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Constructal tree-shaped parallel flow heat exchangers

Publication ,  Journal Article
Zimparov, VD; da Silva, AK; Bejan, A
Published in: International Journal of Heat and Mass Transfer
November 1, 2006

The paper reports the performance of balanced two-stream parallel flow heat exchangers, in which each stream flows as a tree network through its allotted space. The two trees are in parallel flow, and are arranged like two palms pressed against each other. The relationships between effectiveness and number of heat transfer units are developed for several parallel tree flow configurations: (i) constructal dichotomous trees covering uniformly a rectangular area, (ii) trees on a disk-shaped area, and (iii) trees on a square-shaped area. In configurations (ii) and (iii) each stream flows between the center and the periphery of the area. Configurations (i) and (ii) are trees with minimal resistance to fluid flow. Configuration (iii) is designed by minimizing the length of each duct in the network. The performance of the parallel flow configurations is compared with the performance of counterflow configurations. The future use of dendritic heat exchangers in devices with maximal heat transport density is proposed. © 2006 Elsevier Ltd. All rights reserved.

Duke Scholars

Published In

International Journal of Heat and Mass Transfer

DOI

ISSN

0017-9310

Publication Date

November 1, 2006

Volume

49

Issue

23-24

Start / End Page

4558 / 4566

Related Subject Headings

  • Mechanical Engineering & Transports
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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ICMJE
MLA
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Zimparov, V. D., da Silva, A. K., & Bejan, A. (2006). Constructal tree-shaped parallel flow heat exchangers. International Journal of Heat and Mass Transfer, 49(23–24), 4558–4566. https://doi.org/10.1016/j.ijheatmasstransfer.2006.04.035
Zimparov, V. D., A. K. da Silva, and A. Bejan. “Constructal tree-shaped parallel flow heat exchangers.” International Journal of Heat and Mass Transfer 49, no. 23–24 (November 1, 2006): 4558–66. https://doi.org/10.1016/j.ijheatmasstransfer.2006.04.035.
Zimparov VD, da Silva AK, Bejan A. Constructal tree-shaped parallel flow heat exchangers. International Journal of Heat and Mass Transfer. 2006 Nov 1;49(23–24):4558–66.
Zimparov, V. D., et al. “Constructal tree-shaped parallel flow heat exchangers.” International Journal of Heat and Mass Transfer, vol. 49, no. 23–24, Nov. 2006, pp. 4558–66. Scopus, doi:10.1016/j.ijheatmasstransfer.2006.04.035.
Zimparov VD, da Silva AK, Bejan A. Constructal tree-shaped parallel flow heat exchangers. International Journal of Heat and Mass Transfer. 2006 Nov 1;49(23–24):4558–4566.
Journal cover image

Published In

International Journal of Heat and Mass Transfer

DOI

ISSN

0017-9310

Publication Date

November 1, 2006

Volume

49

Issue

23-24

Start / End Page

4558 / 4566

Related Subject Headings

  • Mechanical Engineering & Transports
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences