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Porovnání přestupu tepla v přímé a kruhově zakřivenétrubce a vliv předřazených singularit na přestup tepla v přímé trubce při proudění vodních roztoků micelárních aditiv
Mík, Václav ; Mihálka, L. ; Kořenář, Josef ; Myška, Jiří
Experiments were made on a hydraulic facility with closed loop. The influence of a preset valve and circular bend 180° on the heat transfer along the 16 mm tube was investigated. Three different concentrations of cationic surfactant Arquad S 50 (oleyltrimethylammonium chloride) in mixture with NaSal (sodium salicylate) were experimented with. The range of Reynolds numbers was 8.000-100.000 and the heat flux through the tube wall was 22 and 40 kW/m2.

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