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
2/2008 |
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