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Constructal design of underground heat sources or sinks for the annual cycle

Publication ,  Journal Article
Rocha, LAO; Lorente, S; Bejan, A; Anderson, R
Published in: International Journal of Heat and Mass Transfer
December 1, 2012

Here we show that the heat transfer between a pipe assembly and the soil during the annual temperature cycle of a heat pump depends on the configuration of the flow system. We rely on constructal design to find the flow architecture (spacings, shapes) such that the heat transfer between the assembly and the ground is increased. The flow configuration changes freely, and its design is evolutionary. The better shapes change gradually from slender to square as the volume fraction occupied by the flow assembly increases. The heat transfer performance increases as the depth of the structure decreases, but the depth has a negligible effect on the shape of the structure. The results also show that the heat transfer performance increases as the configuration of the ground volume and the buried structure evolves to the most slender shape possible. © 2012 Elsevier Ltd. All rights reserved.

Duke Scholars

Published In

International Journal of Heat and Mass Transfer

DOI

ISSN

0017-9310

Publication Date

December 1, 2012

Volume

55

Issue

25-26

Start / End Page

7832 / 7837

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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Rocha, L. A. O., Lorente, S., Bejan, A., & Anderson, R. (2012). Constructal design of underground heat sources or sinks for the annual cycle. International Journal of Heat and Mass Transfer, 55(25–26), 7832–7837. https://doi.org/10.1016/j.ijheatmasstransfer.2012.08.010
Rocha, L. A. O., S. Lorente, A. Bejan, and R. Anderson. “Constructal design of underground heat sources or sinks for the annual cycle.” International Journal of Heat and Mass Transfer 55, no. 25–26 (December 1, 2012): 7832–37. https://doi.org/10.1016/j.ijheatmasstransfer.2012.08.010.
Rocha LAO, Lorente S, Bejan A, Anderson R. Constructal design of underground heat sources or sinks for the annual cycle. International Journal of Heat and Mass Transfer. 2012 Dec 1;55(25–26):7832–7.
Rocha, L. A. O., et al. “Constructal design of underground heat sources or sinks for the annual cycle.” International Journal of Heat and Mass Transfer, vol. 55, no. 25–26, Dec. 2012, pp. 7832–37. Scopus, doi:10.1016/j.ijheatmasstransfer.2012.08.010.
Rocha LAO, Lorente S, Bejan A, Anderson R. Constructal design of underground heat sources or sinks for the annual cycle. International Journal of Heat and Mass Transfer. 2012 Dec 1;55(25–26):7832–7837.
Journal cover image

Published In

International Journal of Heat and Mass Transfer

DOI

ISSN

0017-9310

Publication Date

December 1, 2012

Volume

55

Issue

25-26

Start / End Page

7832 / 7837

Related Subject Headings

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