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Heat transfer on sprinkled tube bundle
 Copek, Tomáš ; Pospíšil, Jiří (referee) ; Kracík, Petr (advisor)
This bachelor thesis named Heat transfer on sprinkled tube bundle deals with experimental assesment of heat transfer coefficient on sprikled tube bundle. Its goal is to measure, compare and evaluate values and trends of heat transfer coefficient on external surface according to flow rate of cooling water. Evaluation will be focused on size of pitch between tubes, type of tubes surface and influence of temperature gradient. Measurement was ongoing at atmospheric pressure. Warm water flowing in tube bundle is cooled by cold sprinkling water. Tube bundle consists of ten tubes located horizontaly beneath each other with smooth, grooved or sanblasted surface. Distance between tubes vary from 15 to 35 milimetres. Measurement of two temperature gradients 15-40 and 15-45 (15°C is temperature of sprinkling water in distribution tube; 40°C or 45°C is temperature of water entering the tube bundle) is carried out for each pitch and tube surface.
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