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Air enters a radial blower with zero angular momentum. It leaves with an absolute tangential velocity, Vθ, of 200 ft/s. The rotor blade speed at rotor exit is 170 ft/s. If the stagnation pressure rise across the rotor is 0.4 psi, calculate the loss of available energy across the rotor and the rotor efficiency.
For plain carbon steel and convection (h=50 W/m^2 K) to air at 500K, Ti=300k, with a slab geometry 0.2 m thick (2L), find Boat Number. For a Fourier number (based on l=0.1m) of 0.1, is the tearm series valid? Find the time
A slab of intrinsic GaAs, 3cm long, 2cm wide, and 0.3cm thick, is exposed to light. The light is absorbed with an absorption coefficient a=500cm-1 (this means that the light intensity decreases in the material exponentially with distance t, and is pr..
Air undergoes a polytropic process in a piston cylinder from p1=1bar, T1=295K to p2=7bar. The air is modeled as an ideal gas and kinetic and potential energy effects are negligible. For a polytropic exponent of 1.6, determine the work and heat transf..
a closed cylindrical tank that is 6 ft in diameter and 26 ft long is completely filled with gasoline. the tank with its
Write a computer program that, for a body with known mass moments and products of inertia can be used to calculate the principal mass moments of inertia K1, K2, and K3 of the body at the origin
Determine whether the following functions are analytic, and find the derivative where appropriate:
a steam power plant operates on a simple ideal rankine cycle between the pressure limits of 3mpa and 50kpa. the
compressive centric forces of 160 kn are applied at both ends of the assembly shown by means of rigid plates. knowing
The amount of plastic deformation that can be performed during hot working is almost unlimited. Justify this statement.
If the inner tube wall is heated electrically at a rate (per unit length) of q'= 4000 W/m, while the outer tube wall is insulated, how long must the tubes be for the water to achieve an outlet temperature of 85°C? What is the inner tube sur- f..
Determine the percent eIongation and percent reduction in area of each specimen. Also, cIassify the materials as brittle or ductile.
Argon at 20oC and 100kPa has a velocity of 27 m/s and enters a constant diameter pipe of 18mm. As the argon passes through the pipe, it is heated in a steady flow process to 100oC. The pressure at that point is 28 kPa. Calculate the velocity at the p..
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