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Estimate the convective heat-transfer coefficient for natural convection from a horizontal steam pipe. The outside surface temperature of the insulated pipe is 80°C. The surrounding air temperature is 25°C. The outside diameter of the insulated pipe is 10 cm.
The nominal breaking strength of the rope is 10,000 lbs. Calculate how much payload this assembly can allowably pick up. Show your work.
Air enters a turbine at 40 kN/m2, 900 C, and leaves at 10 kN/m2. The flow is reversible and adiabatic. Inlet velocity is quite low and outlet velocity is 150 m/s through a cross-sectional area of 0.20 m2. Calculate the power output in kW.
the measured lapse rate at a given location was 3.8 degree f per 1000 ft and the surface temperature was 60 degree f.
Knowing that the gage pressure inside the tank is 5 MPa, determine the maximum stress and the maximum shearing stress at point L.
a cylinder with a 6.0 in diameter and 12.0 in length is put under compression load of 150 kips. the modulus of
find the complete initial and final states for the following processes t p v h u s and phase involving simple
a shaft is made of a steel alloy having an allowable shear stress of 12 ksi. If the diameter of the shaft is 1.5 in., determine the maximum torque T that can be transmitted. What would be the maximum torque T' if a 1 in. diameter hole is bored thr..
a polytropic process is one in which the pressure p and volume v are related by the formula npvcwhere c is a constant.
the total cross-sectional area of the inlet to the jet engines is 20 ft2. assume that the flow properties of the air
5 kgmin of 25 degree celsius water mixes with 7 kgmin of 72 degree celsius water in a mixing chamber. calculate the
hydrogen at 25 bar 450degc enters an adiabatic turbine and expands to 2 bar 160degc with a mass flow rate of 0.2 kgs.
a quantity of steam the original pressure and volume being 140 knm2 and 150 litres respectively is compressed to a
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