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Air at 300 K and a flow rate of 3 kg/h passes upward through a 30-mm tube, as shown in the sketch. A thin film of water, also at 300 K, slowly falls downward on the inner surface of the tube. Determine the convection mass transfer coefficient for this situation.
two large flat plates are separated by a thin glycerin layer that is 5 mm thick. a force is applied to the top plate
Dry air passes over a flat plate, at the surface of which the water vapor concentration is 0.01 kmol/m3. The plate’s length is 5m (in the direction of airflow) and its width is 1m, and the free-stream velocity of the air is 2 m/s. If both the convect..
A mixture is composed of 3% air and 97% hydraulicfluid by volume. It llsa 20 cm3 container, and is initially at atmospheric pressure. The top of the container is compressed until the fluid pressure becomes 1 MPa absolute. The air adheres to the ideal..
the compression ratio of an air-standard ideal otto cycle is 10. prior to the isentropic compression process the air is
10 kg of water in a piston-cylinder arrangement exists as saturated liquidvapor at 100 kpa with a quality of 50. it is
refrigerant 134a enters the compressor of a refrigeration system as saturated vapor at 0.14mpa and leaves at
a 1000 ft. long bridge with a steel superstructure steel alloy a36 is subjected to seasonal temperature extremes of -40
two tanks are connected by a valve and line as shown below. the volumes are both 1 m3. tank anbspcontains r-134a at
Reheat, where high pressure and low pressure turbines are used, is added to a simple steam cycle to increase the steam quality at the location where the steam exits the low pressure turbine and goes to the condenser. Consider a steam cycle where the ..
an the ideal regenerative rankine cycle for a power plant shown below where there is no heat loss or pressure drops in
Is the number of prospective occupants an important consideration in the design of heating and cooling systems for classrooms? Explain.
A thin film of constant thickness, h, flows down an angled plate due to the influence of gravity. Using mue? for the viscosity and reo? for the density of the fluid, find the velocity profile u(y) following the coordinates below. Clearly state all as..
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