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One and one-half pounds of water within a piston-cylinder assembly execute a Carnot power cycle. During isothermal expansion, the water is heated at 5008F from saturated liquid to saturated vapor. The vapor then expands adiabatically to a temperature of 1008F and a quality of 70.38%.
(a) Sketch the cycle on p-y coordinates.
(b) Evaluate the heat transfer and work for each process, in Btu.
(c) Evaluate the thermal efficiency.
We need to design a piping system that transports 35ft^3/s of water 100ft. The available head is 7ft. The pipe is to be made out of a rough concrete material. Find the necessary diameter for the pipe.
If the metal sheet is moving at a steady velocity of 10 m/min, determine the required rate of heat removal from the oil to keep its temperature constant at 45°C.
an air preheater for a power plant consists of a cross-flow heat exchanger with hot exhaust gases used to heat incoming
an initially empty canister of volume 0.2 m3 is filled with co2 from a line at 800 kpa 400 k. assume the process runs
a state runs a lottery in which 6 numbers are randomly selected from 40 without replacement. a player chooses 6 numbers
the transverse shear v at a certain section of timber beam is 25kn. if the beam has the cross sectio shown in the
airplane takeoff from an aircraft carrier is assisted by a steam-driven pistoncylinder with an average pressure of 1250
Assume that for a tensile test, d?t/d?t= ?t when necking begins. Based on this condition, determine the true strain at the onset of necking? Explain carefully any assumptions made.
5 kg of steam are initially at 310 bar and T = 750 C. The steam is isobaric ally cooled to 450 C. First, sketch the process on T -v and p - v diagrams. Then, determine Q, W, delta U, and delta H in kJ for this process using the steam tables.
the position of a particle moving in a curvilinear path is given by thetacos2t where theta units are radians and t
An Incompressible fluid flows through a 10-in diameter horizontal constant area pipe. At one section the pressure is 150 psia and 1000 ft downstream the pressure has dropped to 100 psia.Find the total frictional force exerted on the fluid by the pipe
The maximum normal stress in the beam. Is this stress comprehensive or tensile? b. The radius of curvature of the beam.
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