Chapter 7, Problem 7.119EP

Air at the rate of 14kg/sec expands from 3bar, 1500C, 0.1m3 to 1 bar reversibly and adiabatically. Find the exit temperature and power developed. If the heat is given to the system 1200J. Find out the change in internal energy

Steam flows isentropically through a nozzle from 1517Kpa, 288degC and 965kPa. Mass is 454g/s Find: 9. Final Temperature 10. Work (identify if steady or non-flow work)

A steam is expanded through a nozzle and the enthalphy drop per kg of steam from the initial pressure to the final pressure is 70 kJ. Neglecting the friction, find the velocity of discharge.

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

Thermodynamics sketch and label the turbine. Sketch and label the process on a T-s diagram also mentions all numbers on the process please. Thanks 7.56 A steam turbine has an inlet of 2 kg/s water at 1000 kPa, 400°C with velocity of 15 m/s. The exit is at 100 kPa, 150°C and very low velocity. Find the power produced and the rate of entropy generation.

one kg of air is compressed in a cylinder according to the law PV^1.3= constant. If intital temperature is 100°C amd compression ratio is 15, find the work done and change in entropy of air.

A complex flow system expands helium from 1500 K, 1000 kPa to 500 K, 100 kPa. In the process this produces 4595 kJ/kg of work. The process exchanges heat with a reservoir at TR. If the process is reversible, find the unknown reservoir temperature (K). You can work this with either Thermofluids or the equations... Your choice. If equations, Cp=5.19 kJ/kg-K, Cv=3.12 kJ/kg-K, R=2.08 kJ/kg-K. Helium 1500 K 1000 kPa TR q 500 K 100 kPa W=4595 kJ/kg

Question 1. Refrigerant-I34a enters a compressor (as a saturated vapor) at 14°C. It leaves at 1600 kPa, enthalpy of 265 KJ/kg. Velacity is 5s m/s. Mass flow rate is 4.6kg/s. Use property table. What is the qua lity of R-134a at the exit in percentage ? O Rate of work done in KW?

3) A steam with a quality of 49%, enters an adiabatic nozzle at 3.5 MPa and leaves at 0.4 MPa and 140°C with a flow of 7 m/s. Find the entrance velocity, in m/s.