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Some Aerodynamic Aspects of Centrifugal Fan Characteristics of an Automotive HVAC Blower
Technical Paper
2001-01-0291
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
Experimental and numerical approaches were adopted to understand flow behavior and performance of centrifugal fans in an automotive HVAC blower system. This work is directed at improving the performance of a conventional forward-curved centrifugal fan for a given small scroll casing. Recent requirements in the design of the multiblade centrifugal fan being used in automotive HVAC blowers are not only higher pressure rise and lower noise, but also better packaging in the automobile cabin. In order to meet these requirements, among various well-known design factors affecting the fan performance, principal parameters related to the rotor shape were modified and detailed flow analysis was carried out. Measurements have been made by means of a miniature five-hole probe and a pressure scanning system connected to an online data acquisition system. Computational results gave reasonably good predictions at the best efficiency operating point and verified the reliability of the present numerical approach. Based on the inspection of both measured and predicted results of the conventional fan, design improvements were carried out in an acceptable operation range, giving considerable insight into what features of flow behavior were most important.
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Authors
Citation
Kwon, E., Baek, K., Cho, N., Kim, H. et al., "Some Aerodynamic Aspects of Centrifugal Fan Characteristics of an Automotive HVAC Blower," SAE Technical Paper 2001-01-0291, 2001, https://doi.org/10.4271/2001-01-0291.Also In
SAE 2001 Transactions Journal of Passenger Cars - Electronic and Electrical Systems
Number: V110-7; Published: 2002-09-15
Number: V110-7; Published: 2002-09-15
References
- “Laboratory Methods of Testing Fans for Rating”
- Cau, G. Mandas, N. Manfrida, Nurzia, F. “Measurements of Primary and Secondary Flows in an Industrial Forward-Curved Centrifugal Fan” ASME Journal of Fluids Engineering 109 1987 353 358
- Eck, B. “Fans” 1st Pergamon Press Oxford 1973
- Morinushi, K. “The Influence of Geometric Parameters on F.C. Centrifugal Fan Noise” Journal of Vibration, Acoustics, Stress, and Reliability in Design 109 1987 227 234
- Roth, H. W. 29 1981 1 45
- Kind, R. J. Tobin, M. G. “Flow in a Centrifugal Fan of the Squirrel-Cage Type” ASME Journal of Fluids Engineering 112 1990 84 90
- Kawahashi, M. Satou, H. Fujita, Y. Yamamoto, K. “Experimental Flow Analysis of a Multiblade Fan Being Used for Automobile Air-Conditioner” FISITA World Automotive Congress Seoul, Korea 2000
- Shepherd, I. C. Lafontaine, R. F. “Measurement of Vorticity Noise Sources in a Centrifugal Fan” Proceedings of the SFA Symposium on Fan Noise Senlis, France 1992