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임펠러 직경비 및 리어가이더 형상변화가 횡류홴 성능에 미치는 실험적 연구
김형섭(H.-S. Kim),김동원(D.-W. Kim),윤태석(T.-S. Yoon),박성관(S.-K. Park),김윤제(Youn J. Kim) 한국유체기계학회 2003 유체기계 연구개발 발표회 논문집 Vol.- No.-
A cross-flow fan relatively produces higher dynamic pressure at low speed because a working fluid passes through an impeller blade twice and blades have a forward curved shape. The performance of a cross-flow fan is influenced 25% by the impeller, 60% by the rearguider and the stabilizer, and 15% by the heat exchanger. At the low flow rate, there exist a rapid pressure head reduction, a noise increase and an unsteady flow against a stabilizer and a rearguider. The purpose of this study is to investigate the reciprocal relation among each parameter. Experiments are conducted to study the effects of a rearguider and a diameter ratio of impeller on the performance analysis of a cross-flow fan. Comparing with the rearguider of radial type, the Archimedes type shows excellent results for various diameter ratios.