HIGH-FLUX PROCESSES THROUGH ENHANCED HEAT TRANSFER
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BERGLES.pdf
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805.68 KB
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Author(s)
Bergles, Arthur E.
Date Issued
May 2003
Abstract
Phase-change processes, such as pool and flow boiling, are
generally very effective modes of heat transfer. However, the
demands of modern thermal systems have required the
development of methods to enhance boiling systems. While
heat fluxes above 108W/m2 have been accommodated in
carefully controlled situations, the required fluid and the
convective conditions usually dictate maximum heat fluxes
several orders of magnitude lower. Two major contemporary
areas, enhanced surfaces for pool boiling and enhanced surfaces
and inserts for forced convection boiling/vaporization, are
discussed, as they facilitate the attainment of high heat fluxes.
In addition to these passive techniques, active techniques and
compound techniques are mentioned. The taxonomy of
enhanced heat transfer is covered, and recommendations are
given for future work.
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