EXAMIANS
Heat waves
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The characteristic dimensionless groups for heat transfer to a fluid flowing through a pipe in laminar flow are
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In a laboratory test run, the rate of drying was found to be 0.5 x 10-3 kg/m².s, when the moisture content reduced from 0.4 to 0.1 on dry basis. The critical moisture content of the material is 0.08 on a dry basis. A tray dryer is used to dry 100 kg (dry basis) of the same material under identical conditions. The surface area of the material is 0.04 m²/kg of dry solid. The time required (in seconds) to reduce the moisture content of the solids from 0.3 to 0.2 (dry basis) is
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As per Kirchoffs law, the ratio of the total radiating power to the absorptivity of a body depends on the
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At what value of Prandtl number, the hydrodynamic and thermal boundary layers are identical?
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Reynold's analogy states that
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If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.
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The ratio of total radiating power to the absorptivity of the body depends upon the __________ as per Kirchoffs law.
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In case of a supercooled solution, which is on the verge of crystallisation, the free energy of the solution as compared to that of the solid is
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Conductance is given by(where, x = thickness, A = heat flow area, K = thermal conductivity.)
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