 A new configuration of bend tubes for compound optimization of heat and fluid flowM.R. Hajmohammadi, H. Eskandari, M. Saffar-Avval and A. Campo Energy, 2013, vol. 62, issue C, 418-424 Abstract: Curved pipes constitute essential components in engineering systems such as heat exchangers, and process pipelines. In curved pipes with 180° bends, the excess pressure drop, and the excess entropy generation (through heat and fluid flow) bring forth serious penalties. To overcome these difficulties a new partially curved pipe will be examined in this paper. It consists of three straight pipe segments connected with two 90° bends. The pressure drop and entropy generation are determined numerically for several configurations of ‘partially curved’ pipes when the fluid flow is laminar, viscous and incompressible. It is shown that the new curved pipe is advantageous because the pressure drop and entropy generation are considerably reduced when implementing the optimum layout, compared to the standard case of a fully curved section with 180° bend. As an added value, it is shown that the new optimum partially curved pipes are almost independent of Reynolds and Prandtl numbers. Keywords: Bend tube; Curved tube; Optimization; Entropy generation minimization; Heat exchanger; Pressure drop (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:62:y:2013:i:c:p:418-424 DOI: 10.1016/j.energy.2013.09.046 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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