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A square plate of pure aluminum 0.5 m on a side and 16 mm thick is initially at 300°C and is suspended in a large chamber.
A square aluminum plate 5 mm thick and 200 mm on a side is heated while vertically suspended in quiescent air at 40°C.
A solar collector consists of a long duct through which air is blown; its cross section forms an equilateral triangle 1 m on a side.
A solar collector consists of a parallel plate channel that is connected to a water storage plenum at the bottom and to a heat sink at the top.
A solar water heater consists of a flat-plate collector that is coupled to a storage tank. The collector consists of a transparent cover plate
A small copper sphere, initially at a uniform, elevated temperature T(0) = T;, is suddenly immersed in a large fluid bath maintained at Tsat.
A solar collector design consists of an inner tube enclosed concentrically in an outer tube that is transparent to solar radiation.
A solid steel sphere (AISI 1010), 300 mm in diameter, is coated with a dielectric material layer of thickness 2 mm and thermal conductivity 0.04 W/m' K.
A sphere (k = 185 W/m · K, a = 7.25 x 10-5 m2/s) of 30-mm diameter whose surface is diffuse and gray with an emissivity of 0.8 is placed in a large oven
A sphere 30 mm in diameter initially at 800 K is quenched in a large bath having a constant temperature of 320 K with a convection heat transfer coefficient
A satellite reenters the earth's atmosphere at a velocity of 2700 m/s. Estimate the maximum temperature the heat shield would reach if the shield material
A scheme for concurrently heating separate water and air streams involves passing them through and over an array of tubes, respectively
A section of a composite wall with the dimensions shown below has uniform temperatures of 200°C and 50°C over the left and right surfaces
A series of water-filled trays, each 222 mm long, experiences an evaporative drying process. Dry air at T8 = 300 K flows over the trays with a velocity
A shallow layer of water is exposed to the natural environment as shown. Consider conditions for which the solar and atmospheric irradiations
A simple procedure for measuring surface convection heat transfer coefficients involves coating the surface with a thin layer of material having a precise
A shell-and-tube heat exchanger consisting of one shell pass and two tube passes is used to transfer heat from an ethylene glycol-water solution
A shell-and-tube heat exchanger with single shell and tube passes (Figure) is used to cool the oil of a large marine engine
A shell-and-tube heat exchanger is to heat an acidic liquid that flows in un-finned tubes of inside and outside diameters Di = 10 mm and Do = 11 mm
A shell-and-tube heat exchanger consists of 135 thin-walled tubes in a double-pass arrangement, each of 12.5-mm diameters with a total surface area of 47.5 m2
A refrigeration truck is traveling at 80 mph on a desert highway where the air temperature is 50°C. The body of the truck may be idealized as a rectangular box
A radiation detector has an aperture of area Ad = 10-6 m2 and is positioned at a distance of r = 1 m from a surface of area A, = 10-4 m2.
A row of regularly spaced, cylindrical heating elements (1) is used to cure a surface coating that is applied to a large panel (2) positioned below the elements
A radioactive sample is to be stored in a protective box with 4 cm thick walls having interior dimensions 4 by 4 by 12 cm
A rewritable optical disc (DVD) is formed by sandwiching a 15-nm-thick binary compound storage material between two I-mm-thick polycarbonate sheets