Aircraft Propulsion and Gas Turbine Engines by Ahmed F. El-Sayed

By Ahmed F. El-Sayed

The escalating use of airplane within the 21st century calls for a radical knowing of engine propulsion strategies, together with the functionality of aero engines. between different serious activities,gas generators play an intensive function in electrical energy new release, and marine propulsion for naval vessels and load ships.

In the main exhaustive quantity up to now, this article examines the basis of plane propulsion: aerodynamics interwoven with thermodynamics, warmth move, and mechanical layout. With a finely concentrated procedure, the writer devotes every one bankruptcy to a selected engine sort, reminiscent of ramjet and pulsejet, turbojet, and turbofan. Supported through genuine case reports, he illustrates engine functionality less than quite a few working stipulations.

Part I discusses the background, classifications, and function of air respiring engines. starting with Leonardo and carrying on with directly to the emergence of the jet age and past, this part chronicles innovations up in the course of the 20th century. It then strikes right into a particular dialogue of alternative engine varieties, together with pulsejet, ramjet, unmarried- and multi-spool turbojet, and turbofan in either subsonic and supersonic functions.

The writer discusses Vertical Take Off and touchdown airplane, and gives a accomplished exam of hypersonic scramjet and rapid ramjet engines. He additionally analyzes the different sorts of business gasoline generators having single-and multi-spool with intercoolers, regenerators, and reheaters.

Part II investigates the layout of rotating compressors and generators, and non-rotating parts, intakes, combustion chambers, and nozzles for all smooth jet propulsion and fuel turbine engine platforms, in addition to their functionality. each bankruptcy concludes with illustrative examples through a difficulties part; for larger readability, a few supply a list of significant mathematical kin.

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Additional resources for Aircraft Propulsion and Gas Turbine Engines

Example text

Matching point on compressor map . . . . . . . . . . . . . . . . . . . . . . . . . . . Gas turbine with a free turbine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Temperature–entropy diagram for a gas turbine with a free turbine . . . . . . . . . . Flow chart for gas generator matching . . . . . . . . . . . . . . . . . . . . . . . . . Map of free turbine . . . . .

Erosion of axial compressor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Erosion of ninth-stage HPC of JT9D . . . . . . . . . . . . . . . . . . . . . . . . . . Erosion of axial fan during takeoff (mg/gm) . . . . . . . . . . . . . . . . . . . . . . Erosion of axial fan during cruise (mg/gm) . . . . . . . . . . . . . . . . . . . . . . . Erosion of the fan of a high-bypass ratio turbofan engine .

Development of high-pressure turbine cooling. . . . . . . . . . . . . . . . . . . . . Cooled high-pressure turbine stage . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Forced convection of a turbine blade . . . . . . . . . . . . . . . . . . . . . . . . . . Effectiveness of different cooling methods as a function of coolant airflow ratio . . . 2 . . . . . .

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