Chapter 7, Problem 7.104P

There are required 2000 kW of compressor power to handle air adiabaticallyfrom 1 atmosphere, 27 oC, to 305 kPaa. The initial air velocity is 20 m/s and the finalvelocity is 85 m/s. a) If the compression is isentropic, find the compressor capacity, inm3/s. b) If the compression process is irreversible adiabatic to a temperature of 160 oC,with the capacity found in c), determine the compressor power input, in Hp.

Air enters an insulated compressor at ambient conditions, 100 kPa, 20oC at the rate of0.2 kg/s and exits at 500 K. The isentropic efficiency of the compressor is 70%. Whatis the exit pressure? How much power is required to drive the compressor? Assumespecific heats at room temperatures.

The power of a steam turbine in a thermal power plant is 60 MW. Water vapor enters the turbine at 3MPa pressure, 4000C temperature and 50 m / s speed, 10 kPa pressure, 0.9 dry degree and 200 m / s speed leaves the turbine. Considering the turbine as adiabatic; 1-Find the mass flow of steam 2-Find the turbine outlet cross-sectional area, its ratio (A2 / A1) to the inlet cross-sectional area.

i need the answer quickly

A turbine operating in a continuous flow works adiabatically. The water vapor enters the turbine at a temperature of 650 C and comes out with 20 kPa pressure and 85% dryness. Find the mass flow rate (kg / sec) required to generate 10 MW of power from the system (ignore KE and PE changes)

Qs: 1 leg of air is allowed to expand reversibly in a behind a piston in such constant at 2602 lwhile the volume is doubled. The piston iis then moved in, and heat is regected by cylinder that the temp erature vemains away the air reversidly until the volume is the same asit was at constant 0 ini tially. Calculate the net heat flow and the overall change of entropy Sketel the process on T.s diagram. pressure Ans. [-161.9 J -- 0.497 les kg.k

An adiabatic turbine with a continuous flow of water vapor has a pressure of 10 MPa andIt enters at a temperature of 500 ° C, 10 kPa pressure and 90 percent drynessIt comes out with the degree. Kinetic and potential energy changesthe mass required for the turbine to produce 5 MW of powerCalculate the flow rate.

H.w: nitrogen gas flows into a convergent nozzle at 200 kpa,400 K and very low velocity .it flows out of the nozzle at 100 kpa.330 K.ifthe nozzle is insulated find the exit velocity .C, for nitrogen -1.042

can you write all steps ,and what you use (chart) be hurry please