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An opaque horizontal plate is well insulated on the edges and the lower surface. The irradiation on the plate is 3000 W/m^2, of which 500 W/m^2 is reflected. The plate has a uniform temperature of 700K and has an emissive power of 5000 W/m^2. Determine the a) total emissivity b) absorptivity of the plate C) reflectivity also d) transmtivity.
an fcc iron-carbon alloy initially containing 0.20 wt c is carburized at an elevated temperature and in an atmosphere
the heat supplied by a heat pump used to maintain a buildings temperature is often supplemented by another source of
consider the ocean thermal energy conversion system given in the lecture notes. also take into consideration that
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Important information about Overall Heat Transfer Coefficient A copper sphere of internal diameter 2 m and wall thickness 40 mm is insulated with 75 mm of expanded polystyrene
a tensile member of aluminum alloy 2024 - 0 had an original cross - sectional area of 4. 0 square inches. if the strain
an automobile having a mass of 2000 kg deflects its suspension springs 0.02 m under static conditions. Determine the natural frecuency of the automobile in the vertical direction by assuming dumping to be negligible.
Determine the smallest gauge of copper wire which must be used if the indicated maximum temperature is to be less than 202°C - Explain what is meant by 'the law of intermediate metals' relating to temperature measurement using thermocouples.
Is there a good calculation model for the material flow through a combine harvester related to the harvesting speed?
a cylindrical duct supplies 1.20 kgs of combustion air at 150 c and 95.0 kpa to a furnace. if the velocity of the air
measuring fracture toughnessthe aim of this demonstration is to use measurements of the load required to propagate a
consider an adiabatic turbine with an isentropic efficiency of 85. the inlet pressure and temperature are 3.50 mpa and
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