Chapter 7, Problem 7.96P

Ans. 3908 m/min. 14.5 Find the cylinder dimensions of a single-cylinder, double-acting compressor handling 28.32 e/revolution of air from 99.975 kPaa to 723.954 kPaa. Compression and reexpansion are in accordance with PV135 = C. Use the conventional volumetric efficiency; c = 5% and L/D = 1. %3D %3D

Write legibly, provide manual step by step solution, and diagram for below given problem. Steam enters a turbine at 1.4 Mpa and 320. The turbine internal efficiency is 70%, and the total requirement is 800 kw. The exhaust is to the back pressure system, maintains at 175kpa. Find the stean flow rate. a. 2.62 kg/s    c. 3.23 kg/sb. 4.23 kg/s   d. 5.34 kg/s

Pls. Answer this thank you!Steam enters a turbine stage with an enthalpy of 3628 kj/kg at 70 m/s and leaves the same stage with an enthalpy of 2846 kj/kg and a velocity of 124 m/s. Calculate the power in KW if there are 5 kg/s steam admitted at the turbine throttle.

Velocity ratio of a machine is 72. The law of machine is P=1/48 W+30 N. Find the maximum MA, efficiency and state whether machine is reversible.    KINDLY SOLVE THIS...please.

B: drive the theoretical head - discharge relation in pumps then show the effect of the exit blade angle on this relation.

Q2//The rotational-speed of an impulse turbine wheel is 3000 r.p.m. The nozzles are inclined at 20° and their efficiency is 0.89. The isentropic heat drop for the stage is 159 kJ/kg. If the blade speed ratio is 0.4, the blade speed coefficient is 0.82, and the blade efficiency is 0.76. Find for steam flow rate of 15 kg/s: 1. The mean blade ring diameter. 2. The power developed by the stage. B = 32.4°:Be : 38.5°). %3D %3D Answer (1.355m, 1613.2 kW,

I need the answer as soon as possible

A single acting two-stage air compressor deals with 4 m^3/min of air under atmospheric conditions of 1.013 bar and 15°C with aspced of 250r.p.m. The delivery pressure is 80 bar. Assuming complete inlercooling, find the minimum power required by the compressor and the bore and stroke of the compressor. Assume a pistonspeed of 3 m/s, mechanical efficiency of 75 percent, and volumetric efficiency of 80 percent per stage. Assumethe polytropic index of compression in both the stages to be it = 1.25 and neglect clearance.

1. A pump is used to lift 11 CMH of water at 20°C from a nearby fresh water lake whose free surface is 2.5 meters below the pump centerline to an elevated water dam whose free surface is 10 meters above the pump centerline. The suction pipe and discharge pipe are DN 8 SCH 40 and DN 10 SCH 40, respectively. The suction pipe has a total length of 5.4 m, while the discharge pipe has a total length of 21 m. Assume Hazen-Williams coefficient of 140 for both suction and discharge pipes and ignore minor head losses. a. Draw a schematic of the problem. Clearly indicate the elevations with respect to the pump centerline. b. Calculate the total dynamic head of the pump in meters. c. Calculate the water power output of the pump in kW. d. Calculate the brake power input to the pump in kW, assuming a pump mechanical efficiency of 75%. e. Calculate the electrical power input to the pump in kW, assuming a motor efficiency of 90%.