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balu736 [363]
3 years ago
9

A Brayton cycle with regeneration using air as the working fluid has a pressure ratio of 7. The minimum and maximum temperatures

in the cycle are 310 and 1150 K. Assuming an isentropic efficiency of 75 percent for the compressor and 82 percent for the turbine and an effectiveness of 65 percent for the regenerator. Determine the total exergy destruction associated with the cycle, assuming u source temperature of 1500 K and a sink temperature of 290 K. Also, determine the exergy of the exhaust gases at the exit of the regenerator. Use variable specific heats for air.

Physics
1 answer:
charle [14.2K]3 years ago
4 0

Answer:

The exergy is 279.77 kJ/kg

The exergy of the exhaust gases is 143.24 kJ/kg

Explanation:

the step by step is in the image

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Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 1050 kg and was approaching at
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Answer:

v = 11.0 m/s at 198.6° (18.6° south of west)

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I assume you want to find the final velocity and the change in kinetic energy.

Take east to be +x and north to be +y.

Momentum is conserved in the x direction:

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Momentum is conserved in the y direction:

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The direction of the final velocity is:

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Missing part in the text of the problem: 
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Substituting the data, we find
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