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A one dimensional wall of material (Kw=10w/mk) is 50 mm thick with uniform heat generation q‘‘‘=5*10^6w/m^3. The left side is exposed to a fluid hl=500w/m^2k at 20 degree Celsius. The right side has a 10mm thick plate attached that has no heat generation (Kp=15w/mk). The right side of the plate is exposed to a fluid hr=1000w/m^2k at 30 degree Celsius. What are the temperature on the left edge of the wall, the maximum temperature in the wall, and the heat flux q'' in kw/m^2 going through the right side of the plate?
some engineers have suggested that air compressed into tanks can be used to propel personal transportation vehicles.
r-134a flows through a refrigeration system at a rate of .12 kgs. at the entrance to the adiabatic compressor the
to make ice at 1 atm 101.3kpa water at 25 degrees c is cooled to 0 degrees c and then frozen to ice 0 degrees c by
a power cycle operating at steady state has a thermal efficiency of 35 and generates 100 mw of electricity while
A refrigerator uses a R-134a as the working fluid and operates on an ideal vapor-compression refrigeration cycle between 0.12 and 0.7 MPa. The mass flow rate of the refrigerant is 0.05 kg/s.
a machine with a rotating shaft has a total weight of 90 kg and is supported by springs. the damping constant for the
a positively cambered airfoil with a zero-lift angle of attack of ?3has a lift slope of 0.1 per degree.a. calculate the
a soil sample has a total unit weight of 16.97 knm3 and a void ratio of 0.84. the specific gravity of solids is 2.70.
a steel e 200 gpa yield strength 250 mpa circular rod 1 m long with a diameter of 0.25 m is put in tension. what is
crude oil flows through a level section of the alaskan pipeline at a given rate in millions of barrels per day1 barrel
question1a piston cylinder device contains 25 g of saturated water vapor that is maintained at constant pressure of 300
Find the heat flux (the rate of heat transfer divided by the surface area through which conduction occurs) through a 2 cm thick asphalt shingle roof on a cold winter morning. The shingles have a thermal conductivity of 0.75 W/m-K. The temperature ins..
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