variavel0=<b>Roger R. Riehl</b> - rriehl@cet.ufsc.br Universidade Federal de Santa Catarina - EMC
<b>Jay M. Ochterbeck</b> - jochter@ces.clemson.edu Clemson University - Mech. Eng. Dept.
<b>Abstract.</b> This paper presents experimental results toward the improvement of condensation capabilities for miniature systems with restricted heat dissipation area. Two pumping systems were used in an experimental apparatus to test microchannel condensers with methanol as the working fluid. Tests were conducted for two different saturation temperatures, for a range of heat dissipation rate from 20 to 350 W and four microchannel condensers. The results showed that the condensers presented high heat transfer capabilities with Nusselt numbers on a range of 15 to 600, despite the small heat transfer areas (0.0018-0.00105 m2). A Nusselt number correlation was obtained and shown to correlate 95% of the data within an error range of less than 25%.
<b>Keywords.</b> convective condensation, microchannel, thermal control, heat transfer.