Single and multiple discharge from a stratified two-phase region through small branches

Ibrahim Hassan, H. M. Soliman, G. E. Sims, J. E. Kowalski

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Experimental data are presented for the mass flow rate and quality during single, dual and triple discharge from a stratified air-water region through small side branches (d = 6.35 mm) installed on a semicircular wall. Dimensions of the semicircular wall and branches were chosen such that interaction among the branches is possible under certain flow conditions. All the branches were adjusted to have the same hydraulic resistance (R = 1000 (kg m)-1/2) and for the cases of dual and triple discharge, the same pressure drop AP was imposed across all active branches. Tests were conducted at two system pressures P0 = 316 and 517 kPa and the pressure drop was varied within the range 40 ≤ ΔP ≤ 235 kPa. Data analysis is presented with emphasis on the effect of wall curvature and also the effect of additional discharges on the flow from a certain branch. The present data can serve as benchmark data for testing numerical safety codes and they should guide future research on the flow from two-phase headers.

Original languageEnglish
Pages (from-to)233-245
Number of pages13
JournalNuclear Engineering and Design
Volume176
Issue number3
Publication statusPublished - 4 Nov 1997
Externally publishedYes

Fingerprint

Discharge (fluid mechanics)
Pressure drop
Codes (standards)
pressure drop
headers
mass flow rate
Flow rate
Hydraulics
hydraulics
Water
safety
Testing
Air
curvature
air
water
interactions
effect

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Civil and Structural Engineering
  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Single and multiple discharge from a stratified two-phase region through small branches. / Hassan, Ibrahim; Soliman, H. M.; Sims, G. E.; Kowalski, J. E.

In: Nuclear Engineering and Design, Vol. 176, No. 3, 04.11.1997, p. 233-245.

Research output: Contribution to journalArticle

Hassan, Ibrahim ; Soliman, H. M. ; Sims, G. E. ; Kowalski, J. E. / Single and multiple discharge from a stratified two-phase region through small branches. In: Nuclear Engineering and Design. 1997 ; Vol. 176, No. 3. pp. 233-245.
@article{f21f4dbd736649c1b4d5282b76391960,
title = "Single and multiple discharge from a stratified two-phase region through small branches",
abstract = "Experimental data are presented for the mass flow rate and quality during single, dual and triple discharge from a stratified air-water region through small side branches (d = 6.35 mm) installed on a semicircular wall. Dimensions of the semicircular wall and branches were chosen such that interaction among the branches is possible under certain flow conditions. All the branches were adjusted to have the same hydraulic resistance (R = 1000 (kg m)-1/2) and for the cases of dual and triple discharge, the same pressure drop AP was imposed across all active branches. Tests were conducted at two system pressures P0 = 316 and 517 kPa and the pressure drop was varied within the range 40 ≤ ΔP ≤ 235 kPa. Data analysis is presented with emphasis on the effect of wall curvature and also the effect of additional discharges on the flow from a certain branch. The present data can serve as benchmark data for testing numerical safety codes and they should guide future research on the flow from two-phase headers.",
author = "Ibrahim Hassan and Soliman, {H. M.} and Sims, {G. E.} and Kowalski, {J. E.}",
year = "1997",
month = "11",
day = "4",
language = "English",
volume = "176",
pages = "233--245",
journal = "Nuclear Engineering and Design",
issn = "0029-5493",
publisher = "Elsevier BV",
number = "3",

}

TY - JOUR

T1 - Single and multiple discharge from a stratified two-phase region through small branches

AU - Hassan, Ibrahim

AU - Soliman, H. M.

AU - Sims, G. E.

AU - Kowalski, J. E.

PY - 1997/11/4

Y1 - 1997/11/4

N2 - Experimental data are presented for the mass flow rate and quality during single, dual and triple discharge from a stratified air-water region through small side branches (d = 6.35 mm) installed on a semicircular wall. Dimensions of the semicircular wall and branches were chosen such that interaction among the branches is possible under certain flow conditions. All the branches were adjusted to have the same hydraulic resistance (R = 1000 (kg m)-1/2) and for the cases of dual and triple discharge, the same pressure drop AP was imposed across all active branches. Tests were conducted at two system pressures P0 = 316 and 517 kPa and the pressure drop was varied within the range 40 ≤ ΔP ≤ 235 kPa. Data analysis is presented with emphasis on the effect of wall curvature and also the effect of additional discharges on the flow from a certain branch. The present data can serve as benchmark data for testing numerical safety codes and they should guide future research on the flow from two-phase headers.

AB - Experimental data are presented for the mass flow rate and quality during single, dual and triple discharge from a stratified air-water region through small side branches (d = 6.35 mm) installed on a semicircular wall. Dimensions of the semicircular wall and branches were chosen such that interaction among the branches is possible under certain flow conditions. All the branches were adjusted to have the same hydraulic resistance (R = 1000 (kg m)-1/2) and for the cases of dual and triple discharge, the same pressure drop AP was imposed across all active branches. Tests were conducted at two system pressures P0 = 316 and 517 kPa and the pressure drop was varied within the range 40 ≤ ΔP ≤ 235 kPa. Data analysis is presented with emphasis on the effect of wall curvature and also the effect of additional discharges on the flow from a certain branch. The present data can serve as benchmark data for testing numerical safety codes and they should guide future research on the flow from two-phase headers.

UR - http://www.scopus.com/inward/record.url?scp=0031553224&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031553224&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0031553224

VL - 176

SP - 233

EP - 245

JO - Nuclear Engineering and Design

JF - Nuclear Engineering and Design

SN - 0029-5493

IS - 3

ER -