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Question Determine the power input for a compressor that compresses helium from 140 kPa and 17°C...
03 4: Air from the surrounding atmosphere at 100 kPa, 20 °C, enters a compressor with...
03 4: Air from the surrounding atmosphere at 100 kPa, 20 °C, enters a compressor with a velocity of 8.6 m/s through an inlet whose diameter is 36 cm. The compressed air exits at 650 kPa, 225 °C, with a velocity of 2.8 m/s. The rate of entropy generation for the compressor is 0.062 kW/K Determine the power input to the compressor, kW.
The centrifugal compressor shown here compresses air from 100 kPa, 27 °C to 600 kPa. This...
The centrifugal compressor shown here compresses air from 100 kPa, 27 °C to 600 kPa. This compressor has an isentropic efficiency of 85%. What is the air temperature at the compressor outlet and how much power does it require if the air volumetric flow rate is 9 m3/min at the compressor inlet? ideal has-hi 1 halt hasthi K- K TI OUT CH 300 =.599 Tas AR ENTERS f1technical.net .S99T25=100
3_4: Air from the surrounding atmosphere at 100 kPa, 20 oC, enters a compressor with a...
3_4: Air from the surrounding atmosphere at 100 kPa, 20 oC, enters a compressor with a velocity of 8.6 m/s through an inlet whose diameter is 36 cm. The compressed air exits at 650 kPa, 225 oC, with a velocity of 2.8 m/s. The rate of entropy generation for the compressor is 0.062 kW/K. Determine the power input to the compressor, kW.
Air enters the compressor of an ideal Brayton refrigeration cycle at 140 kPa, 270 K, and...
Air enters the compressor of an ideal Brayton refrigeration cycle at 140 kPa, 270 K, and is compressed to 420 kPa. At the turbine inlet, the temperature is 320 K and the volumetric flow rate is 0.4 m3/s. Determine (a) the mass flow rate, in kg/s (b) the net power input, in kW (c) the refrigerating capacity, in kW (d) the coefficient of performance Round answers to 3 significant digits.
Question 4 (16 Marks) A frictionless, adiabatic compressor compresses hydrogen at a pressure of 3 bar and a temperat...
Question 4 (16 Marks) A frictionless, adiabatic compressor compresses hydrogen at a pressure of 3 bar and a temperature of 10 °C, to a pressure of 16 bar. The hydrogen enters the compressor at a velocity of 80 m/s and exits at negligible velocity. From the compressor, the hydrogen is passed at constant pressure through a duct and cooled to a temperature of 55 °C, in the process. The hydrogen mass flow rate is 0.5 kg/s, and all changes in...
5. A compressor takes air from the atmosphere, which is at 100 kPa and 17 °C,...
5. A compressor takes air from the atmosphere, which is at 100 kPa and 17 °C, and compresses it to 500 kPa. The compressor is cooled at a rate of 100 kJ / kg of air throughput and the heat rejected to the surrounding air. Irreversibilities in the compressor increase the entropy of the air flowing through it by 0.2 kJ / kg. Calculate the work done and the entropy generated per unit mass of air.
Air enters the compressor of a gas-turbine engine at 51 kg/min at 128 kPa and 316...
Air enters the compressor of a gas-turbine engine at 51 kg/min at 128 kPa and 316 K and exits at 722 kPa and 555 K. Heat is lost from the compressor at 13 kJ/kg. Determine the power input (in kW to 1 decimal place) required assuming that kinetic energy can be neglected. Take the specific heat of air to be 1.05 kJ/kg.K.
QUESTION 3 Refrigerant-134a enters a compressor at 100 kPa and -20°C with flow rate of 1.601...
QUESTION 3 Refrigerant-134a enters a compressor at 100 kPa and -20°C with flow rate of 1.601 m/min and leaves at 800 kPa and 60 °C. Determine the power input of the compressor in kW (Give your answer with three decimals, and do NOT enter units!!!).
Air enters an adiabatic compressor at 17 Cand 90 KPa with a mass flow rate of...
Air enters an adiabatic compressor at 17 Cand 90 KPa with a mass flow rate of 0.2 Kg/s and exits at 400 KPa. The compressor has an isentropic effeciency of 88 % assuming constant specific heats at room temperature determine: A) The power input to the compressor B) The total rate of exergy destroyed during the process C) The second law efficiency of the compressor D) Draw the actual and isentropic process on T-5 diagram
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 MPa and -10°C at a rate of 0.124...
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 MPa and -10°C at a rate of 0.124 kg/s, and it leaves at 0.7 MPa and 50°C. The refrigerant is cooled in the condenser to 24°C and 0.65 MPa, and it is throttled to 0.15 MPa. Disregarding any heat transfer and pressure drops in the connecting lines between the components, determine (a) the rate of heat removal from the refrigerated space and the power input to the compressor...
03 4: Air from the surrounding atmosphere at 100 kPa, 20 °C, enters a compressor with a velocity of 8.6 m/s through an inlet whose diameter is 36 cm. The compressed air exits at 650 kPa, 225 °C, with a velocity of 2.8 m/s. The rate of entropy generation for the compressor is 0.062 kW/K Determine the power input to the compressor, kW.
The centrifugal compressor shown here compresses air from 100 kPa, 27 °C to 600 kPa. This compressor has an isentropic efficiency of 85%. What is the air temperature at the compressor outlet and how much power does it require if the air volumetric flow rate is 9 m3/min at the compressor inlet? ideal has-hi 1 halt hasthi K- K TI OUT CH 300 =.599 Tas AR ENTERS f1technical.net .S99T25=100
Question 4 (16 Marks) A frictionless, adiabatic compressor compresses hydrogen at a pressure of 3 bar and a temperature of 10 °C, to a pressure of 16 bar. The hydrogen enters the compressor at a velocity of 80 m/s and exits at negligible velocity. From the compressor, the hydrogen is passed at constant pressure through a duct and cooled to a temperature of 55 °C, in the process. The hydrogen mass flow rate is 0.5 kg/s, and all changes in...
5. A compressor takes air from the atmosphere, which is at 100 kPa and 17 °C, and compresses it to 500 kPa. The compressor is cooled at a rate of 100 kJ / kg of air throughput and the heat rejected to the surrounding air. Irreversibilities in the compressor increase the entropy of the air flowing through it by 0.2 kJ / kg. Calculate the work done and the entropy generated per unit mass of air.
QUESTION 3 Refrigerant-134a enters a compressor at 100 kPa and -20°C with flow rate of 1.601 m/min and leaves at 800 kPa and 60 °C. Determine the power input of the compressor in kW (Give your answer with three decimals, and do NOT enter units!!!).
Air enters an adiabatic compressor at 17 Cand 90 KPa with a mass flow rate of 0.2 Kg/s and exits at 400 KPa. The compressor has an isentropic effeciency of 88 % assuming constant specific heats at room temperature determine: A) The power input to the compressor B) The total rate of exergy destroyed during the process C) The second law efficiency of the compressor D) Draw the actual and isentropic process on T-5 diagram
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 MPa and -10°C at a rate of 0.124 kg/s, and it leaves at 0.7 MPa and 50°C. The refrigerant is cooled in the condenser to 24°C and 0.65 MPa, and it is throttled to 0.15 MPa. Disregarding any heat transfer and pressure drops in the connecting lines between the components, determine (a) the rate of heat removal from the refrigerated space and the power input to the compressor...
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