THERMAL SCIENCE

International Scientific Journal

LOW-PRESSURE REVERSIBLE AXIAL FAN DESIGNED WITH DIFFERENT SPECIFIC WORK OF ELEMENTARY STAGES

ABSTRACT
Low-pressure axial fan impellers designed according to the principle of equal specific work of all elementary stages have blades whose profile near the fan hub is under a significantly larger inclination angle than at the impeller periphery. In order to minimize the spatial curvature of the fan blades and the fan hub length, impeller blades of low-pressure axial fans can be designed with different specific work of elementary stages, so that the specific work of elementary stages is smaller at the hub than at the periphery. This paper presents the operating characteristics of a low-pressure reversible axial fan with straight blade profiles, designed with different specific work of elementary stages. The fan was tested on a standard test rig, with air intake loading on the suction side of the fan.
KEYWORDS
PAPER SUBMITTED: 2012-05-03
PAPER REVISED: 2012-07-04
PAPER ACCEPTED: 2012-07-12
DOI REFERENCE: https://doi.org/10.2298/TSCI120503195B
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2012, VOLUME 16, ISSUE Supplement 2, PAGES [S605 - S615]
REFERENCES
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© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence