Development of a CFD Primary Cooling Fan Model for Prediction of Air Flow in the Primary Cooling Zone of Line 2 at United Taconite
2008
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Development of a CFD Primary Cooling Fan Model for Prediction of Air Flow in the Primary Cooling Zone of Line 2 at United Taconite
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2008
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University of Minnesota Duluth
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Technical Report
Abstract
A CFD model of the Line 2 Primary Cooling Fan (3A) has been developed and demonstrated to
be capable of reproducing the fan curve as supplied with the fan. The effect of air temperature
and inlet damper position have been simulated and used to produce a series of flow-pressure
curves for the unit as it operates in the plant. The plant fan model appears capable of
reproducing the air survey velocity pressure profiles measured on July 11, 2006. The United
Taconite CFD Cooler Model was then used to develop a family of system resistance curves
based on cooler operating parameters. The fan and system resistance curves, when combined,
allow the fan operating point to be defined, from which flow can be predicted. Several linear
models were developed and then used to predict plant performance, using the July 11, 2006,
operating point. The predictions fall within 8% on a volume flow basis, within 6% on a mass
basis. Additional operating points are needed to demonstrate the model's predictive capability
over a flow range. Based on the results in this report, it appears possible that an on-line flow
prediction model could be developed with additional research.
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Englund, David J. (2008). Development of a CFD Primary Cooling Fan Model for Prediction of Air Flow in the Primary Cooling Zone of Line 2 at United Taconite. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/187159.
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