A- A 2.0-cm-diameter horizontal heater is maintained at a surface temperature of 38 C and submerged in water at 22-C. Calculate the free-convection heat loss per unit length of the heater, if the water moved at 0.5 m/s what is the heat loss rate?

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A- A 2.0-cm-diameter horizontal heater is maintained at a surface temperature of 38 C and submerged in water
at 22-C. Calculate the free-convection heat loss per unit length of the heater, if the water moved at 0.5 m/s
what is the heat loss rate?
B. Consider a 0.6m x 0.6 m thin square plate in a room at 30°C. One side of the plate is maintained at a
temperature of 90°C. while the other side is insulated. Determine the rate of heat transfer from the plate by
natural convection if the plate is (a) vertical. (b) horizontal with hot surface facing up. and (c) horizontal with
hot surface facing down.
Transcribed Image Text:A- A 2.0-cm-diameter horizontal heater is maintained at a surface temperature of 38 C and submerged in water at 22-C. Calculate the free-convection heat loss per unit length of the heater, if the water moved at 0.5 m/s what is the heat loss rate? B. Consider a 0.6m x 0.6 m thin square plate in a room at 30°C. One side of the plate is maintained at a temperature of 90°C. while the other side is insulated. Determine the rate of heat transfer from the plate by natural convection if the plate is (a) vertical. (b) horizontal with hot surface facing up. and (c) horizontal with hot surface facing down.
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