Constructal design of regenerators

This paper documents the fundamental problem of designing a porous flow architecture that meets the requirements of facilitating flow access while storing and releasing heat to a flowing fluid. Examples of such designs are regenerators that operate cyclically in various types of heating or reheating furnaces. The main geometrical scales are determined for parallel flow channels in a fixed regenerator volume with a fixed porosity, by matching the time scales of convection along the channels and thermal diffusion. In accord with the constructal law, the route to better architectures for maximum heat transfer and minimum pressure losses is the morphing of the regenerator architecture from parallel channels to dendritic channels. © 2012 John Wiley & Sons, Ltd..

Full Text

Duke Authors

Cited Authors

  • Bejan, A; Lorente, S; Kang, DH

Published Date

  • 2013

Published In

Volume / Issue

  • 37 / 12

Start / End Page

  • 1509 - 1518

International Standard Serial Number (ISSN)

  • 0363-907X

Digital Object Identifier (DOI)

  • 10.1002/er.2960

Citation Source

  • SciVal