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1. Sketch the deformation of a fluid element for the following cases:
2. For a two-dimensional, incompressible flow with velocity vx = vx(y), sketch a three-dimensional fluid element and illustrate the magnitude, direction, and surface of action of each stress component.
Calculate the percent energy distribution for a steam generator among the following categories: (i) steam, (ii) flue gas losses, (iii) carbon loss in ash (refuse loss), and (iv) miscella- neous heat transfer loss. The steam generator receives 480 sho..
What are the outlet air temperature, the heat rate q, and pressure drop tip for these conditions - To illustrate the tradeoff between heat transfer rate and pressure drop considerations, calculate q and tip for diameters in the range from 0.1 to 0...
a steam power plant operates on a rankine cycle with reheat. steam enters the turbine at 600 psia and 700 f. steam is
It is assumed that 1/4 of the energy generated from the power source will be used to form the weld nugget. Determine the power-on time the current must be applied in order to perform this spot-welding operation.
A centrifugal fan equipped with damper control has the damper wide open at full flow. The damper is partly closed to reduce flow to 80 percent of full load. Estimate the changes, in percent, in static pressure, and the horsepower requirement.
A child releases a helium-filled party balloon. It is filled with low-quality helium so that the net specific gravity (compared to ambient air) is 0.15, including a small allowance for the the light balloon shell. Its initial acceleration oppos..
A Carnot heat engine operates between two reservoirs at temperatures of 400 K and 500 K,. What is the ratio of the work output to the heat rejection?
Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 K, 1 bar, with a volumetric flow rate of 0.25 m3/s, and exits at 325 K, 0.95 bar. The flow area is 0.04 m2. Assuming the ideal gas model with k 5 1.4 for the ..
5-15 air at at 300degk and 1 atm. flowing over a flat plate at 30 ms how thick is boundary layer at 2.5 cm from the
a contractor is required to prepare a soil surface so that its planar and the normal direction to the surface is within
Find the magnitude of the passenger's acceleration at the instant.
a co-flowing heat exchanger receives air at 800k and 15 mpa and water at 15c and 100 kpa. the two flows exchange energy
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