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Refrigerant 22 is used in the evaporator pipe of a commercial refrigeration unit. At steady state it flows at a rate of 0.5 kg/s through the pipe of constant diameter. It enters the pipe at -?100C with a velocity of 5 m/s and a quality of 25%. It exits at the same temperature, but as saturated vapor. (a) Draw a schematic and show the control volume you have selected; (b) Calculate the diameter of the pipe; and (c) Calculate the velocity of the refrigerant at the exit of the pipe.
a petrol engine uses 204 kg of petrolh of calorific value 43 mjkg. the thermal efficiency of the engine is 20.
the 30 mg aircraft is climbing at the angle theta15 with a thrust t of 180 kn. at the instant shown its speed is 300
a 40 mm diameter hole is drilled 3 m deep into the steel shaft. when the two torque are applied determine a the maximum
a gas stream containing acetone vapor in air leaves a polymer drying process. a 3.0 l sample of gas at 25 deg. c 1.0
in figure below a charged particle moves into a region of uniform magnetic field goes through half a circle and then
The mean diameter of a conical friction clutch is 250mm with a width of the conical surface being 50mm. The clutch is lined with a material having a coefficient of friction of 0.25
these include micrel mm5450 mic5821 allegro a6276ea ucn5832a and texas instruments tpic6c595. these are all serial
consider the arrangement described in problem 1. a cable attached to the 100 lbm piston exerts a 200 lb force upward on
an insulated cylinder is initially filled with saturated r-134a vapor at a specified pressure. thenbsprefrigerant
Coal discharged from a dump truck with an initial velocity (v)= 1.8m/s at 50 degrees falls on conveyor belt B. Determine the required velocity v(B) of the belt if the relative velocity with which the coal hits the belt is to be vertical.
question 1 a force of 750 n acts on point a in the x direction where the cables ab ac and ad are joined as shown in
the magnitude of the velocity vector of the car is v80 fts. if the vector v forms an angle theta 0.09 rad with the
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