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A flue passing hot exhaust gases has a square cross section, 300mm to a side. The walls are constructed of refractory brick 150mm thick with a thermal conductivity of 0.85 W/m*K. Calculate the heat loss from the flue per unit length when the interior and exterior surfaces are maintained at 350 and 25 C, respectively. Use a grid spacing of 75 mm.
Assume a diffusion coefficient of 1 × 10-8 m2/s, that the concentrations at the high- and low-pressure sides of the plate are 2.4 and 0.6 kg of hydrogen per cubic meter of palladium, and that steady-state conditions have been attained.
in figure below a charged particle moves into a region of uniform magnetic field goes through half a circle and then
one kilogram of saturated liquid methane at 160 k is placed in an adiabatic piston-and-cylinder device and the piston
when the hydrofoil shown was tested the minimum pressure on the surface of the foil was found to be 70 kpa absolute
two refrigerators are arranged in series. one of them receives 300 kjcycle from a reservoir at 300 k. the heat
find the enthalpies and entropies at each point around a simple rankine cycle. assume that prior to entering the pump
a turbojet aircraft is flying with a velocity of 320 ms at an altitude of 9150 m where the ambient conditions are 32
a construction crew lifts approximantely 560lb of material serveral times during the day from a flatbed truck to a 32
at intel 0.00005 of manufactured chips have defects. in a day 5 million chips are produced. what is the probability
Male an Isometric Drawing of the V stop shown in Figure. Use a suitable scale to depict the view well on an A3 drawing duet.
the piston of a piston-cylinder device containing gas has a mass of 60kg and a cross-section area of 0.04m. the local atmospheric pressure is 0.97bar, and the gravitational acceleration is 9.81ms. determine the pressure inside the cylinder?
Steam at 15 bar and 350 degrees C is expanded through a 50% reaction turbine to a pressure of 0.14 bar. The stage efficiency is 80% for each stage and the reheat factor is 1.05.
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