Comparison of the heat-transmission capacity of a solid copper rod and a heat-conducting pipe of type Super-Pipe SP 12,5 x 400.

Object:

Comparison of the heat-transmission capacity of a solid copper rod and a heat-conducting pipe of type Super-Pipe SP 12,5 x 400 sold by Gerhard Speckenheuer GmbH, Eslohe

Conduct:

A laboratory heating test was observed, in which the heat-conducting pipe and the copper rod were tested and evaluated simultaneously. The heat source was electrically heated to 140°C and held at this temperature. The heat-conducting pipe and the copper rod were then inserted simultaneously into a cold substance (20°C) in the heat block. The heat transmitted corresponds to a rise in temperature of the cold substance over the time.


figure 1: scheme of testing-instrument


Results:

After approx. two minutes, the heat-conducting pipe achieved eight times the thermal transmission of the copper rod in the horizontal position and 8.5 times the thermal transmission in the vertical position (heat source below). In the same period, the heat-conducting pipe had dissipated 12 times more heat from the source of heat than the copper rod.


Summary:

Under the same conditions, heat conducting pipes transmit several times the amount of heat transmitted by a solid copper rod.


figure 2: heat-transmission capacity

6/2016
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