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이대우(D.W. Lee),박명식(M. S. Park) 한국태양에너지학회 1996 한국태양에너지학회 논문집 Vol.16 No.3
건물에서 가장 널리 사용되는 열교환기중의 하나는 회전형열교환기이다. 본 연구에서는 창문일체형 회전형열교환기를 설계하기 위하여 항온항습실을 이용하여 몇가지 실험을 수행하였다. 실험결과는 이론결과와 비교되었으며, 실험에 사용된 기준조건은 다음과 같다.<br/> 급기덕트와 배기덕트에서의 송풍유량은 각각 2.64CMM과 2.62CMM이며 실내측온도는 25℃이고 실외측온도는 40℃이며 로우터매트릭스 회전속도는 7RPM이다. 본 연구에서 얻은 결과중 하나를 살펴보면 로우터매트릭스 최적회전수가 7RPM이상이 되면 유용도는 거의 일정하게 서서히 증가된다. One of the most popular heat exchangers for a building is the rotary wheel type. In this study, for the purpose of designing the heat exchange system to attach on a single unit window, some experiments were performed with the constant temperature room.<br/> The experimental results were compared with theoretical data. And the reference condition was determined as follows : air flow rate of 2.64CMM and 2.62CMM in each duct, 25℃ indoor temperature, 40℃ outdoor temperature, and 7RPM of rotor matrix.<br/> One of the results is that the proper revolution speed for rotor matrix is more than 7RPM, because by experiment, if the rotor becomes more than 7RPM, the evvectiveness shows almost constant.
공동주택 욕실샤워수전 온도편차 개선을 위한 실험적 연구
박명식(M. S. Park),이대우(D. W. Lee),류호열(H Y. Ryu),차광석(K. S. Cha),엄경섭(K. S. Eom) 대한설비공학회 2006 대한설비공학회 학술발표대회논문집 Vol.2006 No.11
Recently bathrooms became high class because of the tendency of well-beings. All the materials are supplied by brand new concept ones but functions are still backward. For example when using the shower head for taking a shower, simultaneously somebody flush water after use of WC then people in shower booth will be surprised by dint of sudden hot water supply. Wash-basin and bath head, another head in the kitchen, laundry head etc, can also affect to the shower head with hot water supply temperature. This paper describes results of recent laboratory tests on a variety of common hot water distribution piping sizes and types under a variety of pipe system type, flow rates, temperatures and environmental conditions. One of the results is that when using 15㎜ pipe system and 10mm pipe system with themostat head diameter of pipe is independent on temperature difference from shower head.