Air enters the compressor of an ideal gas refrigeration cycle at 17°C and 35 kPa and...

Air enters the compressor of an ideal gas refrigeration cycle at 17°C and 35 kPa and the turbine at 47°C and 160 kPa. The mass flow rate of air through the cycle is 0.3 kg/s. Assume variable specific heats for air.

Determine the net power input.

The net power input is kW.

Solutions

Expert Solution

samet mamat answered 1 year ago

Next > < Previous

Related Solutions

. Air enters the compressor of an ideal gas refrigeration cycle at 7oC and 40 kPa...

. Air enters the compressor of an ideal gas refrigeration cycle at 7oC and 40 kPa and the turbine at 37oC and 170 kPa. The mass flow rate of air through the cycle is 0.3 kg/sec. Assuming variable specific heats for air, determine (a) the rate of refrigeration, (b) the net power input, and (c) the coefficient of performance. Also, draw the T-s diagram of the gas refrigeration cycle.

Air enters the compressor of an ideal Brayton refrigeration cycle at 140 kPa, 270K and is...

Air enters the compressor of an ideal Brayton refrigeration cycle at 140 kPa, 270K and is compressed to 420 kPa. At the turbine inlet, the temperature is 320K and the volumetric flow rate is 0.4 m3/s. Determine (i) the mass flow rate, in kg/s; (ii) the net power input, in kW; (iii) the refrigerating capacity, in kW; and (iv) the coefficient of performance.

Air enters the compressor of an ideal air standard Brayton cycle at 100 kPa and 290...

Air enters the compressor of an ideal air standard Brayton cycle at 100 kPa and 290 K with a mass flow rate (m⋅) of 6 kg/s. The compressor pressure ratio is 10. The turbine inlet temperature is 1500 K. If a regenerator with an effectiveness of 70% is incorporated in the cycle, determine (a) the thermal efficiency (ηth,Brayton) of the cycle. Use the PG model for air. (b) What-if Scenario: What would the thermal efficiency be if the regenerator effectiveness...

Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 300 K, with...

Air enters the compressor of an ideal air-standard Brayton cycle at 100 kPa, 300 K, with a volumetric flow rate of 5 m3/s. The turbine inlet temperature is 1800 K. For a compressor pressure ratio of 9, determine: (a) the percent thermal efficiency of the cycle. (b) the back work ratio. (c) the net power developed, in kW.

Air enters the compressor of an ideal cold air-standard Brayton cycle at 100 kPa, 300 K,...

Air enters the compressor of an ideal cold air-standard Brayton cycle at 100 kPa, 300 K, with a mass flow rate of 6 kg/s. The compressor pressure ratio is 10, and the turbine inlet temperature is 1400 K. For k = 1.4 and Cp = 1.005 kJ/kg, calculate: (a) the percent thermal efficiency of the cycle. (b) the back work ratio. (c) the net power developed, in kW

Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C...

Air enters the compressor of a gas-turbine plant at ambient conditions of 100 kPa and 25°C with a low velocity and exits at 1 MPa and 347°C with a velocity of 90 m/s. The compressor is cooled at a rate of 1500 kJ/min, and the power input to the compressor is 235 kW. Determine the mass flow rate of air through the compressor. The inlet and exit enthalpies of air are 298.2 kJ/kg and 628.07 kJ/kg. The mass flow rate...

An ideal refrigeration cycle utilizes R-134a as a working fluid. If the fluid enters the compressor...

An ideal refrigeration cycle utilizes R-134a as a working fluid. If the fluid enters the compressor as saturated vapor at 6 C and enters a throttling valve as a saturated liquid at 1.2MPa. Assuming the mass flow rate of fluid is 1 kg/sec. 1. The heat received by the fluid (kJ) is 2. The heat received by the surroundings (kJ) is 3. The power input to the compressor (kJ) is 4. The coefficient of performance is

. Air enters the compressor of a gas turbine power plant operating on Brayton cycle at...

. Air enters the compressor of a gas turbine power plant operating on Brayton cycle at 14.5 psia and 540° R. The pressure ratio across the turbine and compressor is same, which is equal to 6. Assume that the compressor work as 0.4 times the turbine work. Take K=1.4 a) Draw the T-S diagram of the cycle. [2] b) Calculate the maximum temperature in the cycle. [3] c) Calculate the cycle efficiency

An air compressor operating in adiabatic steady flow takes in air at 17 C, 200 kPa...

An air compressor operating in adiabatic steady flow takes in air at 17 C, 200 kPa and discharges is at 1300 kPa. Calculate the minimum work required to drive the compressor assuming the compressor has i) constant specific heats. ii) non-constant specific heats.

Air enters the compressor at 100 kPa, 300 K and is compressed to 1000 kPa. The...

Air enters the compressor at 100 kPa, 300 K and is compressed to 1000 kPa. The temperature at the inlet to the first turbine stage is 1400 K. The expansion takes place isentropically in two stages, with reheat to 1400 K between the stages at a constant pressure of 300 kPa. A regenerator having an effectiveness of 100% is also incorporated into the cycle. The turbine and the compressor each have am isentropic efficiency of 80%. Determine the following: (a.)...

Subjects