efficiency of direct connecting booster pump system in comparison with the water storage installed system. The architectural condition of the evaluation subject is ten-story apartment house in which sixty households live. To calculate the power consumption of the pump, the volume of water supply was determined from existing data and other data, such as head, efficiency of the pump, was the value used for general application in design office. The power consumption of the water supply pump for one day was 8.5 kWh for direct connecting booster pump system, and 22.5 kWh for water storage installed system, and the former system showed energy savings of 62% compared to the latter system. Reduced power consumption also leads to reduction of $CO_2$ emission. According to the criteria presented in the Korea Energy Management Corporation, reducing the 2,410 kg $CO_2$ emission is possible per year.