Chapter 7, Problem 7.110P

8000 m3 Humid air at 35 ° C dry bulb and 25 ° C wet bulb temperature at / h flow rate It is passed through a cooling coil until it becomes saturated at 17 ° C. This process Some of the moisture in the air condenses during the process and is taken out at 13 ° C. Accordingly, find the amount of heat drawn from the air and the amount of condensed water.

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.

The 6. A fluid expands from 3 bar and 150°C to 1 bar in a nozzle. The initial velocity is 90 m/s. isentropic efficiency is likely to be 0.95. Estimate the final velocity assuming the fluid to be steam and air.

A condenser (heat exchanger) brings 1 kg/s water flow at 10 kPa quality 95% to saturated liquid at 10 kPa. The cooling is done by lake water at 20 degree Celsius that returns to the lake at 30 degree Celsius. For an insulated condenser, find the flow rate of cooling water.

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.

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Carbon dioxide at 200 kPa, 10°C flows at 1 kg/s in a 0.25-m2 cross-sectional area pipe. Find the velocity and the volume flow rate.

6. The steam at 200 degree Cand with an entropy of 5.6105KJkg-K expand isothermally to 0.515MP.. For 5kg a) what are the change of entropy, change of enthalpy, and change of internal energy? Determine the Heat and Work b) for the flow process c) for steady flow process with change of kinetic energy is zero.

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?