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 an intensive knowing of engine propulsion recommendations, together with the functionality of aero engines. between different serious activities,gas generators play an intensive position in electrical strength iteration, and marine propulsion for naval vessels and load ships.

In the main exhaustive quantity so far, this article examines the basis of plane propulsion: aerodynamics interwoven with thermodynamics, warmth move, and mechanical layout. With a finely centred strategy, the writer devotes each one bankruptcy to a selected engine variety, equivalent to ramjet and pulsejet, turbojet, and turbofan. Supported by way of genuine case experiences, he illustrates engine functionality below numerous working stipulations.

Part I discusses the heritage, 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 throughout the 20th century. It then strikes right into a targeted 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 structures, besides their functionality. each bankruptcy concludes with illustrative examples through a difficulties part; for larger readability, a few supply a list of vital mathematical family members.

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Extra info for Aircraft Propulsion and Gas Turbine Engines

Example text

Constant turbine inlet temperature on the compressor map . . . . . . . . . . . . . . Equilibrium point for compressor and turbine . . . . . . . . . . . . . . . . . . . . . Matching point on compressor map . . . . . . . . . . . . . . . . . . . . . . . . . . . Gas turbine with a free turbine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Temperature–entropy diagram for a gas turbine with a free turbine .

Effectiveness of different cooling methods as a function of coolant airflow ratio . . . 2 . . . . . . . . . . . . Secondary loss parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turbine characteristics: (a) mass flow versus pressure ratio and (b) efficiency versus pressure ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Blade and coolant temperature distribution along the blade height .

Breakdown of losses of radial turbine . . . . . . . . . . . . . . . . . . . . . . . . . . Effect of design speed on total-to-static efficiency . . . . . . . . . . . . . . . . . . . Geometry of radial turbine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Velocity triangles at inlet and outlet for both axial and radial turbines . . . . . . . . Cooling techniques for both of the rotor and stator of a radial inflow turbine .

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