Theoretical study of steam condensation induced water hammer phenomena in horizontal pipelines

I. F. Barna, M. A. Pocsai, A. Guba, A. Imre

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Steam condensation induced water hammer (CIWH) phenomena are investigated and new theoretical results are presented. We use the WAHA3 model based on two-phase flow six firstorder partial differential equations that present one dimensional, surface averaged mass, momentum and energy balances. A second order accurate high-resolution shock-capturing numerical scheme was applied with different kind of limiters in the numerical calculations. The applied two-fluid model shows some similarities to RELAP5 which is widely used in the nuclear industry to simulate nuclear power plant accidents. This model was validated with different CIWH experiments which were performed in the PMK-2 facility, which is a full-pressure thermohydraulic model of the nuclear power plant of VVER-440/312 type in the Energy Research Center of the Hungarian Academy of Sciences and in the Rosa facility of the Japan Atomic Energy Agency. In our present study we show the first part of a planned large database which will give us the upper and lower flooding mass flow rates for various pipe geometries where CIWH can happen. Such a reliable database would be a great help for future reactor constructions and scheming.

Original languageEnglish
Pages (from-to)420-423
Number of pages4
JournalKerntechnik
Volume80
Issue number5
DOIs
Publication statusPublished - Nov 1 2015

Fingerprint

water hammer
Water hammer
Steam
steam
Condensation
condensation
Pipelines
nuclear power plants
thermohydraulics
Nuclear power plants
two fluid models
mass balance
mass flow rate
two phase flow
nuclear energy
accidents
partial differential equations
Nuclear industry
Limiters
Japan

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Safety, Risk, Reliability and Quality
  • Materials Science(all)
  • Nuclear and High Energy Physics
  • Radiation

Cite this

Theoretical study of steam condensation induced water hammer phenomena in horizontal pipelines. / Barna, I. F.; Pocsai, M. A.; Guba, A.; Imre, A.

In: Kerntechnik, Vol. 80, No. 5, 01.11.2015, p. 420-423.

Research output: Contribution to journalArticle

Barna, I. F. ; Pocsai, M. A. ; Guba, A. ; Imre, A. / Theoretical study of steam condensation induced water hammer phenomena in horizontal pipelines. In: Kerntechnik. 2015 ; Vol. 80, No. 5. pp. 420-423.
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