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1. Saturated steam at 1.5 bars condenses inside a horizontal, 75-mm-diameter pipe whose surface is main- tained at 100°C. Assuming low vapor velocities and film condensation, estimate the heat transfer coefficient and the condensation rate per unit length of the pipe.
2. Consider the situation of Problem 10.67 at relatively high vapor velocities, with a fluid mass flow rate of m = 2.5 kg/s.
(a) Determine the heat transfer coefficient and condensation rate per unit length of tube for a mass fraction of vapor of X = 0.2.
(b) Plot the heat transfer coefficient and the condensa- tion rate for 0.1 X 0.3.
A single-stage ideal regenerative steam cycle has a boiler pressure and temperature of 5000 kPa and 500 C, and a condensing pressure of 10 kPa. The extraction pressure is 500 kPa.
a nuclear power plant produces 1.2 gw of electric power at a system efficiency of 20. the plant rejects heat into a
For this fluid level determine the average pressure C supported by the seal area of the valve before force is applied to lift the plunger and (b) determine the force P
A piston-cylinder contains 0.1 kg of superheated steam at 180 ¯ C and 5.0 bars. The piston is frictionless and freely floating. Heat is added until the final volume is twice the initial volume.
1. graphically verify moseleys law for the k beta1 lines of cu mo and w.2. acalculate the mass an linear absorption
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Consider atmospheric air at 25 degrees Celsius and a velocity at 25 m/s flowing over both sides of a 1 eter long flat plate that is maintained at 125 degrees Celsius. Determine the rate of heat transfer per unit width from the plate for values of th..
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the ice cap at the north pole may be 1000 m think with a density of 920 kgm3. find the pressure at the bottom and the
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