Require answers to thermodynamics question found in attachment.
1) A steam engine producing 275 kw of power is fed with 2.1 kg/s of
steam at a pressure of 10 bar and temperature of 200 degrees. The
velocity of the steam at inlet is 20 m/s. The exhaust is at 0.20 bar and 100 degree; the velocity of the steam at exhaust is 120 m/s. The inlet into the steam engine is located at 2.7 m above the ex?
haust. Estimate the rate of heat loss from the steam engine. 2) 0.420 kg/s of argon gas is compressed from 1 bar and 20 de?
grees to 5 bar in a compressor of isentropic efficiency of 87%. Cal?
culate the power consumption of the compressor and the tempera?
ture of the compressed gas. The heat capacity ratio is 1.66. assume
the process is adiabatic and that the gas is perfect. Neglect changes in kinetic and potential energy 3) A tank of volume 0.1 m^3 contains air 25 degrees and 101.33 spa. The tank is connected to a compressed air line which supplies air at the constant condition of 45 degrees and 1500 kph. A valve in
the line is cracked so that the air flows slowly into the tank until the pressure equals the line pressure. If the process occurs slowly enough that the temperature in the rank remains at 25 degrees, how much heat is lost from the tank. The specific gas constant is 287 j/kg.k and the constant pressure specific heat capacity is 1004 j/kg.k
This question was answered on: Sep 18, 2020
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