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장성철(S. C. Jang),서경호(G. H. Seo),박태수(T. S. Park),이재웅(J. W. Lee),최경관(G K. Choi),이용우(Y. W. Lee) 한국생산제조학회 2010 한국공작기계학회 추계학술대회논문집 Vol.2010 No.-
In this study, the development of collector system for high efficiency exhausted. The aim of this study is to remove crack on a ventilation device at the suction part of plants factory, and the main point is making optimum configuration by improving an existing collector system Finally, the improved high efficiency exhausted was designed.
황상윤(S. Y. Hwang),서경호(K. H. Seo),김병찬(B. C. Kim),김경식(K. S. Kim),장학수(H. S. Tyan.) 한국유체기계학회 2000 유체기계 연구개발 발표회 논문집 Vol.- No.-
A five path ultrasonic and/or magnetic flowmeter were installed after valve. Five path ultrasonic flowmeter were tested to obtain it's performance in a water flow standard system and magnetic flowmeter. It's varied with straight pipe length(nD), install direction and valve position.<br/> All the results are summerized. The multi-path flowmeters(MUF) showed up to ±0.5% at a 2, 4, 8, 15D spacing : the MUF was significnatly better than magnetic flowmeter at disturbed flow conditions.