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TECHNICAL PAPERS

A Systematic Experimental Approach to Cross-Flow Fan Design

[+] Author and Article Information
A. Lazzaretto, A. Toffolo, A. D. Martegani

Department of Mechanical Engineering, University of Padova, Via Venezia, 1, 35131 Padova, Italy

J. Fluids Eng 125(4), 684-693 (Aug 27, 2003) (10 pages) doi:10.1115/1.1593710 History: Received January 14, 2002; Revised January 31, 2003; Online August 27, 2003
Copyright © 2003 by ASME
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References

Laakso, H., 1957, “Querstromventilatoren mit Druckkennverten ψ>4,” Heizung-Luftung-Haustechnik, 8 (12).
Tramposch, H., 1964, “Cross-Flow Fan,” ASME Paper No. 64-WA/FE-25.
Ilberg,  H., and Sadeh,  W. Z., 1965–1966, “Flow Theory and Performance of Tangential Fans,” Proc. Inst. Mech. Eng., 180 , Part 1(19).
Porter, A. M., and Markland, E., 1970, “A Study of the Cross Flow Fan,” J. Mech. Eng. Sci., 12 (6).
Preszler, L., and Lajos, T., 1972, “Experiments for the Development of the Tangential Flow Fan,” Proc. of the 4th Conference on Fluid Machinery, Akademiai Kiado, Budapest, pp. 1071–1082.
Yamafuji, K., 1975, “Studies on the Flow of Cross-Flow Impellers—1st Report, Experimental Study,” Bull. JSME, 18 (123).
Murata, S., and Nishihara, K., 1976, “An Experimental Study of Cross Flow—1st Report, Effects of Housing Geometry on the Fan Performance,” Bull. JSME, 19 (129).
Murata, S., and Nishihara, K., 1976, “An Experimental Study of Cross Flow—2nd Report, Movements of Eccentric Vortex inside Impeller,” Bull. JSME, 19 (129).
Allen, D. J., 1982, “The Effect of Rotor and Casing Design on Cross-Flow Fan Performance,” “International Conference on Fan Design and Applications,” Sept. 7–9, Guilford, England, Paper No. J1.
Tuckey, P. R., Holgate, M. J., and Clayton, B. R., 1982, “Performance and Aerodynamics of a Cross Flow Fan,” “International Conference on Fan Design and Applications,” Sept. 7–9, Guilford, England, Paper No. J3.
Lazzaretto,  A., 2003, “A Criterion to Define Cross-Flow Fan Design Parameters,” ASME J. Fluids Eng., 125, pp. 680–683.
Bush, E. H., 1972, “Crossflow Fans—History and Recent Developments,” Conference on Fan Technology and Practice, Apr 18–19, London.
Clayton,  B. R., 1975, “A Review and Appraisal of Crossflow Fans,” Building Services Engineer, 42, pp. 230–247.
UNI 10531, 1995, (in Italian) “Ventilatori Industriali—Metodi di prova e Condizioni di Accettazione,” Milan, (in Italian).
ISO 5801, 1993, “Industrial fans—Performance Testing using Standardized Airways.”
Lazzarotto,  L., Lazzaretto,  A., Macor,  A., and Martegani,  A. D., 2001, “On Cross-Flow Fan Similarity: Effects of Casing Shape,” ASME J. Fluids Eng., 123, pp. 1–9.
Eck B., U.S. Patent 2 942 773.
Eck B., 1973, Fans, Pergamon Press, Oxford, UK.

Figures

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Schematic of the test facility
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Geometric variables of the casing walls
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Test program 1: “tree” of tests
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Test program 2: “tree” of tests
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Test program 3: “tree” of tests
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Total pressure coefficient and total efficiency obtained using a small radial width rear wall (θ*=359 deg) and a thin vortex wall (s/D2=0.13) having hd/D2=0.45, under variation of the radial clearance (ev/D2) between vortex wall and impeller
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Results of test program 1: casing shapes featuring thin vortex wall
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Results of test program 2: casing shapes featuring modular vortex wall (constant inflow arc)
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Results of test program 2: casing shapes featuring modular vortex wall (constant discharge section)
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Results of test program 3: different impellers matched with thin vortex wall casings
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Results of test program 3: best performing casing configurations

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