Chapter 8, Problem 8.74P

Fast.

A turbine receives steam at 10 MPa, 6000C and exhaust it at 0.2 MPa. (a) for the actual engine,the brake engine efficiency is 84%; the driven generator efficiency is 93% and the rated output of the generator is 30 MW. Compute the combined work, combined heat rate, and the total throttle flow for the rated power.

1. define the cutfof ratio and the compression ratio     2. air is compressed at a constant temperature find the word done on the fluid under the: - initial pressure 200 kpa - final pressure 1500 kpa   - compression temperarture 600 k

Please read the problem and solve what is asked. Thanks! A two-stage compressor with an ideal intercooler receives 0.5m3/s of Helium at 150kpa and 300K and discharges it at 7500kpa. Find the heat rejected(kw) at the intercooler.   Ans. 27.015 kw

The piston displacement of a double acting compressor is 0.358 m3/sec, delivers gas from 101. 325 Kpa and300°K to 675 Kpa at the rate of 0.166 m3/sec at 150 rpm. Value of n for compression and expansion is 1.33. Find the compressor percent clearance.

An Otto engine has a clearance volume of 7%, it produces 300 kW of power in a minute. Find: Compression ratio heat added in kW heat rejected in kW Volume displacement if volume at point 1 is 0.1 m³ mean effective pressure in kPa Thermal efficiency, %

Ex: A centrifugal pump delivers (0.07 m³/s) of water at (1500 rpm) and the velocity of flow through the impeller at exit is (3m/s). The impeller diameter at inlet and out let are (0.18&0.027) respectively, and blades are curved back with an angle of 25° to the tangent at exit (the blade angle is 155° with the direction of motion). The diameter of the section and delivery pipes are (0.15 & 0.1m) respectively. The absolute pressure head at section is (6.5 m) and that at delivery is (29 m). the power taken by the pump is (35 hp). Calculate the van angle at the inlet, the overall efficiency and the monomeric efficiency and the losses across the pump.

a twin cylinder, double acting compressor with a clearance of 6% 25 m/min of air from 120 kpa, 40c to 750 kpa compressor is polytropic with 1.3. find the?  (a) work (b) vd  (c) the bore and storke for 150 rpm and l/d=12

Dry saturated steam at a pressure of 10 bar enters in a nozzle and is discharged at a pressure of 1.5 bar. Find the final velocity of steam when the initial velocity is negligible. If 10% of the heat is lost in friction in divergent part find the percentage reduction in the final velocity.