Experimental characteristcs of steam bubble growth at orifices in sub-cooled liquid

W.M. Dempster, B. Arebi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The experimentally determined characteristics of steam bubble growth when generated at a number of 1 mm diameter orifices in sub-cooled water are presented. Three orifices were used with a wide range of flowrates and liquid sub-coolings. Tests were conducted at pressures of 2 and 3 bar absolute and at constant flowrate conditions. A high speed cine camera recordings were used to determine the bubble geometrical characteristics such as volume, surface area, and centroid. This data indicated significant dependencies of flowrate, pressure and liquid sub-cooling as would be expected and these have been used to provide non-dimensional correlation's for bubble detachment volume and bubble formation time. The effect of neighbouring orifices was investigated by imposing combinations of different orifice flowrates adjacent to the orifice under investigation. The results indicated that the effect of neighbouring orifices is small for the conditions tested.
LanguageEnglish
Pages467-477
Number of pages10
JournalInternational Communications in Heat and Mass Transfer
Volume28
Issue number4
DOIs
Publication statusPublished - 2001

Fingerprint

Steam
orifices
Orifices
Bubbles (in fluids)
steam
bubbles
Liquids
liquids
Cooling
cooling
Bubble formation
High speed cameras
detachment
centroids
recording
cameras
high speed
Water
water

Keywords

  • heat transfer
  • steam bubbles
  • mechanical engineering
  • steam
  • energy
  • energy studies

Cite this

@article{63d2964500c649a0a6617ffafdebc9c6,
title = "Experimental characteristcs of steam bubble growth at orifices in sub-cooled liquid",
abstract = "The experimentally determined characteristics of steam bubble growth when generated at a number of 1 mm diameter orifices in sub-cooled water are presented. Three orifices were used with a wide range of flowrates and liquid sub-coolings. Tests were conducted at pressures of 2 and 3 bar absolute and at constant flowrate conditions. A high speed cine camera recordings were used to determine the bubble geometrical characteristics such as volume, surface area, and centroid. This data indicated significant dependencies of flowrate, pressure and liquid sub-cooling as would be expected and these have been used to provide non-dimensional correlation's for bubble detachment volume and bubble formation time. The effect of neighbouring orifices was investigated by imposing combinations of different orifice flowrates adjacent to the orifice under investigation. The results indicated that the effect of neighbouring orifices is small for the conditions tested.",
keywords = "heat transfer, steam bubbles, mechanical engineering, steam, energy, energy studies",
author = "W.M. Dempster and B. Arebi",
year = "2001",
doi = "10.1016/S0735-1933(01)00251-2",
language = "English",
volume = "28",
pages = "467--477",
journal = "International Communications in Heat and Mass Transfer",
issn = "0735-1933",
number = "4",

}

Experimental characteristcs of steam bubble growth at orifices in sub-cooled liquid. / Dempster, W.M.; Arebi, B.

In: International Communications in Heat and Mass Transfer, Vol. 28, No. 4, 2001, p. 467-477.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Experimental characteristcs of steam bubble growth at orifices in sub-cooled liquid

AU - Dempster, W.M.

AU - Arebi, B.

PY - 2001

Y1 - 2001

N2 - The experimentally determined characteristics of steam bubble growth when generated at a number of 1 mm diameter orifices in sub-cooled water are presented. Three orifices were used with a wide range of flowrates and liquid sub-coolings. Tests were conducted at pressures of 2 and 3 bar absolute and at constant flowrate conditions. A high speed cine camera recordings were used to determine the bubble geometrical characteristics such as volume, surface area, and centroid. This data indicated significant dependencies of flowrate, pressure and liquid sub-cooling as would be expected and these have been used to provide non-dimensional correlation's for bubble detachment volume and bubble formation time. The effect of neighbouring orifices was investigated by imposing combinations of different orifice flowrates adjacent to the orifice under investigation. The results indicated that the effect of neighbouring orifices is small for the conditions tested.

AB - The experimentally determined characteristics of steam bubble growth when generated at a number of 1 mm diameter orifices in sub-cooled water are presented. Three orifices were used with a wide range of flowrates and liquid sub-coolings. Tests were conducted at pressures of 2 and 3 bar absolute and at constant flowrate conditions. A high speed cine camera recordings were used to determine the bubble geometrical characteristics such as volume, surface area, and centroid. This data indicated significant dependencies of flowrate, pressure and liquid sub-cooling as would be expected and these have been used to provide non-dimensional correlation's for bubble detachment volume and bubble formation time. The effect of neighbouring orifices was investigated by imposing combinations of different orifice flowrates adjacent to the orifice under investigation. The results indicated that the effect of neighbouring orifices is small for the conditions tested.

KW - heat transfer

KW - steam bubbles

KW - mechanical engineering

KW - steam

KW - energy

KW - energy studies

UR - http://dx.doi.org/10.1016/S0735-1933(01)00251-2

U2 - 10.1016/S0735-1933(01)00251-2

DO - 10.1016/S0735-1933(01)00251-2

M3 - Article

VL - 28

SP - 467

EP - 477

JO - International Communications in Heat and Mass Transfer

T2 - International Communications in Heat and Mass Transfer

JF - International Communications in Heat and Mass Transfer

SN - 0735-1933

IS - 4

ER -