Preliminary communication
Published in: Holistic Approach Environ. 4(2014) 4, pp. 171 – 176
Paper reference number: HAE-72
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LONG-TERM LIQUID TRANSFER MEASUREMENTS OF FALLING FILM HEAT AT HORIZONTAL TUBE BUNDLE

Petr Kracík^*, Ladislav Šnajdárek^*, Jiří Rospíšil^*

^* Faculty of Mechanical Engineering Brno University of Technology, Czech Republic

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ABSTRACT

This paper presents the current research on heat transfer at a sprinkled tube bundle consisting of smooth tubes and located in a chamber inside of which a low pressure is created by an exhauster. It also monitors the changes of the heat transfer coefficient in relation to the speed of sprinkled and sprinkling liquid flow, thermal gradient and low pressure inside the chamber. This articles shows and compares extensive measurements in condensation and evaporation modes.

Keywords: heat transfer coefficient, evaporation, condensation, droplet, jet
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