For a Brayton heat engine with a regenerator (heat exchange), calculate th and Wnet (net power output)
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Question:
For a Brayton heat engine with a regenerator (heat exchange), calculate ηth and Wnet (net power output) for the case.
Case: Investigate the effect of heat exchanger efficiency by varying it from 0 to 80% in steps of 20%. For this case keep Tmax as 1400 K and vary pressure ratio from 4 to 24 for each ηHEX value. [only do the initial case of inputs for equation layout].
Given info
• P1 = 100 kPa, T1 = 0°C, ηcomp = 85%, ηturb = 90% (standard case)
• Neglect kinetic and potential energy changes.
• Working fluid is air. Assume it to be an ideal gas with constant specific heats.
• Compressor and turbine are adiabatic.
• The mass flow rate through the engine is 10 kg/s.
Related Book For
Thermodynamics An Engineering Approach
ISBN: 978-0073398174
8th edition
Authors: Yunus A. Cengel, Michael A. Boles
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