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Yet another cycle is proposed in which energy is added at constant volume until the fluid achieves state 2, the gas is then expanded to its initial pressure (state 3) before being compressed isobarically back to its initial conditions (state 1). Show that the thermal efficiency of this cycle is
If the initial conditions are 27 °C and 1.0 bar, and the energy added is 2000 kJ/kg, calculate the thermal efficiency of the cycle. What is the specific work output of the cycle?[35.4%; 708 kJ/kg]
the homogenous composite object shown is 3 inches thick and is hinged at o. l 48 inches w 6 inches and r 12 inches
calculate the mass of the sun noting that the period of the earths orbit around the sun is 3.156 107 s and its distance
the force f 30i 20j - 10k n. a determine the magnitude of the moment of f about a. b suppose that you can change the
locate the initial and final states on a sketch of the T-v digram. determine the mass of vapor present at the initial and final state, each in kg.
starting from the general form of the heat equation in cylindrical coordinates for a system write an equation for the
what do you understand by closed packed planes and closed packed direction in the arrangement of atoms? justify their
How can you tell from a root locus if the settling time does not change over a range of gain values? What values of damping is associated when a pair of dominant poles Crosse the imaginary axis?
The maximum running speed you would recommend for the pump.
Steam flows through a small steam turbine at the rate of 10,000 kg/hr, entering at 600 C and 2 MPa and emerging at 0.01 MPa with 4% moisture. The flow enters at 50 m/s at a point 2 m above the discharge and leaves at 80 m/s. Compute the shaft-power o..
the wheel consists of a 4-kg rim of 250-mm radius with hub and spokes of negligible mass. the wheel is mounted on the
Pumped hydroelectric costs about $500 per kW to install your turbomachinery and penstocks, plus $2 per cubic yard to build reservoirs. Calculate the initial capital cost of your pumped hydroelectric system.
A journal bearing is proposed for a steam engine. the load on the journal is 3 kN, diameter 50 mm length 75 mm speed 1600 r.p.m , diametral clearance 0.001 mm ambient temperature 15.5 C oil SAE 10 is used and the film temperature is 60 C. Determine t..
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