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mafiozo [28]
3 years ago
9

A gas-turbine power plant operates on the simple Brayton cycle between the pressure limits of 100 and 1600 kPa. The working flui

d is air, which enters the compressor at 40∘C at a rate of 850m3/min and leaves the turbine at 650∘C. Assuming a compressor isentropic efficiency of 85 percent and a turbine isentropic efficiency of 88 percent, determine
(a) the net power output,
(b) the back work ratio, and
(c) the thermal efficiency.
Use constant specific heats with
cv=0.821kJ/kg?
K,cp=1.108kJ/kg?
K, and k=1.35.

Physics
1 answer:
anzhelika [568]3 years ago
7 0

Answer:

a) 6498.84 kW

b) 0.51

c) 0.379

Explanation:

See the attached picture below for the solution

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<u>Momentum</u> 
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- has the same direction as object's velocity
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!! Finally, to find the magnitude of velocity, take the divide magnitude of momentum by the total mass of the players.
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If asked to find direction, take inverse tan of x and y components.
tanθ = (y/x)
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[ θ = 61.73° north of east. ]

The magnitude of the velocity at which the two players move together immediately after the collision is approximately 6.0 m/s.
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