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TECHNICAL PAPERS

On Cross-Flow Fan Similarity: Effects of Casing Shape

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

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

A. Macor

Department of Management and Engineering, University of Padova, Stradella s. Nicola, 3 36100 Vicenza, Italy

J. Fluids Eng 123(3), 523-531 (Mar 15, 2001) (9 pages) doi:10.1115/1.1379033 History: Received November 28, 2000; Revised March 15, 2001
Copyright © 2001 by ASME
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References

Ilberg, H., and Sadeh, W. Z., 1965–66, “Flow Theory and Performance of Tangential Fans,” Proc. Instn. Mech. Engrs., Vol. 180, Part 1, No 19.
Eck, B. 1973, Fans, Pergamon Press, New York.
Lajos, T., and Preszler, L., 1973, “On the Cross Flow Fan Theory. Part 1: Types of Fans, Operating Principles, Stream Configuration, Velocity Field (In German),” Heizung-Lüftung-Haustechnik, 24 Nr. 5.
Lajos, T., and Preszler, L., 1973, “On the Cross Flow Fan Theory. Part 2: Calculation of the Blade Circulation and the Flow Field, and Comparison of the Experimental Results With the Theory,” (in German). Heizung-Lüftung-Haustechnik, 24 Nr. 6.
Lajos, T., 1975, “Investigation of the Flow Characteristics in the Impeller of the Tangential Fan,” Proceedings of Sixth Conference on Fluid Machinery, Budapest.
Tanaka, S., and Murata, S., 1994, “Scale Effect in Cross-Flow Fans (Effects of Fan Dimension on Performance Curves),” Bull. JSME, Series B, 37 , No. 4.
Tanaka, S., and Murata, S., 1995, “Scale Effect in Cross-Flow Fans (Effects of Fan Dimension on Flow Details and the Universal Representation on Performances),” Bull. JSME, Series B, 38 , No. 3.
Porter, A. M., and Markland, E., 1970, “A Study of the Cross Flow Fan,” J. Mech. Eng. Sci., 12 , No. 6.
Murata, S. I., and Nishihara, K., 1976, “An Experimental Study of Cross Flow-1st Report, Effects of Housing Geometry on the Fan Performance,” Bull. JSME, 19 , No. 129.
Murata, S. I., and Nishihara, K., 1976, “An Experimental Study of Cross Flow-2st Report, Movements of Eccentric Vortex inside Impeller,” Bull. JSME, 19 , No. 129.
Martegani, A. D, Macor, A., and Lazzaretto, A., 1995, “Theory and Experimental Investigation on Cross Flow Fans. Part II: Testing of a Model (In Italian),” Proceedings of 50° Congresso Nazionale ATI, Vol. 2, pp. 1696–1706, Saint Vincent, 11–15 September. SGEditoriali-Padova.
Lazzaretto, A., Macor, A., Martegani, A. D., and Martina, V., 1997, “Experimental Optimization of the Casing of a Cross Flow Fan. (In Italian),” Proceedings of 52° Convegno Nazionale ATI, Cernobbio (CO), 22–26 September. SGEditoriali-Padova.
UNI 10531, 1995, “Industrial Fans-Performance Testing and Acceptance Terms,” (in Italian), UNI (Italian National Center for Standardization), Milano.
ISO 5801, 1993, “Industrial Fans-Performance Testing using Standardized Airways,” International Organization for Standardization.
Martegani, A. D., Navarro, G., Macor, A., Lazzaretto, A., Masi, M., Antonello, M., and De Lorenzi, S., 1999, “Experimental and numerical analyses of a cross flow fan (In Italian),” Proceedings of 54° Congresso Nazionale ATI, Vol. 2, pp. 1409–1423, L’Aquila, 14–17 September. SGEditoriali-Padova.

Figures

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Schematic of the test rig
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Detail of the impeller blade
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Geometric configuration of the casing walls
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Casing rear wall R1, having θ* =359 deg in Eq. (1)
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Casing rear wall R2c, having θ* =191 deg in Eq. (1) and curved discharge duct
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Casing rear wall R2r, having θ* =191 deg in Eq. (1) and rectilinear discharge duct
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Casing rear wall R3c, having θ* =139 deg in Eq. (1) and curved discharge duct
Grahic Jump Location
Casing rear wall R3r, having θ=139 deg in Eq. (1) and rectilinear discharge duct

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