An ideal Brayton cycle with regeneration has a pressure ratio of $10 .$ Air enters the compressor at $300 \mathrm{K}$ and the turbine at $1200 \mathrm{K}$. If the effectiveness of the regenerator is 100 percent, determine the net work output and the thermal efficiency of the cycle. Account for the variation of specific heats with temperature.
Added by Hector C.
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Given: Pressure ratio, $r = 10$ Inlet temperature to compressor, $T_{1} = 300 \, \text{K}$ Inlet temperature to turbine, $T_{3} = 1200 \, \text{K}$ Effectiveness of regenerator, $\varepsilon = 1$ (100%) Show more…
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Sri K.
An ideal Brayton cycle with regeneration has a pressure ratio of 10. Air enters the compressor at 300 K and the turbine at 1200 K. If the effectiveness of the regenerator is 100 percent, determine the net work output and the thermal efficiency of the cycle. Account for the variation of specific heats with temperature.
An ideal air-standard Brayton cycle includes an ideal regenerator. The state into the compressor is $100 \mathrm{kPa}, 20^{\circ} \mathrm{C},$ and the pressure ratio across the compressor is $12: 1 .$ The highest cycle temperature is $1100^{\circ} \mathrm{C},$ and the air flow rate is $10 \mathrm{~kg} / \mathrm{s}$. Use cold air properties and determine the compressor work, the turbine work, and the thermal efficiency of the cycle.
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