The Brayton cycle is composed of the following four processes____________________?
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Answer: D. two isentropics and two constant pres-sures
Explanation
The Brayton cycle is composed of two reversible adiabatic and two constant-pressure processes. Isentropic compression and expansion form the work-producing and work-consuming stages. Heat addition and rejection occur at constant pressure in combustion chambers and heat exchangers. George Brayton developed this thermodynamic cycle used primarily in gas turbine engines. The cycle forms the theoretical basis for modern jet propulsion and power generation. Compressors and turbines handle the isentropic processes within the engine assembly.
Aviation jet engines operate on continuous-flow Brayton cycle thermodynamic principles. Power generation gas turbines utilize recuperated Brayton cycles to improve thermal efficiency. Aerospace engineers optimize compressor pressure ratios to maximize thrust and output. Option A describes the Carnot cycle with isothermal instead of isobaric processes. Option B describes the Otto cycle featuring constant volume heat addition and rejection. Option C describes mixed cycles like the dual combustion cycle rather than Brayton.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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