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CERTAIN DESIGN PECULIARITIES OF AUTOMOTIVE GAS TURBINES,
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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This paper examines design characteristics of automobile gas-turbine engines the engines almost always operate at considerably below rated power and over a wide rpm range and they are often shifted from mode to mode and therefore must have good pickup. A twin-shaft turbine with heat exchanger is considered, but almost everything discussed applies to any automobile gas-turbine engine. It is shown that the rated pressure increase in the compressor must ensure minimum specific fuel consumption under average operating conditions. Selection of the basic engine parameters on the basis of minimum total cost per unit of transport work is proposed as a general approach to design. Author
APPROVED FOR PUBLIC RELEASE