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Consider steady heat transfer through a 5m by 6m brick wall of a house of thickness 30cm. On a day when the temperature of the outdoors is 0°C, the house is maintained at 27°C. The temperatures of the inner and outer surfaces of the brick wall are measured to be 20°C and 5°C, respectively, and the rate of heat transfer through the wall is 1035W. Determine the rate of entropy generation in the wall, and the rate of total entropy generation associated with this heat transfer process.
consider an air-water mixture of total pressure of 100 kpa and temperature of 20c and relative humidity of 59 that goes
an alluminum ball 0.5 cm in diameter initially at 250 c is dropped into a large tank of fluid with tsat100 c which is
a nucleus has 4 excited states at 0.123 mev 0.216 mev 0.401 and 0.555 mev above the ground state. if all transitions
the 2.4m wide portion abcd of an inclined cantilevered walk-way is partially supported by members ef and gh. knowing
there is truss that is an upsidown triangle with two twenty degree angles and is hooked up to four members with pin
Design the pump power and the diameter of brunching pipes D1, D2, D3, so that the flow rate coming into all buildings are Q1=Q2=Q3=4.5m^3/hr, when all four valves v, V1, V2, V3 are open.
a piston cylinder system stores 15 kg of water that is initially at 120 degrees celsius with 0.25 quality. a two step
Newtons laws describing equations of motion for balance beam with cart (ball), Need to obtain a working mathematical model of the balance beam problem, preferably with a cart, not a ball
calculate the overall efficiency the heat rate mw and the total fuel rate kgs of a combined-cycle power plant 1 if no
a fixed quantity of air at t1 60oc and p1 158 kpa is heated at constant temperature in a piston-cylinder assembly
saturated liquid water at 25 degrees c is pumped to a pressure of 5 mpa in an isothermal process. the specific work
The nominal breaking strength of the rope is 10,000 lbs. Calculate how much payload this assembly can allowably pick up. Show your work.
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