ME300Lecture40

ME300Lecture40 - Lecture 40. Brayton Cycle Animation The...

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40.1 Lecture 40. Brayton Cycle Animation » The ideal cycle for gas turbine engines
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40.2 Lecture 40: Brayton Cycle Open Brayton cycle Closed Brayton cycle
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40.3 Continue Brayton Cycle V p 1 2 4 3 q H q L s T 1 2 4 3 s 1 =s 2 s 3 =s 4 q H q L V 2 V 3 V 4 V 1 Ideal Brayton Cycle
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40.4 Continue Brayton Cycle Continue ideal Brayton cycle: Description Process Closed cycle Open cycle 1 2 Isentropic compression Isentropic compression 2 3 Constant pressure Heat librated from fuel heat addition during combustion process 3 4 Isentropic expansion Isentropic expansion 4 1 Constant pressure Enthalpy difference heat rejection between exhaust products and intake air
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40.5 Continue Brayton Cycle Comparison with vapor power cycle: » lighter and more compact (air vs. water density) high power output-to-weight ratio » lower pressure ratios, higher volume based on gas vs. liquid compression » lower efficiencies based on non-isothermal heat addition and heat rejection Typical applications:
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This document was uploaded on 04/23/2011.

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ME300Lecture40 - Lecture 40. Brayton Cycle Animation The...

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