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Consider fully developed constant-property laminar flow between parallel planes with constant heat rate per unit of length and a fully developed temperature profile. Suppose heat is transferred to the fluid on one side and out of the fluid on the other at the same rate. What is the Nusselt number on each side of the passage? Sketch the temperature profile. Suppose the fluid is an oil for which the viscosity varies greatly with temperature, but all the other properties are relatively unaffected by temperature. Is the velocity profile affected? Is the temperature profile affected? Is the Nusselt number affected? Explain.
Each turbine stage isentropic efficiency of 85% FWH is open T-S diagram for cycle? What is thermal efficiency and the moisture content of the steam leaving the low-pressure turbine?
a man of mass m1 walks along a plank of length l with a constant acceleration a relative to the plank. The mass of the plank is m2 and the coefficient of friction between the plank and the ground is mu. Find the distance the plank moves if the man..
piston having a diameter of 5.48 inches and a length of 9.50 in slides downward with a velocity v through a vertical
for each state indicate if the fluid is compressed liquid saturated mixture or superheated vapor. show the state on a
a nominally linear electrical output force measuring device has the manufacturer specifications listed below. the
the velocity of a lift increases uniformly from zero to its maximum value at mid-height (1.4m) in 7.5s and then decreases uniformly to zero in 7.5s. The peak power output is 6kW when the velocity is maximum, determine the maximum lift force provid..
a 1 hp electric motor drives a water pump. the pump volumetric flow rate is 2103 m3s at 300 k.a determine the head loss
an ideal carnot heat engine has an efficiency of 40. if the high temperature is raised 15 what is the new efficiency
a thin flat pate that is 0.2m by 0.2m on a side is oriented parallel to an atmospheric airstream having a velocity of
after a combustion process in a cylinder the pressure is 1200 kpa and the temperature is 350 c. the gases are expanded
a 0.12-m3 rigid tank contains saturated refrigerant- 134a at 800 kpa. initially 25 percent of the volume is occupied by
a closed rigid tank whose volume is 1.5 m3 contains refrigerant 134a initially a two phase lipuid-vapor mixture at 10c.
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