Journal of Animal Environmental Science (한국축산시설환경학회지)
- Volume 9 Issue 2
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- Pages.69-78
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- 2003
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- 1226-0274(pISSN)
Development of a Solar Powered Water Pump by Using Low Temperature Phase Change Material System Construction and Operation Analysis
저온 상변화 물질 특성을 이용한 태양열 물펌프 실용화 연구개발(II) 시스템 구성 및 작동분석
Abstract
In this study, the energy conversion equipment from the radiation energy to mechanical energy by using npentane as the operating fluid was constructed and the performance to pump the water was tested for the utilization of solar powered water pump. The equipment was designed optimally, after the theoretical analyses of the water pumping head and water quantity per cycle were done. The pentane vapour temperature in the condenser and the temperature of the outlet water from the condenser became lowered and the heat transfer rate became higher with decreasing the water inlet level to the condenser. The temperature difference between the condenser and the water tank was significant. Therefore, the distance between the water tank and condenser was recommended to be shorten and the diameter of their connecting pipe was recommended to be narrow in order to reduce the resistance of the fluid passage and improve the heat transfer rate. The amount of water pumped was 1.62.4 liters. Mass flow rate of the cooling water became lowered when the cooling water pipe was prolonged from the condenser to improve the heat transfer rate.
태양열을 동력원으로 하여 열에너지를 동력으로 변환, 물을 양수할 목적으로 저온 상변화물질인 펜탄을 작동물질로 하는 에너지변환장치를 제작하여 실험하였다. 장치는 각부의 크기를 그 기능과 상호작용 원리에 따라 논리에 맞게 최적 설계하였다. 장치의 제작 후 실험을 통하여 그 운전 특성을 분석하여 성능향상에 필요한 자료를 획득하고자 하였다. 작동물질인 펜탄을 가열하는 탱크 내부의 온도는 사이클 경과시간에 따라 약