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A vertical jet of liquid of diameter d and moving at velocity u∞ impinges on a horizontal disk rotating ω rad/s. There is no heat transfer in the system. Develop an expression for δ(r), where r is the radial coordinate on the disk.
Contrast the r dependence of δ with that of a condensing film on a rotating disk and explain the difference qualitatively.
an ideal gas contained in s piston-cylinder device undergoes and isothermal compression process which begins with an
A piston cylinder device contains nitrogen gas as the system. Initially, the system is at 1.5MPa and 470 °C. It now undergoes an isobaric process until its temperature is 25°C. Determine the final pressure and the heat transfer, in kJ/kg, associated ..
a piston-cylinder assembly contains 1kg of water initially occupying a volume of 0.5m3 at 1bar. energy transfer by heat
estimate the pressure on your hand when you hold it in the stream of air coming from the air hose at a filling station.
The bearings are 1 m apart. The shaft rotates at 2400 rpm. If the centre of mass of the rotor is 0.11 mm away from the geometric centre of the rotor due to certain manufacturing defect, find the amplitude of the steady-state vibration and the dyna..
determine the rate of heat loss from the pipes
a system changes its state from state 1 to state 2 following pvconstant.. the pressure p and specific volume v at state
the heat supplied by a heat pump used to maintain a buildings temperature is often supplemented by another source of
Air at 60° F and 40 psia is flowing in a 4" diameter pipe at 0.2 slugs/sec. The pipe undergoes a conversion to a 2" by 3" rectangular duct in which T = 150°F and P = 7 psia. Calculate the average velocity in each section.
a space is at a temperature of 75 f 24 c and the relative humidity is 45 percent. find a the partial pressures of the
An adiabatic compressor compresses nitrogen (k=1.4, R=0.297) from P1=200 kPa and T1=300K to P2=1500kPa. The isentropic efficiency of the compressor is 80%, mass flow rate is 2247kg/hr, and I found T2s=533K and T2a=591K. How much power input does this..
1. For each case, determine the specified property at the indicated state. Locate the state on a sketch of the T-y diagram. (a) Water at y 5 0.5 m3/kg, p 5 3 bar, determine T, in °C.
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