Honeywell International Inc.

Alex Morando

Sunil K Menon

David G Elpern

Girija Parthasarathy

Ru-Li Kung

Tom Iles

Jon E Schryver

Scott J Goldberg

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.

Method for predicting air cycle machine turbine ice formation and shedding and journal bearing wear

An emergency power system comprising a plurality of solid propellant gas generators each having a gas outlet in fluid communication with a turbine wheel rotationally disposed within a gas turbine housing, the turbine wheel being in rotational communication with an electric generator input shaft, a fluid pump input shaft, or both. A method of producing power from such an emergency power system is also disclosed.

Solid propellant gas generators in power systems

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Rowland Heights, CA, United States of America

Alex Morando