논문집

원문다운로드
논문명 수평 직관 알루미늄 플렉시블 덕트의 정압손실 예측을 위한 기초연구/Fundamental Study on Prediction of Static Pressure Loss in Horizontal Aluminum Flexible Ducts
저자명 손유라(Son, Yu-Ra) ; 양정훈(Yang, Jeong-Hoon)
발행사 한국건축친환경설비학회
수록사항 한국건축친환경설비학회 논문집  , Vol.14 No.2
페이지 시작페이지(195) 총페이지(13)
ISSN 1976-6483
주제분류 환경및설비
주제어 알루미늄 플렉시블 덕트; 정압손실; 마찰계수; 회귀분석 Aluminum flexible duct; Static pressure loss; Friction factor; Regression analysis
요약2 The purpose of this study is to provide basic information such as static pressure loss and friction factor and P-Q curves of aluminum flexible ducts, which are mainly used in ventilation systems. The aluminum flexible duct is then applied to the horizontal tube. Through the experiment, the effects of diameter, compression ratio, pitch interval, duct internal wind velocity, and Reynolds number of aluminium flexible ducts are measured and reviewed using statistical methods. The maximum static pressure loss was 138 Pa in a 100 mm duct, 62 Pa in 125 mm and 30 Pa in 150 mm. In addition, similar static pressure losses occurred at 25% and 50% of the duct compression ratio. The friction factor occurred up to 0.5 at 75% compression at 1 m duct with a diameter of 100 mm. Eight prediction models were derived by stepwise regression. All prediction models had R2 of 0.8 or higher, but a number of values in response to the actual test were found to exceed 20 percent of the error. For the Gaussian process regression, the prediction model 6 was also very responsive with the determinant R2 0.99 and the RMSE 2.603.
소장처 한국건축친환경설비학회