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A) A horizontal tube having a 1.25 cm outside diameter is submerged in a water 1 atm and 100 oC. Determine the heat flux for the surface temperature of (a) 540 oC, (b) 650 oC, and (c) 800 oC. Assume =0.8?
B) Determine the Heat Transfer Coefficient for the forced convection local boiling of water at 5 atm in a vertical tube. The temperature surplus is 10 oC.
a. Describe the problems of flooding and channelling in packed tower b. Describe the construction and working of sieve tray, bubble cap tray and counter flow tray c. Describe
Experimental data for these fluids is included in the Homework folder. Calculate the error, at a given T and V, for each method as follows: Ε = P EOS -P exp / P exp ×100%
Properties of filament and contact materials. The Filament materials must have low resistance temperature co-efficient, high melting point, high mechanical strength, ductility
It is desired to concentrate a NaOH solution from 12.5 % to 40% in a double effect evaporator. 50,000 lb/hr of feed solution enters the evaporator at 120 o F, and steam at 15 psig
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Colebrook equation is used to find a friction factor, f , in a pipe flow as given by: where ? and Re are the roughness ratio and Reynolds number respectively. Considering
Properties of good refractory material: The requirements of refractories for different furnaces and heating places depend on the working conditions. Nature of slag formed, maximum
In a ferroelectric material, the spontaneous polarization vanishes above Curie temperature.
Describe various properties and applications of mica and transformer oil. Properties and uses of MICA Mica has a high dielectric strength and good chemical stability, making
prove that work is a path function
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