DSpace university logo mark
Advanced Search
Japanese | English 

NAOSITE : Nagasaki University's Academic Output SITE > Faculty of Engineering > Bulletin > Reports of the Faculty of Engineering, Nagasaki University > Volume 23, No. 40 >


File Description SizeFormat
kogaku23_40_02.pdf1.35 MBAdobe PDFView/Open

Title: 二重反転式軸流送風機の流体力学的特性と騒音特性に関する研究(電動機支持形態および動翼間の軸間距離の影響)
Other Titles: Characteristics of Fluid Dynamics and Noise in Countor-Rotating Fan
Authors: 児玉, 好雄 / 林, 秀千人 / 田中, 清裕 / 山口, 明広
Authors (alternative): Kodama, Yoshio / Hayashi, Hidechito / Tanaka, Kiyohiro / Yamaguti, Akihiro
Issue Date: Jan-1993
Publisher: 長崎大学工学部 / Faculty of Engineering, Nagasaki University
Citation: 長崎大学工学部研究報告, 23(40), pp.9-16; 1993
Abstract: The effects of asymmetry of the electoric motor support, the distance between two impellers on the fluid dynamic characteristics and the fan noise were investigated experimentally with a counter-rotating fan. Moreover, the comparison of the fan noise and the fluid dynamic characteristics between the counter-rotating fan and a two stage rotor fan was made. It is concluded from these experimental results that the fan noise generated from symmetric support fan is lower 3 to 6 dB than that of asymmetric support fan and the fluid dynamic characteristics of the former is superior to that of the latter. The distance between two impellers is larger, the fan efficiency and the fan noise become lower. The fluid dynamic characteristics of the counter-rotating fan with 9-blades is superior to that of the two stage rotor fan, but the noise generated from the former is higher than that of the latter.
URI: http://hdl.handle.net/10069/24388
ISSN: 02860902
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:Volume 23, No. 40

Citable URI : http://hdl.handle.net/10069/24388

All items in NAOSITE are protected by copyright, with all rights reserved.


Valid XHTML 1.0! Copyright © 2006-2015 Nagasaki University Library - Feedback Powerd by DSpace