Longitudinal Vortex Generation to Enhance the Performance of Compact Heat Exchangers: Flow and Heat Transfer Behavior for Plain and Interrupted Fins
Joardar, Arindom
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https://hdl.handle.net/2142/83872
Description
Title
Longitudinal Vortex Generation to Enhance the Performance of Compact Heat Exchangers: Flow and Heat Transfer Behavior for Plain and Interrupted Fins
Author(s)
Joardar, Arindom
Issue Date
2007
Doctoral Committee Chair(s)
Jacobi, Anthony M.
Department of Study
Mechanical Engineering
Discipline
Mechanical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Mechanical
Language
eng
Abstract
The numerical results are used to guide the first full-scale implementation of a VG-enhanced multi-louver heat exchanger. The heat transfer and pressure drop performance under both dry- and wet-surface conditions were determined through wind-tunnel experiments. Average heat transfer enhancements of 21% for dry conditions and 23% for wet conditions are achieved for 200≤ Re≤550, with a pressure drop penalty smaller than 7%.
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