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FUNDAMENTAL ASSESSMENTS AND NEW ENABLING PROPOSALS FOR HEAT TRANSFER CORRELATIONS AND FLOW REGIME MAPS FOR SHEAR DRIVEN CONDENSERS IN THE ANNULAR/STRATIFIED REGIME.

Authors :
Narain, A.
Ravikumar, S.
Naik, R. R.
Bhasme, S. S.
Source :
Journal of Thermal Engineering. Oct2015, Vol. 1 Issue 4, p307-321. 15p.
Publication Year :
2015

Abstract

Modern-day applications need mm-scale shear-driven flow condensers. Condenser designs need to ensure large heat transfer rates for a variety of flow conditions. For this, good estimates for heat-transfer rate correlations and correlations for the length of the annular regime (beyond which plug-slug flows typically occur) are needed. For confident use of existing correlations (particularly the more recent ones supported by large data sets) for shear-pressure driven internal condensing flows, there is a great need to relate the existing correlation development approaches to direct flow-physics based fundamental results from theory, computations, and experiments. This paper addresses this need for millimeter scale shear driven and annular condensing flows. In doing so, the paper proposes/compares a few new and reliable non-dimensional heat-transfer coefficient correlations as well as a key flow regime transition criteria/correlation. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
21487847
Volume :
1
Issue :
4
Database :
Academic Search Index
Journal :
Journal of Thermal Engineering
Publication Type :
Academic Journal
Accession number :
117348635
Full Text :
https://doi.org/10.18186/jte.47856