Repeat Prob. 9-109 for a regenerator effectiveness of 70 percent. Prob. 9-109 Air enters the compressor of

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Repeat Prob. 9-109 for a regenerator effectiveness of 70 percent.
Prob. 9-109
Air enters the compressor of a regenerative gas-turbine engine at 310 K and 100 kPa, where it is compressed to 900 kPa and 650 K. The regenerator has an effectiveness of 80 percent, and the air enters the turbine at 1400 K. For a turbine efficiency of 90 percent, determine
(a) The amount of heat transfer in the regenerator and
(b) The thermal efficiency. Assume variable specific heats for air.
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Thermodynamics An Engineering Approach

ISBN: 978-0073398174

8th edition

Authors: Yunus A. Cengel, Michael A. Boles

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