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열선 질량유량계를 이용하여 측정한 열전달율이 큰 액체의 온도 특성에 관한 실험적 연구
윤준용(JoonYong Yoon),김효섭(HyoSeop Kim),김형준(HyoungJune Kim),성낙원(Nakwon Sung),이성규(SungKyu Lee) 한국유체기계학회 2007 유체기계 연구개발 발표회 논문집 Vol.- No.-
In this study, we classify the difference of heat transfer coefficient regarding to the temperature using thermal mass flowmeter. In using gas, the experiment condition regarding to temperature was generally ignored due to its characteristic of properties. In this experiment we focused on using water which properties(density, specific heat) are relatively high than gas to figure out the characteristic changes in terms of various conditions of temperature. The experiment was carried out at a certain range(20℃, 50℃ and 80℃). By changing the velocity of water at each temperature, the heat transfer coefficient was measured at 8자형 sensor which have separated RTD and heater. Throughout this study, we can analyze the characteristic curve between fluid and temperature and obtain specific experimental equation.