Development of a High Efficiency In-Line Tube Fan Using CFD

NCUTIR > College of Engineering > Department of Refrigeration & Air Conditioning > 【冷凍空調與能源系】期刊論文 > Item 987654321/5903

Please use this identifier to cite or link to this item: http://ir.lib.ncut.edu.tw/handle/987654321/5903

Title:	Development of a High Efficiency In-Line Tube Fan Using CFD
Authors:	Yen, Hung-Cheng Hsu, Wen-Syang Huang, Jeng-Min Lu, Chi-Wen Hsu, Chin-Nan
Contributors:	圖書館
Keywords:	in-line tube fan deswirl vane CFD performance testing
Date:	2015-04-01
Issue Date:	2016-10-18 15:17:56 (UTC+8)
Abstract:	An in-line tube fan with design flow rate 1 m(3)/s, static pressure 1030 Pa, rotation speed 3450 rpm, and specific speed 2.1 was investigated. Inverse design method was used to design deswirl vane while CFD to analyze its flow field. Results showed that although the efficiency of the axial straight flat plate is poor, it remained better than that of the vaneless type. The efficiency of deswirl vane was much higher than the previous two. However, when the casing-impeller ratio was lower than 1.25, completely recovering tangential velocity would result in large recirculation flow near outlet of deswirl vane. When the casing-impeller ratio increased to 1.33, the recirculation flow and pressure loss were obviously reduced. When the casing-impeller ratio increased to 1.46, the deswirl vane almost completely recovered tangential velocity, and pressure loss was further reduced. Static pressure and efficiency at operating point were 10% and 6% higher than the casing-impeller ratio 1.33.
Relation:	INTERNATIONAL JOURNAL OF TURBO & JET-ENGINES, 32, 105-115
Appears in Collections:	[Department of Refrigeration & Air Conditioning] 【冷凍空調與能源系】期刊論文

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