Question: In an ideal Brayton cycle with regeneration, air is compressed from 80 kPa and 10C to 400 kPa and 175C, is heated to 450C in

In an ideal Brayton cycle with regeneration, air is compressed from 80 kPa and 10°C to 400 kPa and 175°C, is heated to 450°C in the regenerator, and then further heated to 1000°C before entering the turbine. Under cold-air-standard conditions, the effectiveness of the regenerator is
(a) 33 percent
(b) 44 percent
(c) 62 percent
(d) 77 percent
(e) 89 percent

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