Extended Surface Heat Transfer
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A small scale bench top accessory designed to measure the temperature profile and heat transfer along a horizontal Extended Surface. The resulting heat transfer gives a temperature profile that may be investigated and predicted by conventional analysis. A small diameter uniform rod is heated at one end and heat flowing along the rod by conduction is lost to the surroundings by a combination of natural convection and radiation.
Experimental Capabilities:
Determining the constant of proportionality/thermal conductivity of the rod material.
Calculating the heat transfer from an extended surface resulting from the combined modes of free convection and radiation heat transfer and comparing the result with a theoretical analysis.
Measuring the temperature distribution along an extended surface and comparing the result with a theoretical analysis.
The apparatus consists of a solid cylindrical matt black brass bar of 10mm diameter and effective length of 350mm supported in a frame and heated at one end. At intervals of 50mm from the heated end are eight thermocouples recording the surface temperature so that a temperature profile along the bar may be developed.
A small scale bench top accessory designed to measure the temperature profile and heat transfer along a horizontal extended surface
An additional thermocouple records the ambient temperature.
All instrumentation and power supplies plug directly into the Heat Transfer Service Unit and readings are displayed on digital panel meters
A small diameter uniform rod is heated at one end and heat flowing along the rod by conduction is lost to the surroundings by a combination of natural convection and radiation. The resulting heat transfer gives a temperature profile that may be investigated and predicted by conventional analysis.
The heater is located inside an insulated cylinder at one end of the apparatus. The heater input power is controlled through the variable 240v ac supply from the Heat Transfer Service Unit and is designed to operate at up to 20 Watts.
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