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Effect of lateral fin profiles on stress performance of internally finned tubes in a high temperature heat exchanger

In English

Författare

Summary, in English

The thermal stress of the internally finned bayonet tube used for high temperature heat exchangers is numerically investigated by ANSYS software. Three kinds of lateral fin profiles, namely Z-shape, S-shape and V-shape are studied and compared. The significant temperature gradient and largest Von Mises stress are acquired. The largest stress is still generated in the joint of inner fin and outer tube due to the discontinuous change of the structure. The inner fin and inner tube are proposed to not be welded together to meet the reliability. The Z-shape has the best performance in both heat transfer and reliability, and is recommended for engineering application in high temperature heat exchangers. (C) 2012 Elsevier Ltd. All rights reserved.

Avdelning/ar

Publiceringsår

2013

Språk

Engelska

Sidor

886-895

Publikation/Tidskrift/Serie

Applied Thermal Engineering

Volym

50

Issue

1

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Energy Engineering

Nyckelord

  • High temperature heat exchangers
  • Bayonet tube
  • Inner fin
  • Lateral fin
  • Stress

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1359-4311