
Air is compressed steadily by a reversible compressor from an inlet state of 100 kPa and...
Air is compressed steadily by a reversible compressor from an inlet state of 100 kPa and 300 K to an exit pressure of 900 kPa. if the volume flow rate = 1 m/sec Determine: the compressor power (kW) for isentropic compression with k = 1.4 Choose... the compressor power (kW) for polytropic compression with n = 1.3 Choose.. the compressor power (kW) for ideal two stage compression with intercooling with a polytropic exponent of 1.3 Choose... the compressor power (kW)...
Q3: Air is compressed steadily by a reversible compressor from an inlet state of 100 kPa and 27 C to an exit pressure of 900 kPa. Determine the compressor work with the mass flow rate of 0.12 kg/s;(R-0,287 kJ/kgK) 0 a) Polytropic compression with n-1.3, b) Ideal two stage compression with intercooling with a polytropic exponent of 1 .3. Hava särekli akh, tersinir bir kompresörde 100 kPa basinç ve 27 C sicakliktan, 900 kPa basinca sikaşturidmaktadur. Akgkarun kätle debisinin 0.12...
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...
Question 6 Air at the inlet of an ideal (reversible-adiabatic) compressor is at 100 kPa and 2685o. The compressor exit pressure is at 620.4 kPa. Determine the compressor power (kw Calculate the power based on variable specific heats (i.e.,use the ideal gas table for air). Selected Answer Incorrect [None Given] Rgl_e 尻(T) W, m(m-h.) Correct Answer: Correct -47.41% Question 7 Nitrogen gas expands in an adiabatic nozzle from 800 kPa 600x, to a final pressure of 98.26 kPa. Calculate the...
P1) (50 points) - Air is compressed steadily by a 7.5-kW compressor. Air enters a compressor at a pressure of 100 kPa, a temperature of 290 K and a velocity of 6 m/s through an inlet with an area of 0.005 m2. At the exit, the pressure is 700 kPa, the temperature 480 K and the velocity is 2 m/s. Determine: a) heat transfer that takes place between the compressor and the surrounding medium at 290 K, in kW and...
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 is compressed by an adiabatic compressor from P2=100 kPa to P2=500 kPa. T2=380 K and T2=650 K. Air is an ideal gas with variable specific heats. Determine a) The exit temperature of the air for the isentropic case. Each of the above temperatures and pressures are given as actual. b) The efficiency of the compressor.
Air is compressed by an adiabatic compressor from 95 kPa and 27°C to 600 kPa and 277°C. Assuming variable specific heats and neglecting the changes in kinetic and potential energies, determine (a) the isentropic efficiency of the compressor and (b) the exit temperature of air if the process were reversible. b) Texit
Air, initially at 300 K and 100 kPa, is compressed adiabatically in a steady flow compressor to 600 K and 500 kPa. a) Perform the necessary calculations to show that the process is irreversible b) Compare the change in energy carried by the air due to the process. Briefly comment. c)How would the comparison in part (b) look like if the process were reversible? TO answer this question, you can either use equations or briefly explain. d) Calculate the isentropic...
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...