Three-dimensional thermal-hydraulic analysis in convex louver finned-tube heat exchangers

Jiin Yuh Jang, Kuo Pin Shieh, Herchang Ay, A. Jacobi

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

A numerical study of laminar flow and heat transfer over a two-row and three-dimensional convex louver fin-and-tube heat exchanger is presented. The effects of different geometrical parameters, including convex louver angles (θ = 15.5°, 20.0°, 24.0°), louver pitch (Lp = 0.953 mm, 1.588 mm), and fin pitch (8 fins/in., 10 fins/in., 15 fins/in.), are investigated in detail for the Reynolds number ReH (based on the fin spacing and the frontal velocity (1-5 m/s) ranging from 100 to 1100. It is found that for equal louver pitch, both the average Nusselt number and pressure drop coefficient are increased as the convex louver angle is increased; while for equal convex louver angle, they are decreased as the louver pitch is increased. A comparison of the numerical results with the available experimental data is presented.

Original languageEnglish
Pages (from-to)503-509
Number of pages7
JournalASHRAE Transactions
Volume107 PART 2
Publication statusPublished - 2001 Dec 1
Event2001 ASHRAE Annual Meeting - Cincinnati, OH, United States
Duration: 2001 Jun 242001 Jun 27

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering

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