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A 1 hp electric motor drives a water pump. The pump volumetric flow rate is 2*10^3 m3/s at 300 K.
A) Determine the head loss associated with the pump if the inlet pressure is 90 kPa and the out- let pressure is 300 kPa.
B) Determine the pump efficiency. Neglect kinetic and potential energy difference between the inlet and outlet streams.
air enters the duct of an air conditioning system at 100 kpa and 100c at a volume flow rate of 15 m3min. the diameter
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.
a shaft is subjected to bending and torsion such that the bending stress on the surface is 80 mpa and the shear stress
assuming that the solid shaft has been replaced by a hollow shaft of the same cross-sectional area and with an inner diameter equal to half of its own outer diameter.
you invest 300 dollars every 3 months in a saving account that pays a nominal interest rate of 6 compounded quarterly.
water at 1mpa and 65oc enters a tube of a boiler which has a constant 160mm inside-diameter. the water leaves the tube
a closed gas turbine unit uses neon as the working fluid. there are two stages of compression with intercooling from
consider a thermal energy reservoir at 1000 k that can supply heat at a rate of 100000 kjh. determine the exergy of
heated air at 1 atm and 100 degrees f is to be transported in a 400 ft long circular plasitc duct at a rate of 12ft3s.
Calculate the heat transfer per kilogram of air between sections (1) and (2), and the stagnation pressure at section (2).
Determine (a) the horizontal line along which the shearing stress is a maximum, (b) the constant k in the following expression for the maximum shearing stress.
the 2 mg car increases its speed uniformly from rest to 25 ms in 30s up the inclined road. determine the maximum power
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