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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.
How often would the sample have to be taken - If the objective was to determine the average value of the material in the bunker, how could this be done by making one measurement?
1.5 kg of ethane at 150 kpa 300k is heated in a two-step process using a source at 1600k. the first step is a constant
saturated steam at 2 mpa is contained in a piston-cylinder device. the initial volume is 0.25 m3. heat is slowly
2 kg of water at 10oc and atmospheric pressure are placed in a pressure cooker and heated until the water boils at
after a combustion process in a cylinder the pressure is 1200 kpa and the temperature is 350 c. the gases are expanded
the two bars shown in the figure are used to support a load p. when unloaded joint b has coordinates 0 0. after load p
r-22 in a pistoncylinder has mass 1 kg and temp. 10degc with a volume of0.02 m3 . initially state 1 the piston rests on
The temperature on the faces of a plane wall 15cm thick are 375 and 85?.The wall is constructed of a special glass with the following properties:k=0.78W/m·?,ρ=2700Kg/m³,Cp=0.84KJ/Kg·?.What is the heat flow through the wall at steady-state cond..
2 kg of water is contained in the vertical frictionless piston cylinde device.the mass of the piston is such that the
liquid water enters a manifold series of pipes at 1080 psi and 125 degf with a mass flow rate of 3.5 x 10 6 lb hr and
Two simple pendulums are related as follows. Pendulum A has a length LA and a bob of mass mA; pendulum B has a length LB and a bob of mass If the period of A is twice that of B, What is the relationship between LA and LB?
In our stress calculation example, we had an array of rod diameters and wanted to calculate the normal stress in each rod when it is loaded by an axial load P of 1000 lbs. EDU stresscalc ?
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