Method for predicting air cycle machine turbine ice formation and shedding and journal bearing wear
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United States of America Patent
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Mar 10, 2009
Grant Date -
Oct 18, 2007
app pub date -
Apr 18, 2006
filing date -
Apr 18, 2006
priority date (Note) -
Expired
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Abstract
Methods and apparatus are provided for predicting ice formation on and shedding from blades of an air cycle machine (“ACM”) turbine. The method comprises generating operational condition data representative of ACM turbine operating conditions using a software model of the ACM, determining an amount of ice formation on the blades of the ACM turbine, and determining an amount of ice shed from the blades of the ACM turbine. The apparatus comprises means for generating operational condition data representative of ACM turbine operating conditions using a software model of the ACM, means for determining an amount of ice formation on the blades of the ACM turbine, and means for determining an amount of ice shed from the blades of the ACM turbine. In some embodiments, the means and apparatus may also involve predicting ACM wear, based at least in part on the predicted ice formation and shedding.
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