2-PHASE FLOW INSTABILITIES IN A HORIZONTAL SINGLE BOILING CHANNEL

YUNCU H., YILDIRIM O., KAKAC S.

APPLIED SCIENTIFIC RESEARCH, vol.48, no.1, pp.83-104, 1991 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 1
  • Publication Date: 1991
  • Doi Number: 10.1007/bf01998667
  • Journal Name: APPLIED SCIENTIFIC RESEARCH
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, zbMATH
  • Page Numbers: pp.83-104
  • Middle East Technical University Affiliated: No

Abstract

A study of the stability of an electrically heated single channel, forced convection horizontal system was conducted by using Freon-11 as the test fluid. Two major modes of oscillations, namely, density-wave type (high frequency) and pressure-drop type (low frequency) oscillations have been observed. The steady-state operating characteristics and stable and unstable regions are determined as a function of heat flux, exit orifice diameter and mass flow rate. Different modes of oscillations and their characteristics have been investigated. The effect of the exit restriction on the system stability has also been studied.