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Calculate the rate of heat loss per foot and the thermal resistance for a 6-in. schedule 40 steel pipe covered with a 3-in. thick layer of 85% magnesia. Superheated steam at 300°F flows inside the pipe (hc = 30 Btu/h ft2 °F) and still air at 60°F is on the outside (hc =5 Btu/h ft2 °F).
a devise take 5 kgs of water at a pressure of 300 kpa and a temp of 180 degrees c. the water exists the devise at the
a thin circular cylindrical shell subjected to internal pressure p isnbspsimultaneously compressed by an axial load p
a work piece 400 mm x 70 mm in diameter is to be machined. the material has constants n0.23and c250 mmin. disposable
a piston-cylinder device contains 5 kg of refrigerant-134a at 0.7 mpa and 60 degrees c. the refrigerant is now cooled
Calculate the force required in direct extrusion of 1100-O aluminum from a diameter of 6 in. to 2 in. Assume that the redundant work is 30% of the ideal work of deformation, and the friction work is 25% of the total work of deformation.
Air flows isentropic ally at the rate of 1 kg/s through a converging-diverging nozzle. The stagnation temperature is 310 K and the stagnation pressure is 810 kPa. If the exit pressure is 101.3 kPa, determine: The throat area. The exit Mach number.
A rigid tank with a volume of 1.8 m^3 contains 15 kg of saturated liquid-vapor mixture of water at 2 bar. Now the water is slowly heated. Determine the temperature at which the liquid in the tank is completely vaporized. Show the process on a T-v dia..
a load of 500 pounds is placed on a cylinder of 1040 carbon steel with a 2 inch radius. calculate the stress in
apply the first law of thermodynamica eq 1 to a finite volume element in a stationary solid. let rt be the temperature
find the force required for the direct extrusion of commercially pure aluminum 1100-o billet 8 in in diameter into a
a refrigerator operates on the ideal vapor compression refrigeration cycle with r-134a as the working fluid between the
a pontoon of constant rectangular cross section is 50 m long 10 m wide and 5 m in depth. it floats in sea water at a
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