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1. Explain why the shrinkage equation derived from a two-particle model cannot be applicable to the prediction of the shrinkage of a real powder compact with a particle size distribution.
2. At the final stage of sintering, the densification of a powder compact occurs by both lattice and grain boundary diffusion. With an increased sintering time, which mechanism is more important for densification? Is it possible to get an answer from Herring's scaling law? Assume negligible grain growth.
A combined cycle power plant burns natural gas and produces 600MW and has an efficiency of 48%. Find the whole sale cost of natural gas and determine the cost of the fuel burned per second for the plant to produce it rated output of 600MW
Three SAE Class 4.8 bolts (Sp = 310 MPa) are used to attach a rigid beam to a rigid support structure. Determine the minimum standard size bolt required from the Table provided
two infinite black plates of 600 and 100 degrees celcius exhange heat by radiation. calculate the heat transfer rate
explain what the equation of motion will become if you have three particles - the first two are sticky and the third
A square bar of side 20mm and length 2m is under a tensile load of 400N. Then the Normal stress is _____ MPa and the Maximum Shear stress is _____ Mpa. If the modulus of elasticity is 200GPa, then net deflection of the bar is ______m and the strain i..
the percentage of the energy available at turbine inlet that is lost as kinetic energy at turbine exit.
How do I calculate isentropic efficiency of a steam turbine when I know the inlet and outlet conditions?
The design specification for a transmission shaft states that the angle of twist must be no more than 1° over a length 20 times the diameter. Using this specification determine the diameter of a solid steel shaft to transmit 150 kW at a speed of 3..
the flow rate of air ar standard conditions in a flat duct is to be determined by installing pressure taps across a
Calculate the pressure, specific volume and temperature at the end ofeach process in the cycle and the thermodynamic efficiency of the cycle.
a 10-pitch 20-degree full-depth involute gearset with qv10 and a face width of 1.25 inches is being proposed to provide
In Figure P2.7 a linear intermittent motion mechanism is shown. Given the angular velocity of the crank and its radius, r2, how would velocity and acceleration of the slider change during the cycle of the crank?
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