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Determine the tube diameter that corresponds to a 10% reduction in the convection heat transfer coefficient for thermal and momentum accommodation coefficients of αt = 0.92 and αp = 0.89, respectively. Determine the channel spacing, a, that is associated with a 10% reduction in h using the same accommodation coefficients. The gas is air at T = 350 K and atmospheric pressure for both the tube and the parallel plate configurations. The flow is laminar and fully developed with constant surface heat flux.
Explain Any job in Mechanical Engineering deal with building and fixing machines. About the job that you would like to get within a few years of graduating.
the diameter of the discharge of a pump efficiency.808 is 6 inches and that of the intake pupe is 8 inches. the vacuum
It is required to design an electromechanical system to achieve a natural frequency of 1000 Hz and a Q factor of 1200. Determine the damping factor and the bandwidth of the system.
Calculate the response of a clamped-free bar to an initial displacement of 1 cm at the free end and a zero initial velocity.
Arbitrary-length dipole. A communication system uses a dipole antenna for transmission. Calculate the power density recieved 5 km away given the following: I0 = 2 A, dipole length is d = 10 mm, λ = 1 m, propagation is in free space, and θ= 90°. St..
consider a steam power cycle in which saturated water vapor at 25 bar state 1 enters an adiabatic steam turbine. at
standards for firewalls may be based on their thermal response to a prescribed radiant heat flux. consider a
a power plant generates 150 mw of electrical power. it uses a supply of 1000 mw from a geothermal source and rejects
As a 75 slug car travels along a horizontal, 3200 ft section of road, it changes speed from 5 mph to 60 mph. During this acceleration, the car gets an average MPG of 15 MPG. How efficient is the car’s engine during the acceleration assuming 1 gallon ..
a uniform stream of speed v is inclined at angle alpha from the x-axis. the flow is steadu state and two dimensional
the need arises in a laboratory for 2000cm3 of an antifreeze consisting of a 30 mole-percent solution methanol in
What action should be taken when unacceptable error is found in tracking a forecast?
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