http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
평행류형 열교환기를 이용한 분리형 히트파이프의 성능에 관한 연구
전성택(Sung-Taek Jeon),조진표(Jin-Pyo Cho),음현진(Hyun-Jin Eum) 한국산학기술학회 2014 한국산학기술학회 학술대회 Vol.- No.-
자동차용 에어컨의 열교환기로 사용되고 있는 평행류형 열교환기의 배기열 회수 환기장치로 적용 가능성을 알아보기 위해 냉매 충진량에 따른 열교환 효율 특성을 시험적으로 평가 하였다. 본 연구에서 사용된 히트 파이프는 환기장치에 적용이 가능하도록 분리형으로 제작되었다. 작동유체는 R22 냉매이고 유체의 충진량은 40~60(%vol)로 10(%vol) 단위로 충진 하였다. 환기량은 전면풍속을 기준으로 0. 3~1.5m/s로 0.3 m/s 간격으로 바꿔 가며 측정하였다. 시험결과 최대 효율을 가지는 냉매 충진량이 환기량에 따라 다름을 알 수 있었고, 실험 결과 분석을 통하여 분리형 히트파이프의 환기량에 따른 최적 냉매 충진량을 찾을 수 있었다.
전성택(Sung-Teck Jeon),김내현(Nae-Hyun Kim),조진표(Jin-Pyo Cho),음현진(Hyun-Jin Eum),김도균(Do-Kyun Kim) 대한설비공학회 2010 대한설비공학회 학술발표대회논문집 Vol.2010 No.11
Fan through the rotor mechanical energy applied to the gas pressure and the rate of energy change what survives of the industrial system, the fluid machine is a major component. Axial flow fan used in this study, the blade and hub are separate blades can adjust the pitch angle is constructed. Variation of pitch axial flow fan performance was confirmed by experiments investigated the effect of the length of the blade. Pitch angle of 5° to 20°~45° at intervals of 6 degrees were measured by varying the fan blade airfoil in the form of the same length 90㎜, 100㎜, 110㎜, 120㎜ axial flow fans by changing the performance; The following conclusions were drawn. The pitch angle of 35° above the blade length of all the values in the airflow and static pressure grows, so look sharp decline. According to the same pitch angle, air flow from the static pressure has a similar slope. If you have the same pitch angle, power consumption, depending on the value of airflow and gentle slopes that have a longer blade length, which shows higher power consumption. fan efficiency is maximum value was observed in 30° pitch angle 20°~30° pitch angle shows a similar result
피치각과 날개 길이 변화에 따른 축류팬의 성능 및 소음 특성에 관한 실험적 연구
전성택(Sung-Teck Jeon),김내현(Nae-Hyun Kim),조진표(Jin-Pyo Cho),음현진(Hyun-Jin Eum),김도균(Do-Kyun Kim) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
In this study, the blade and hub are separate blades can adjust the pitch angle is constructed. Variation of pitch axial flow fan performance was confirmed by experiments investigated the effect of the length of the blade. Pitch angle of 5° to 20°~45° at intervals of 6 set were measured by varying the fan blade airfoil in the form of the same length five steps(80mm, 90mm, 100mm, 110mm, 120mm) axial flow fans by changing the performance. According to the same pitch angle, air flow from the static pressure has a similar slope. Same pitch angle, power consumption, depending on the value of airflow and gentle slopes that have a longer blade length, pitch angle change was difficult to find a relationship in which each pitch, each of surging point is judged to be due to the impact of the change. Due to changes in the length of the fan blade pitch angle, which shows the noise characteristics by pitch angle increases, the noise also increases the value and the same pitch angle.