HEAT transfer rate per unit time, h = CONVECTIVE heat transfer coefficient, A = exposed surface area, ΔT = change in TEMPERATURE. Calculation:Given:A = 0.09 M2, Q = 600 watts, h = 285.3 W/m2-deg CLet, Tw = Water temperature, Ts = surface temperature.∴ ΔT = (Ts - Tw)Substituting all the values inQ = h × A × ΔT = h × A × (Ts - Tw) 600 = 285.3 × 0.09 × (Ts - 37)∴ Surface temperature of the heater is,Ts = \(\FRAC{{600}}{{283.5 \times 0.09}} + 37\)Ts = 60.5°C

"> HEAT transfer rate per unit time, h = CONVECTIVE heat transfer coefficient, A = exposed surface area, ΔT = change in TEMPERATURE. Calculation:Given:A = 0.09 M2, Q = 600 watts, h = 285.3 W/m2-deg CLet, Tw = Water temperature, Ts = surface temperature.∴ ΔT = (Ts - Tw)Substituting all the values inQ = h × A × ΔT = h × A × (Ts - Tw) 600 = 285.3 × 0.09 × (Ts - 37)∴ Surface temperature of the heater is,Ts = \(\FRAC{{600}}{{283.5 \times 0.09}} + 37\)Ts = 60.5°C

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A electric heater of exposed surface area 0.09 m2 and output 600 watts is designed to operate fully submersed in water. When the water is at 37°C and the surface coefficient of heat transfer is 285.3 W/m2-deg C, surface temperature of the heater will be

Heat Transfer Types Convection in Heat Transfer 11 months ago

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Concept:When the heater operates in water as per design,Q = hAΔT where, Q = HEAT transfer rate per unit time, h = CONVECTIVE heat transfer coefficient, A = exposed surface area, ΔT = change in TEMPERATURE. Calculation:Given:A = 0.09 M2, Q = 600 watts, h = 285.3 W/m2-deg CLet, Tw = Water temperature, Ts = surface temperature.∴ ΔT = (Ts - Tw)Substituting all the values inQ = h × A × ΔT = h × A × (Ts - Tw) 600 = 285.3 × 0.09 × (Ts - 37)∴ Surface temperature of the heater is,Ts = \(\FRAC{{600}}{{283.5 \times 0.09}} + 37\)Ts = 60.5°C

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Posted on 26 Oct 2024, this text provides information on Heat Transfer related to Types Convection in Heat Transfer. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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