Preliminary experiments with an electro-osmotic heat pipe laboratory model
D. van den Assem
P.B. Bunk
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Abstract
Preliminary experiments have been performed with a laboratory model of an electro-osmotic heat pipe filled with ethanol. With dismounted electro-osmotic pump, the heat transport through the pipe and the temperature distribution along the pipe wall have been measured. The measurements have been performed as a function of the temperature difference across the pipe. The heat pipe performed like a CCHP imder wick limited operation conditions. Superheating of the ethanol in the evaporator caused relatively large variations' of the heat transport. With the electro-osmotic pump in operation, the heat pipe showed a fast gas production and corrosion of the electrodes of the electro-osmotic pump, whereas no measurable effect on the heat transport (< 2 W) could be observed. Most probably this disappointing result is caused by pollution of the ethanol.