High specific power is critical in large electric machines to power commercial aircraft. Advanced thermal management is a key enabling factor. The solution chosen for the machine presented here is an aggressive self-pumped air-cooling scheme. It allows a level of electric loading typically associated with liquid cooling. A rotor-integrated centrifugal fan is designed to pump sufficient cooling air through the machine. A detailed thermal analysis has shown that the designed mass flow rate can cool the machine. The initial flow test results using a hardware rotor prototype validated the fan performance.
Self-Pumped Air-Cooling Design for a High-Speed High-Specific-Power Motor
2018-06-01
18764230 byte
Conference paper
Electronic Resource
English
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