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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?
a concrete wall which has a surface area of 20 m2 and is 0.30 m thick separates conditioned room air from ambient air.
a 2.75 m3 rigid tank initially contains air at 104 kpa and 22 degrees c. the tank is connected to a supply line through
A refrigerating plant operating between temprature limit of 253k and 307k provides 4.5kJ/s of refrigerating effect. If the refrigerating efficiency of the plant is 0.76. calculate the power required to drive the plant.
design a turbojet engine to flight at an altitude of 10000m. the pressure ratio across the compressor is 3. the
a single cycle of a ramp function of voltage versus time has the form vt 100t from -0.01 to 0.01 s. using direct
two kg of ammonia are compressed adiabatically from a saturated vapor state at 20o c. the dead state is p0 1 bar t0
a balloon behaves so the pressure is p c2v13 c2 100 kpam. the balloon is blown up with air from a starting volume of
if a mass of cobalt is replaced by a compound with a density of 4.13 mgm3 and results in a mass reduction of 0.79 kg
a ceramic bidet failed catastrophically in normal use causing serious lacerations to the person concerned. the facture
if block d weighs 300 lb and block b weighs 275 lb, determine the required weight of the block c and the angle theta for equilibrium.
in an ideal dual combustion cycle conditions at the commencement of adiabatic compression are 93 kpa 0.05 m3 and 24degc
a motorcycle starts from rest at t 0 and travels along a straight road with a constant acceleration of 5 fts2 until it
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