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Helium initially at 327 deg. C and 100 kPa is contained in a frictionless piston-cylinder. The system is slowly cooled at a constant pressure to 27 deg. C.
a) Calculate the work for this process.
b) Calculate the heat for this process.
a double-acting duplex pump with 6.5 in liners 2.5 in rods and 18 in stokes was operated at 2000 psig and 20 cyclesmin
a rigid tank contains 20 lbm of air at 20 psia and 70degf. more air is added until the pressure and temperature rise to
determine the maximum power that can be transmitted thru a stepped shaft rotating at 60 hz. knowing the radius of the
A large stationary Brayton cycle gas-turbine power plant delivers a power output of 100MW to an electric generator. The minimum temperature in the cycle is 300K
calculate the transverse modulus of the peek/carbon fiber composite with 30% volume fraction by tow method. the modulus of peek is 3.8 GPa and the modulus of the carbon fiber is 400GPa. assume the reinforcing factor.
two moles of nitrogen are initially at 10 bar and 600 k state 1 in a horizontal pistoncylinder device. they are
Finding exit velocity from air nozzle, Air enters a nozzle operating at steady state at 800 ºR with a negligible velocity and exits the nozzle at 570 ºR.
derive an expression for the compressibility of air represented by tau for 1 and isothermal process and 2 for an
The piston is now unlocked so it is free to move, and it conducts heat so the air comes to a uniform temperature . Find the mass in both A and B, and the final T and P.
Evaluate the reduction in pump BHP required by heating the oil from 50° F to 100° F. Suppose efficiency of 80% (HP)
consider a container of volume 250ml that is divided into two compartments of equalnbspsize. in the left compartment
water flows near a flat surface and soe measurments of the water velocity u parallel to the surface at different
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