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A flat surface 4m wide and 10m long is exposed to air flow parrallel to its long side. The speed of the air is 55 km/h and the temperature is 5C. If the temp of the surface is constant at 12C, calculate the heat loss from the surface. Air properties at the film temperature are v= 1.4x10^-5 m^2/s, k= 0.0243 W/(mk) Pr=.0734
a piston cylinder device having an initial volume of 2 m3 initially contains steam at 10 bars and 200oc state 1. the
a thin metal plate is insulated on the back and exposed to solar radiation on thenbspfront surface. the exposed surface
steam enters an adiabatic nozzle at 4000 kpa 440oc with a velocity of 75 ms. at the exit the pressure and velocity are
in a certain processing plant 10000 kgh steam is changed from 1 mpa 400degc to 0.2 mpa 200degc in a steady-flow device
a rocket is held stationary by the horizontal force fx and the vertical force fz during a test run. the velocity and
air from a line at 12 mpa 15 deg c flows into a 500-liter rigid tank that initially contains air at 100 kpa and 15 deg
a 1 kg block of copper at 350degc is quenched in a 10 kg oil bath initially at ambient temperature of 20degc. calculate
a four-cylinder engine with a 9.5-cm bore and an 8.75-cm stroke has a 7 clearance. the engine rotates at 2500 rpm. the
Describe IN DETAIL how you could determine the required rate of heat addition or removal.
A turbine salesman makes the following claim for one of his products: Steam enters a steady-flow adiabatic turbine at 4 MPa, 600 °C with negligible velocity and exhausts at 200 kPa with a velocity of 180 m/s
a heat pump is to be used to heat a building during the winter. the building is to be maintained at 24.2 celsiius at
a six cylinder four stroke spark ignition engine operating on the ideal otto cycle takes in air at 1 atm and 18 oc and
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