Market requests for higher performance fans and legal requirements to meet minimum efficiency grades drive industrial fan designers to study or re-think stall control solutions. In tunnel and metro fans this means to study how anti-stall rings work and to provide strategy to improve their efficiency. Here we present a numerical study validated against available experiments on the fitting of an anti-stall ring on an axial fan for tunnel and metro operations. The study synthetize the effects of the anti-stall ring with an actuator disk, strongly reducing the computational load required and validating a new methodology. Such approach can be implemented to easily derive fan performance with different geometries of the anti-stall ring plenum as well as its fins.

Modelling of axial fan and anti-stall ring on a virtual test rig for air performance evaluation / BONANNI, TOMMASO; CORSINI, Alessandro; DELIBRA, GIOVANNI; VOLPONI, DAVID; Sheard, Anthony G.. - CD-ROM. - 1(2016). ((Intervento presentato al convegno ASME Turbo Expo: Turbine Technical Conference and Exposition tenutosi a Seoul; South Korea [10.1115/GT2016-56862].

Modelling of axial fan and anti-stall ring on a virtual test rig for air performance evaluation

BONANNI, TOMMASO;CORSINI, Alessandro;DELIBRA, GIOVANNI;VOLPONI, DAVID;
2016

Abstract

Market requests for higher performance fans and legal requirements to meet minimum efficiency grades drive industrial fan designers to study or re-think stall control solutions. In tunnel and metro fans this means to study how anti-stall rings work and to provide strategy to improve their efficiency. Here we present a numerical study validated against available experiments on the fitting of an anti-stall ring on an axial fan for tunnel and metro operations. The study synthetize the effects of the anti-stall ring with an actuator disk, strongly reducing the computational load required and validating a new methodology. Such approach can be implemented to easily derive fan performance with different geometries of the anti-stall ring plenum as well as its fins.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/855241
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