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Thermodynamic optimization of geometric structure in the counterflow heat exchanger for an environmental control system

Publication ,  Journal Article
Shiba, T; Bejan, A
Published in: Energy
January 1, 2001

This paper shows that the internal geometric configuration of a component can be deduced by optimizing the global performance of the installation that uses the component. The example chosen is the counterflow heat exchanger that serves as condenser in a vapor-compression-cycle refrigeration system for environmental control of aircraft. The optimization of global performace is achieved by minimizing the total power requirement or the total entropy generation rate. There are there degrees of freedom in the heat exchanger configuration, which is subjected to two global constraints: total volume, and total volume (or weight) of wall-material. Numerical results show how the optimal configuration responds to changes in specified external parameters such as refrigeration load, fan efficiency, and volume and weight. In accordance with constructal theory and design [1], it is shown that the optimal configuration is robust: major features such as the ratio of diameters and the flow lenght are relatively insensitive to changes in the external parameters. © 2001 Elsevier Science Ltd. All rights reserved.

Duke Scholars

Published In

Energy

DOI

ISSN

0360-5442

Publication Date

January 1, 2001

Volume

26

Issue

5

Start / End Page

493 / 512

Related Subject Headings

  • Energy
  • 4017 Mechanical engineering
  • 4012 Fluid mechanics and thermal engineering
  • 4008 Electrical engineering
  • 0915 Interdisciplinary Engineering
  • 0914 Resources Engineering and Extractive Metallurgy
  • 0913 Mechanical Engineering
 

Citation

APA
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ICMJE
MLA
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Shiba, T., & Bejan, A. (2001). Thermodynamic optimization of geometric structure in the counterflow heat exchanger for an environmental control system. Energy, 26(5), 493–512. https://doi.org/10.1016/S0360-5442(01)00011-1
Shiba, T., and A. Bejan. “Thermodynamic optimization of geometric structure in the counterflow heat exchanger for an environmental control system.” Energy 26, no. 5 (January 1, 2001): 493–512. https://doi.org/10.1016/S0360-5442(01)00011-1.
Shiba, T., and A. Bejan. “Thermodynamic optimization of geometric structure in the counterflow heat exchanger for an environmental control system.” Energy, vol. 26, no. 5, Jan. 2001, pp. 493–512. Scopus, doi:10.1016/S0360-5442(01)00011-1.
Journal cover image

Published In

Energy

DOI

ISSN

0360-5442

Publication Date

January 1, 2001

Volume

26

Issue

5

Start / End Page

493 / 512

Related Subject Headings

  • Energy
  • 4017 Mechanical engineering
  • 4012 Fluid mechanics and thermal engineering
  • 4008 Electrical engineering
  • 0915 Interdisciplinary Engineering
  • 0914 Resources Engineering and Extractive Metallurgy
  • 0913 Mechanical Engineering