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Numerical study of the pressure drop phenomena in Wound Woven Wire Matrix of a Stirling Regenerator.pdf (263.4Kb)
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Title
Numerical study of the pressure drop phenomena in wound woven wire matrix of a Stirling regenerator
Author
Barrutia Sarasua, HaritzMondragon Unibertsitatea
Esnaola, Jon AnderMondragon Unibertsitatea
Tutar, MustafaMondragon Unibertsitatea
Author (from another institution)
Costa Pereira, Sol Carolina
Research Group
Mecánica de fluidos
Diseño y mecánica estructural
Published Date
2013
Publisher
Elsevier
Keywords
Stirling engine
Friction factor
Porosity
CFD ... [+]
Stirling engine
Friction factor
Porosity
CFD
Laminar flow
Turbulence flow [-]
Abstract
Friction pressure drop correlation equations are derived from a numerical study by characterizing the pressure drop phenomena through porous medium of both types namely stacked and wound woven wire ma ... [+]
Friction pressure drop correlation equations are derived from a numerical study by characterizing the pressure drop phenomena through porous medium of both types namely stacked and wound woven wire matrices of a Stirling engine regenerator over a specified range of Reynolds number, diameter and porosity. First, a finite volume method (FVM) based numerical approach is used and validated against well known experimentally obtained empirical correlations for a misaligned stacked woven wire matrix, the most widely used due to fabrication issues, for Reynolds number up to 400. The friction pressure drop correlation equation derived from the numerical results corresponds well with the experimentally obtained correlations with less than 5% deviation. Once the numerical approach is validated, the study is further extended to characterize the pressure drop phenomena in a wound woven wire matrix model of a Stirling engine regenerator for a diameter range from 0.080 to 0.110 mm and a porosity range from 0.472 to 0.638 within the same Reynolds number range. Thus, the new correlation equations are derived from this numerical study for different flow configurations of the Stirling engine regenerator. The results indicate flow nature and complex geometry dependent friction pressure drop characteristics within the present Stirling engine regenerator system. It is believed that the developed correlations can be applied with confidence as a cost effective solution to characterize and hence to optimize stacked and woven Stirling engine efficiency in the above specified ranges. [-]
URI
https://hdl.handle.net/20.500.11984/5672
Publisher’s version
https://doi.org/10.1016/j.enconman.2012.10.014
ISSN
0196-8904
Published at
Energy Conversion and Management  Vol. 67. Pp. 57–65. March, 2013
Document type
Article
Version
Postprint – Accepted Manuscript
Rights
© 2012 Elsevier
Access
Open Access
Collections
  • Articles - Engineering [443]

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