Numerical computations on flow and heat transfer characteristics of a helically coiled heat exchanger using different turbulence models

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

18 Scopus Citations
View graph of relations

Author(s)

  • Wei-Cheng Lin
  • Yuh-Ming Ferng
  • Ching-Chang Chieng

Detail(s)

Original languageEnglish
Pages (from-to)77-86
Journal / PublicationNuclear Engineering and Design
Volume263
Publication statusPublished - 2013

Abstract

This study investigates the thermal-hydraulic characteristics of helically coiled tube heat exchangers applied in high temperature gas reactors. In the heat exchanger, the high-temperature helium and the low-temperature water flow through the shell side and the coiled tube, respectively. Three turbulence models are incorporated with Navier-Stokes equations in the numerical simulations: realizable k-ε, low-Reynolds k-ε and Reynolds stress. Existing experimental data on the Nusselt (Nu) number validate the present CFD simulations using these turbulence models. © 2013 Elsevier B.V. All rights reserved.

Citation Format(s)