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Answer- Actual exit temperature of the air= 411.111k
Option(b) is Right
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An air compresor has an inentropic efciency of 30%. If the iniet temperature of the air...
An air compressor has an isentropic efficiency of 90%. If the inlet temperature of the air...
An air compressor has an isentropic efficiency of 90%. If the inlet temperature of the air to the compressor is 300 K, and the minimum work the air compressor can consume is 100.5 kJ/kg. The actual exit temperature of the air is? A. 400 K B. 411.11 K C.350 K D. 500 K
A car air conditioner operating with R-134a as working fluid has a minimum temperature of -10°C...
A car air conditioner operating with R-134a as working fluid has a minimum temperature of -10°C and a maximum pressure of 1 MPa. The actual adiabatic compressor exit temperature is 50°C. Heat is rejected in the condenser to ambient air at 27°C. Assume no pressure loss in the heat exchangers. Find the specific heat transfer from the cold space and that to the hot space, the COP, and the isentropic efficiency of the compressor. Also, determine the exergy destroyed in...
A compressor works on a pressure of 105 kPa and temperature 300 K in a Brayton...
A compressor works on a pressure of 105 kPa and temperature 300 K in a Brayton cycle and has an efficiency of 45%. The exhaust temperature is 700 K. Find the pressure ratio and the specific heat addition by the combustion for this cycle. The inlet pressure of an air compressor is 100 kPa, with temperature 290 K, and brings it to 600 kPa, after which the air is cooled in an intercooler to 330K by heat transfer to the...
Air enters the compressor of a cold air-standard Brayton cycle with regeneration at 100 kPa, 300...
Air enters the compressor of a cold air-standard Brayton cycle with regeneration at 100 kPa, 300 K, with a volume flow rate of 5 m3/s. The compressor pressure ratio is 8, and the turbine inlet temperature is 1400 K. The turbine and compressor each have isentropic efficiencies of 80% and the regenerator effectiveness is 80%. For the air, k = 1.4 and the ambient temperature is T0 = 300 K. -Determine the thermal efficiency of the cycle. -determine the back...
Air is compressed steadily by a reversible compressor from 100 kPa and 300 K to 900...
Air is compressed steadily by a reversible compressor from 100
kPa and 300 K to 900 kPa by a 10-kW motor. Assume air is both ideal
and has constant specific heat capacity values determined at room
temperature from Table A-2 at room temperature (300 K).
a) Determine the mass flow rate through the compressor if the
process is isentropic. ( find and identify the work per unit
mass)
b) polytropic with n = 1.2
c) isothermal
d) ideal two-stage polytropic...
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 7.5 m3/s. The compressor pressure ratio is 10. The turbine inlet temperature is 1400 K. Determine the following: The thermal efficiency of the cycle The back work ratio The net power developed in kW
Air enters a two-stage compressor at 300 K and 101 kPa. The pressure ratio of each...
Air enters a two-stage compressor at 300 K and 101 kPa. The pressure ratio of each compressor stage is 3, and there is intercooling between the stages, which reduces the temperature of the air back to 300 K. The efficiency of the compressors is 0.70; the ratio of specific heats for air, k, is 1.40; and the specific heat at constant pressure, p, is 1000 J/kg K. What would be the temperature of the air after the second compression if...
Air enters the compressor of a cold air-standard Brayton cycle at 100 kpa, 300 k, with...
Air enters the compressor of a 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, calculate a. The thermal efficiency of the cycle b. The back work ratio c. The net power developed, in kW d. Reconsider the above with an ideal regenerator.
3. Air is used as the working fluid in a simple ideal Brayton cycle that has...
3. Air is used as the working fluid in a simple ideal Brayton cycle that has a pressure ratio of 12, a compressor inlet temperature of 300 K, and a turbine inlet temperature of 1000 K. Determine the required mass flow rate of air for a net power output of 90 MW. Assume constant specific heats at room temperature.
If you could show all work with explanations that would be great!! Thanks!! #2. (30 pts)...
If you could show all work with explanations that would be
great!! Thanks!!
#2. (30 pts) A turbocharger boosts the inlet air pressure to an automobile engine. It consists of an exhaust gas-driven turbine directly connected to an air compressor, as shown in a below figure. For a certain engine load, the conditions are given in the below figure. Assume that both the turbine and the compressor are reversible and adiabatic, having also the same mass flow rate. Engine power...
An air compressor has an isentropic efficiency of 90%. If the inlet temperature of the air to the compressor is 300 K, and the minimum work the air compressor can consume is 100.5 kJ/kg. The actual exit temperature of the air is? A. 400 K B. 411.11 K C.350 K D. 500 K
Air is compressed steadily by a reversible compressor from 100
kPa and 300 K to 900 kPa by a 10-kW motor. Assume air is both ideal
and has constant specific heat capacity values determined at room
temperature from Table A-2 at room temperature (300 K).
a) Determine the mass flow rate through the compressor if the
process is isentropic. ( find and identify the work per unit
mass)
b) polytropic with n = 1.2
c) isothermal
d) ideal two-stage polytropic...
Air enters a two-stage compressor at 300 K and 101 kPa. The pressure ratio of each compressor stage is 3, and there is intercooling between the stages, which reduces the temperature of the air back to 300 K. The efficiency of the compressors is 0.70; the ratio of specific heats for air, k, is 1.40; and the specific heat at constant pressure, p, is 1000 J/kg K. What would be the temperature of the air after the second compression if...
Air enters the compressor of a 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, calculate a. The thermal efficiency of the cycle b. The back work ratio c. The net power developed, in kW d. Reconsider the above with an ideal regenerator.
3. Air is used as the working fluid in a simple ideal Brayton cycle that has a pressure ratio of 12, a compressor inlet temperature of 300 K, and a turbine inlet temperature of 1000 K. Determine the required mass flow rate of air for a net power output of 90 MW. Assume constant specific heats at room temperature.
If you could show all work with explanations that would be
great!! Thanks!!
#2. (30 pts) A turbocharger boosts the inlet air pressure to an automobile engine. It consists of an exhaust gas-driven turbine directly connected to an air compressor, as shown in a below figure. For a certain engine load, the conditions are given in the below figure. Assume that both the turbine and the compressor are reversible and adiabatic, having also the same mass flow rate. Engine power...
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