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오건세(Keonje Oh),이수화(Sohwa Lee),배춘근(Chunkeun Bae),주필호(Philho Ju),김종철(Jongcheol Kim) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
A front-end coolinsl fan is desislnecl and tested in the present study. The design technique is developed using the one-dimensional inviseid flow through the fan blade, the empirical equations,<br/> and the experimental correlations. Design data for the blade can be obtained for a given flow rate and a pressure rise. A parabolic function is used to generate a sweep of the fan. Characteristics of the blade geometry are discussed between the hub and the tip. The fan is tested in the fan test unit. The measured volume flow rate at the operating point is in good agreement with that of thespecifications. Sound pressure levels of the noise are predicted with the Ffowes. Williams-Hawkings equations. Calculation results of the sound pressure level(SPL) 1m away from the Can are obtained and cpmpared with the measured data