Relation between temperature fluctuation of a heating surface and generation of drypatch caused by a cylindrical spacer in a vertical boiling two-phase upward flow in a narrow annular channel

T. Fukano, Shoji Mori, S. Akamatsu, A. Baba

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

When a flow obstruction such as a cylindrical spacer is set in a boiling two-phase flow within an annular channel, the inner tube of which is used as a heater, the temperature on the surface of the heater tube is severely affected by the existence of the cylindrical spacer. In some case the cylindrical spacer has a cooling effect, and in the other case it causes the dryout of the cooling water film on the heating surface resulting in the burnout of the tube. In the present paper we will discuss the temperature distributions near the cylindrical spacer and its fluctuation characteristics in relation to the change of the flow configuration near the cylindrical spacer.

Original languageEnglish
Pages (from-to)81-90
Number of pages10
JournalNuclear Engineering and Design
Volume217
Issue number1-2
DOIs
Publication statusPublished - Aug 1 2002

Fingerprint

two phase flow
Two phase flow
boiling
spacers
Boiling liquids
heating
Heating
cooling water
Cooling water
tubes
Temperature distribution
heaters
temperature
Cooling
cooling
Temperature
burnout
liquid cooling
temperature distribution
heater

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Safety, Risk, Reliability and Quality
  • Waste Management and Disposal
  • Mechanical Engineering

Cite this

@article{1a2ec7498ada467cb3ea394e4b12eed1,
title = "Relation between temperature fluctuation of a heating surface and generation of drypatch caused by a cylindrical spacer in a vertical boiling two-phase upward flow in a narrow annular channel",
abstract = "When a flow obstruction such as a cylindrical spacer is set in a boiling two-phase flow within an annular channel, the inner tube of which is used as a heater, the temperature on the surface of the heater tube is severely affected by the existence of the cylindrical spacer. In some case the cylindrical spacer has a cooling effect, and in the other case it causes the dryout of the cooling water film on the heating surface resulting in the burnout of the tube. In the present paper we will discuss the temperature distributions near the cylindrical spacer and its fluctuation characteristics in relation to the change of the flow configuration near the cylindrical spacer.",
author = "T. Fukano and Shoji Mori and S. Akamatsu and A. Baba",
year = "2002",
month = "8",
day = "1",
doi = "10.1016/S0029-5493(02)00159-0",
language = "English",
volume = "217",
pages = "81--90",
journal = "Nuclear Engineering and Design",
issn = "0029-5493",
publisher = "Elsevier BV",
number = "1-2",

}

TY - JOUR

T1 - Relation between temperature fluctuation of a heating surface and generation of drypatch caused by a cylindrical spacer in a vertical boiling two-phase upward flow in a narrow annular channel

AU - Fukano, T.

AU - Mori, Shoji

AU - Akamatsu, S.

AU - Baba, A.

PY - 2002/8/1

Y1 - 2002/8/1

N2 - When a flow obstruction such as a cylindrical spacer is set in a boiling two-phase flow within an annular channel, the inner tube of which is used as a heater, the temperature on the surface of the heater tube is severely affected by the existence of the cylindrical spacer. In some case the cylindrical spacer has a cooling effect, and in the other case it causes the dryout of the cooling water film on the heating surface resulting in the burnout of the tube. In the present paper we will discuss the temperature distributions near the cylindrical spacer and its fluctuation characteristics in relation to the change of the flow configuration near the cylindrical spacer.

AB - When a flow obstruction such as a cylindrical spacer is set in a boiling two-phase flow within an annular channel, the inner tube of which is used as a heater, the temperature on the surface of the heater tube is severely affected by the existence of the cylindrical spacer. In some case the cylindrical spacer has a cooling effect, and in the other case it causes the dryout of the cooling water film on the heating surface resulting in the burnout of the tube. In the present paper we will discuss the temperature distributions near the cylindrical spacer and its fluctuation characteristics in relation to the change of the flow configuration near the cylindrical spacer.

UR - http://www.scopus.com/inward/record.url?scp=0036706553&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036706553&partnerID=8YFLogxK

U2 - 10.1016/S0029-5493(02)00159-0

DO - 10.1016/S0029-5493(02)00159-0

M3 - Article

VL - 217

SP - 81

EP - 90

JO - Nuclear Engineering and Design

JF - Nuclear Engineering and Design

SN - 0029-5493

IS - 1-2

ER -