Water mist phase change surface convective heat transfer coefficient measurement test device and method based on graphene heating film
By using graphene heating film and infrared thermal imager in the test device, the problem of measuring the convection heat transfer coefficient under the water mist phase transition conditions was solved, and the precise measurement and uniform heating of the convection heat transfer coefficient were achieved, which was suitable for the study of the air film cooling characteristics of the turbine blades of aero engines.
CN120539211APending Publication Date: 2025-08-26NORTHWESTERN POLYTECHNICAL UNIV
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Patent Information
- Application Number
- CN202510717755.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2025-08-26
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Figure CN120539211A_ABST
Abstract
The invention discloses a graphene heating film-based water mist phase change surface convective heat transfer coefficient measurement test device and a graphene heating film-based water mist phase change surface convective heat transfer coefficient measurement test method, a pressure atomization system is arranged in an experiment system to form mist spray, so that the application of cooling gas doped with liquid drops to a blade surface gas film cooling characteristic is simulated under a normal temperature condition. The graphene heating film is adopted, the mainstream temperature is changed by adjusting the direct-current power, and better attachment and heating uniformity are achieved for complex surfaces.
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