Effects of geometrical parameters on thermo-hydraulic characteristics of perforated plates
| Autor: | S. Sunil Kumar, L. Ratna Raju, T. Nandi |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Flow (psychology) General Engineering Goodness factor Reynolds number 02 engineering and technology Mechanics Computational fluid dynamics 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences symbols.namesake Stack (abstract data type) 0103 physical sciences Heat exchanger Heat transfer symbols 010306 general physics 0210 nano-technology business Parametric statistics |
| Zdroj: | International Journal of Thermal Sciences. 124:13-22 |
| ISSN: | 1290-0729 |
| DOI: | 10.1016/j.ijthermalsci.2017.09.017 |
| Popis: | Perforated plates interspaced with spacers are effectively used in recuperative heat exchangers. In this paper, we present generalized correlations for Colburn factor and friction factor of perforated plates as functions of all geometrical variables and Reynolds number. Heat transfer and flow friction data are generated through CFD modelling on a stack of perforated plates. The model is validated with the published experimental data. Correlations are developed through regression analysis over a large number of computed data generated under varying parametric conditions. Effects of various geometrical parameters on the thermos-hydraulic characteristics of perforated plates are discussed in terms of Colburn factor, friction factor and modified area goodness factor. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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