Abstract
maximum heat flux, and the total heat resistance of the heat pipe were investigated and discussed. Experimental results show that carbon nanotube suspensions can apparently improve the thermal performance of the heat pipe and there is an optimal carbon nanotube mass concentration (about 2.0%) to achieve the maximum heat transfer enhancement.Theoperatingpressurehasasignificantinfluenceontheenhancementofheattransfercoefficientsand slightinfluencesontheenhancementofthemaximumheat flux.Underthepressureof7.45kPa,theevaporationheat transfer coefficient and the maximum heat flux for the carbon nanotube suspension can be enhanced, at most, by about 80 and 25%, respectively, compared with those for water.
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