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A large manufacturing space with an average floor to ceiling height of 30 ft has a floor area of 5000 ft^2. The total infiltration rate for the space is estimated to be 1.5 air changes per hour. The inside design temperature and relative humidity are 72F and 50%. The pressure inside the conditioned space is 11.0 Psia. The building is located in Minneapolis, Minnesota. Determine the design heating load due to infiltration for this space for a 97.5% outdoor design conditions. In making your assumptions, you may take an outdoor humidity ration of 0.0001 lbH20/lbda and air specific volume under the given outdoor design conditions may be assumed as 12.2 ft^3/lbda.
A gentry structure, similar to a tire swing, is used to test the response of an airplane is hoisted back until the 20m swing cable is at theta=60. Determine the speed of the plane just before crashing into the ground at theta=15, when released from r..
a flywheel rotating freely at 1800 revmin cw is subjected to a variable ccw torque which is first applied at time t 0.
a 25-cm diameter rod is suspended horizontally in quiescent still air that is at 50degc. the rod is 250 cm long and is
Derive equation for pressure to push pig through pipe line. A 20" diameter pipe is 7243 meters long and is being cleaned by a pig apparatus. Derive an equation for the required pressure given by a compressor to push a pig through a pipe while it push..
carbon dioxide oxygen and nitrogen enter a reactor operating at steady state with equal molar flow rates. and
A piston-cylinder arrangement initially contains water at P = 300 psia and T = 500 oF. The piston is moved to a final position where the volume is twice the initial volume. During the piston movement there is a heat transfer to the water in such a ..
a small vapor-compression refrigeration unit is to be built into a recreational vehicle and is designed to operate on a
p rtvct21 use maxwell relations to prove that the entropy of the system using this substance between states p1 and p2
Air at 60° F and 40 psia is flowing in a 4" diameter pipe at 0.2 slugs/sec. The pipe undergoes a conversion to a 2" by 3" rectangular duct in which T = 150°F and P = 7 psia. Calculate the average velocity in each section.
A steel rod of circular cross section will be used to carry an axial load of 91 kips. The maximum stresses in the rod must be limited to 28 ksi in tension and 10 ksi in shear. Determine the required diameter for the rod.
a cycle consists of two isochoric and two isothermal process. the volume variation vmax vmin in the cycle is r fold
a child drops a rock into a well and hears it splash into the water at the bottom exactly 2 seconds later. if she is at
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