Forced convection between a wire and an upward flow slot submerged jet: Preliminary results

Year: 2009

Authors: Baffigi F., Bartoli C.

Autors Affiliation: Department of Energertics L.Poggi, University of Pisa, Via Diotisalvi 2, Italy

Abstract: Heat transfer from a platinum wire 0.2 mm. in dia., heated by Joule effect, to an impinging upward flow submerged slot jet of distilled water is studied in two-phase conditions. A new experimental apparatus is built for this experimental activity. Different geometrical configurations were investigated in order to find out which of them could maximize the heat transfer coefficient. Its dependence on some parameters as jet velocity, heat flux and distance between exit jet and wire is also examined. In the future the results of this paper will be compared with the previous ones presented in literature, referred to cylinders of one size order bigger than the platinum wire and the same slot, all parameters being equal.

Conference title:

More Information: – Heat Transfer Division, ASME
KeyWords: Forced convection; Two-phase flow; Subcooling; Slot jet; Wire