The evolutionary design of condensers - INSA Toulouse - Institut National des Sciences Appliquées de Toulouse Access content directly
Journal Articles Journal of Applied Physics Year : 2015

The evolutionary design of condensers

Abstract

Condensers are flow architectures needed to provide high rates of condensation (or cooling) per unit volume, in enclosures with fixed volume. Their design has not changed from configurations consisting of the banks of horizontal tubes. In this paper, we outline a free path to evolving the design by exploring new features of flow configuration: flattened tubes, multiple tube sizes, arrays of flattened tubes, vertical tubes with turbulent film flow, forced convection condensation instead of gravity driven condensation, and the optimal length of a horizontal tube, i.e., the number of tubes in a column aligned with vapor cross flow. We show that the condensation density can be increased sizably by varying freely and without bias the morphology of the flow system: the shapes and arrangement of the cooled surfaces on which condensation occurs. The evolution of technology is described in terms of the special time direction of the useful (purposeful) changes in the configuration (shapes, arrangements) of surfaces on which flow/condensation occurs. This explains what "evolution" means. It is an important step for physics, not just technology.
Fichier principal
Vignette du fichier
The evolutionary design of condensers(1).pdf (824.48 Ko) Télécharger le fichier
Origin Publisher files allowed on an open archive
Loading...

Dates and versions

hal-01849740 , version 1 (13-06-2019)

Identifiers

Cite

A. Bejan, J. Lee, Sylvie Lorente, Y. Kim. The evolutionary design of condensers. Journal of Applied Physics, 2015, 117 (12), pp.125101. ⟨10.1063/1.4915505⟩. ⟨hal-01849740⟩
30 View
82 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More