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Constructal multi-tube configuration for natural and forced convection in cross-flow

Publication ,  Journal Article
Kim, Y; Lorente, S; Bejan, A
Published in: International Journal of Heat and Mass Transfer
November 1, 2010

This paper shows how the configuration of a heat exchanger with fixed size controls the global performance. The cold-side fluid is driven by natural convection in vertical round tubes connected via two plenums. The hot-side fluid flows perpendicularly to the vertical tubes, and heats them by forced convection. The flow is laminar on both sides. The search for the flow configuration is pursued from a configuration with two tubes to three and four tubes. When the configuration has two tubes, the best design is with tubes with nearly the same diameter. When there are three tubes, it is possible to optimize the tube spacings as well. The constructal design represents a departure from the traditional approach, which consists of many tubes with the same diameter and spacing. © 2010 Elsevier Ltd. All rights reserved.

Duke Scholars

Published In

International Journal of Heat and Mass Transfer

DOI

ISSN

0017-9310

Publication Date

November 1, 2010

Volume

53

Issue

23-24

Start / End Page

5121 / 5128

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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Kim, Y., Lorente, S., & Bejan, A. (2010). Constructal multi-tube configuration for natural and forced convection in cross-flow. International Journal of Heat and Mass Transfer, 53(23–24), 5121–5128. https://doi.org/10.1016/j.ijheatmasstransfer.2010.07.053
Kim, Y., S. Lorente, and A. Bejan. “Constructal multi-tube configuration for natural and forced convection in cross-flow.” International Journal of Heat and Mass Transfer 53, no. 23–24 (November 1, 2010): 5121–28. https://doi.org/10.1016/j.ijheatmasstransfer.2010.07.053.
Kim Y, Lorente S, Bejan A. Constructal multi-tube configuration for natural and forced convection in cross-flow. International Journal of Heat and Mass Transfer. 2010 Nov 1;53(23–24):5121–8.
Kim, Y., et al. “Constructal multi-tube configuration for natural and forced convection in cross-flow.” International Journal of Heat and Mass Transfer, vol. 53, no. 23–24, Nov. 2010, pp. 5121–28. Scopus, doi:10.1016/j.ijheatmasstransfer.2010.07.053.
Kim Y, Lorente S, Bejan A. Constructal multi-tube configuration for natural and forced convection in cross-flow. International Journal of Heat and Mass Transfer. 2010 Nov 1;53(23–24):5121–5128.
Journal cover image

Published In

International Journal of Heat and Mass Transfer

DOI

ISSN

0017-9310

Publication Date

November 1, 2010

Volume

53

Issue

23-24

Start / End Page

5121 / 5128

Related Subject Headings

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