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As a heat transfer specialist for a large company in the mid-west, you have been asked to determine the power needed to maintain a 0.5 m2 surface at a prescribed temperature of 150 C. It is known that atmospheric air flows parallel to the flat surface (U∞ = 25 m/s, T∞ =20 C), and that the flow induces a drag force of 1N. What is the electrical power needed?
A successive approximation ADC has 4 bits and a reference voltage of 10 V. If the input voltage is 2.8 V, describe each step the ADC undergoes to determine the value of the 4 bits. What input voltage will be computed by the ADC?
there is flow between two plates as shown in the schematic. the bottom plate is stationary. the top plate is moving at
a a thermopile consisting of 5 junction pairs of chromel-constantan is used to measure a temperature difference of 50oc
1 kg of propane is contained in a piston - cylinder assembly at a constant pressure of .20 mpa heat transfer slowly to
the l1m long vertical copper tube of inner diameter di20mm and wall thickness t2mm contains liquid water at twater0
a steam power plant has a high pressure of 3 mpa and it maintains 60degc in the condenser. a condensing turbine is used
Calculate the static thrust of the turbojet engine having mass flow 88lbm/sec the ratio of air and fuel mass flowing into the turbojet is 50:1 and it's exhaust plane the velocity is 1640 ft/sec and pressure is same as ambient pressure?
determine the total exergy destruction of a brayton cycle with a source temperature of 1800k and a sink temperature of
What is the compressor's steady state response when a 30kg absorber with a stiffness of 1.3*10^5 N/m is added to the end of the beam? Please determine how to change the absorber to minimize the response of the beam.
a composite wasll is to be constructed of 14 inch stainless steel k10.5 buthr-ft-degrees f 3.0 inches of corkboard
air flows over a flat plate at a constant velocity of 20 ms and ambient conditions of 20 kpa and 20degc. the plate is
Steam enters a turbine operating at steady-state at 700 ºF and 600 lbf/in2 and leaves at 0.6 lbf/in2 with a quality of 90%. The turbine develops 12,000 hp
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