Title :
Heat transfer in gas-liquid and liquid-liquid two phase plug flow systems
Author :
Janes, N. ; Muzychka, Y.S. ; Guy, B. ; Walsh, E.J. ; Walsh, P.
Author_Institution :
Fac. of Eng. & Appl. Sci., Memorial Univ. of Newfoundland, St. John´´s, NL, Canada
Abstract :
Liquid-gas and liquid-liquid two phase flows are examined. It has been recently documented that gas-liquid segmented flows offer a thermal enhancement advantage over single phase flows, since the plug flow (Taylor flow) regime produces internal circulations which enhance radial transport. Additional strategies in liquid-gas and liquid-liquid cooling are being pursued with liquid cooled heat sinks. Proper heat transfer and pressure drop modelling are required in order to maximize the benefit of segmented fluid streams. This paper will present an overview of recent strategies and models, along with new results obtained by the authors for mini-channel heat sinks. These new results highlight some operational issues which need further attention.
Keywords :
heat transfer; laminar flow; microchannel flow; two-phase flow; Taylor flow; gas-liquid flow; heat transfer; laminar Flow; liquid-liquid flows; micro-channels; segmented flows; thermal enhancement; two phase plug flow; Cooling; Fluid dynamics; Fluid flow; Heat sinks; Heat transfer; Hydraulic diameter; Plugs; Temperature; Thermal conductivity; Viscosity; Gas-Liquid Flow; Heat Transfer; Interfacial Effects; Laminar Flow; Micro-channels; Taylor Flows; Two Phase Flow;
Conference_Titel :
Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2010 12th IEEE Intersociety Conference on
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-5342-9
Electronic_ISBN :
1087-9870
DOI :
10.1109/ITHERM.2010.5501409
