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Engine oil flows through a 50 mm diameter tube at an average temperature of 147oC. The flow velocity is 80 cm/s. Calculate the average heat transfer coefficient if the tube wall is maintained at a temperature of 200oC and it is 2 m long.
a converging-diverging nozzle is designed to operate with an exit mach number of 1.75. the nozzle is supplied from an
for a vertical cylinder with an electric heater 2500watt at the basean inletlower part of cylinder with cold water at
If your audio stereo amplifier has an output impedance of 8?, what resistance should your speaker coils have to maximize the generated sound power
The curved wall is well-insulated and may be regarded as adiabatic. Heat transfer between the surfaces occurs only by radiation.
a refrigerant 134a at 140 kpa and -10 degree celcius is compressed by an adiabatic 16kw compressor to an exit state of
determine the pumpcompressor work input leave as kjkg required to isentropically compress water in part a as a liquid
Determine the torque at the motor-turbine shaft and the total power delivered to the turbine. What is the total power consumed by the motor?
An ordinary egg can be approximated as a 5.78 cm diamater sphere. The egg is initially at a temperature of 7.9C and is dropped into boiling water at 97C. Taking the properties of the egg to be p=1020 and cp=3.32. Determine how much heat is transferre..
A steel plane of finite dimension and thickness of 13 mm has the initial (uniform) temperature of 35 C. put the plane into the solution in all sudden and the wall temperature is increased to 146 C spontaneously. The thermo diffusivity of the plane, i..
Propane gas enters a continuous adiabatic heat exchanger' at 40°C and 250 kPa and exits at 240°C superheated steam at 300°C and 5.0 bar enters the exchanger flowing counter currently to the propane and exits as a saturated liquid at the same press..
two particles a and b are travelling around a circle of redius 2m in opposite directions. the velocity of particle a
Consider a copper tube as a capped cylinder that cannot lengthen or shorten. If it were ?lled with water, what would be the circumferential strain in the wall when the water froze?
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