doi:
UDK: 621.438

ASSESSMENT OF THE NECESSARY RELATIVE AIR FLOW RATE FOR COOLING TURBINE FLOW PARTS IN THE EARLY STAGES OF GAS TURBINE PLANT DESIGN

Погодин Ю. М., Ерохин С. К., Тимофеев Д. Д.
Article language: английский

Annotation

The model for preliminary prediction the required air flow rate for cooling the blade row was created based on the approximation of the results of experimental data of heat transfer in blades with convective and convective-film cooling schemes. For the convective-film cooling scheme, a reasonable extrapolation of the experimental dependencies to the region of large values cooling efficiency parameter was carried out using the approximate mathematical model of J. Horlock. Examples of calculation of cycle parameters have been carried out, demonstrating the importance of correctly taking into account the influence of air flow on cooling at an early stage of designing a gas turbine plant. Keywords: gas turbine unit, calculation of cycle parameters, air flow rate for cooling, mathematical model, calculation examples

Bibliography

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