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In the design of buildings, energy conservation requirements dictate that the exterior surface area, A" be minimized.
It has been demonstrated experimentally that the critical heat flux is highly dependent on pressure, primarily through the pressure
It is not uncommon for the night sky temperature in desert regions to drop to -40°C. If the ambient air temperature is 20°C and the convection coefficient
It is observed that a 230-mm-diameter pan of water at 23°C has a mass loss rate of 1.5 X 10-5 kg/s when the ambient air is dry and at 23°C.
In a thin-slab, continuous casting process, molten steel leaves a mold with a thin solid shell, and the molten material solidifies as the slab is quenched
In a test to determine the friction coefficient, µ, associated with a disk brake, one disk and its shaft are rotated at a constant angular velocity w
In a two-dimensional cylindrical configuration the radial (?r) and angular (?Ø) spacing's of the nodes are uniform
In the central receiver concept of a solar power plant many heliostats at ground level are used to direct a concentrated solar flux q to the receiver
In order to prevent frostbite to skiers on chair lifts, the weather report at most ski areas gives both an air temperature and the wind chill temperature
In an extrusion process, copper wire emerges from the extruder at a velocity V e and is cooled by convection heat transfer to air in cross flow over the wire
In open heart surgery under hypothermic conditions, the patient's blood is cooled before the surgery and re-warmed afterward.
In heat treating to harden steel ban bearings (c = 500 J/kg · K p = 7800 kg/m3, k = 50 W/m · K), it is desirable to increase the surface temperature for a short
In flow over a surface velocity and temperature profiles are of the forms u(y) = Ay + By2 - Cy3 and T(y) = D + Ey + Fy2- Gy3
It was stated that for incompressible liquids, flow work could usually be neglected in the steady-flow energy equation
In a manufacturing operation, a long strip sheet of metal is transported on a conveyor at a velocity of 2 m/s while a coating on its top surface is to be cured
In a Rankine power system, 1.5 kg/s of steam leaves the turbine as saturated vapor at 0.51 bar. The steam is condensed to saturated liquid
If laminar flow is induced at the surface of a disk due to rotation about its axis, the local convection coefficient is known to be a constant, h = C,
Hydrogen gas is used in a process to manufacture a sheet material of 6-mm thickness. At the end of the process, H2 remains in solution in the material
In a biomedical supplies manufacturing process, a requirement exists for a large platen that is to be maintained at 45 ± 0.25°C.
In a home furnace humidification system, water droplets of diameter D are discharged in a direction opposing the motion of warm air emerging from the heater
In a long, 30-cm square bar shown in the accompanying sketch, the left face is maintained at 40°C and the top face is maintained at 250°C.
In a paper mill drying process, a sheet of paper slurry (water-fiber mixture) has a linear velocity of 5 m1s as it is rolled.
In a particular application involving airflow over a heated surface, the boundary layer temperature distribution may be approximated as where y is the distance
In a particular application involving fluid flow at a rate nz through a circular tube of length L and diameter D, the surface heat flux is known
In a material processing experiment conducted aboard the space shuttle, a coated niobium sphere of l0-mm diameter is removed from a furnace at 900°C