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A spherical thermocouple junction 1.0 mm in diameter is inserted in a combustion chamber to measure the temperature T8 of the products of combustion.
A square silicone chip 7 mm by 7 mm in size and 0.5 mm thick is mounted on a plastic substrate with its front surface cooled by a synthetic liquid
A spherical drop of water, 0.5 mm in diameter, is falling at a velocity of 2.15 m/s through dry still air at l-atm pressure. Estimate the instantaneous rate
A spherical cryosurgical probe may be imbedded in diseased tissue for the purpose of freezing, and thereby destroying, the tissue.
A spherical work piece of pure copper with a diameter of 15 mm and an emissivity of 0.5 is suspended in a large furnace with walls at a uniform temperature
A spherical vessel used as a reactor for producing pharmaceuticals has a 5-mm-thick stainless steel wall (k = 17 W/m · K) and an inner diameter of D j = 1.0 m.
A spherical tank of 3-m diameter contains a liquefied petroleum gas at -60°C. Insulation with a thermal conductivity of 0.06 W/m. K and thickness 250 mm
A spherical tank for storing liquid oxygen on the space shuttle is to be made from stainless steel of 0.80-m outer diameter and 5-mm wall thickness
A spherical droplet of alcohol, 0.5 mm in diameter, is falling freely through quiescent air at a velocity of 1.8 m/s.
A stainless steel (AISI 304) tube used to transport a chilled pharmaceutical has an inner diameter of 36 mm and a wall thickness of 2 mm
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 square (10 mm x 10 mm) silicon chip is insulated on one side and cooled on the opposite side by atmospheric air in parallel flow at U8 = 20 m/s
A small radiant source A1 emits diffusely with an intensity I1 = 1.2 x 105 W/m2 · sr. The radiation detector A2 is aligned normal to the source at a distance
A small dam, which may be idealized by a large slab 1.2 m thick, is to be completely poured in a short period of time. The hydration of the concrete results
A small disk of diameter D1 = 50 mm and emissivity e1 = 0.6 is maintained at a temperature of T1 = 900 K. The disk is covered with a hemispherical radiation
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 made of aluminum alloy 2024 with a diameter of 20 mm and a uniform temperature of 500°C is suddenly immersed in a saturated water bath
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