오리피스 차압을 이용한 덕트 누기시험 자동측정 유니트 개발

This study is to develop a duct leakage test unit with automatic measurement using differential pressure of the orifice. as results of study, compare the SMACNA standard with experiment of air flow, a developed duct leakage test unit is satisfied with a range of an error of the SMACNA standard. Though this study, we expects the effects of energy saving, high performance duct systems, developing indoor comfort in building.