Measurement of void fraction distribution in steam-water two-phase flow in a 44 bundle at 2 MPa

Liu, W.; Nagatake, Taku ; Shibata, Mitsuhiko ; Takase, Kazuyuki; Yoshida, Hiroyuki

To contribute to the clarification of the Fukushima Daiichi Accident, JAEA is working on getting instantaneous void fraction distribution data in steam water two - phase flow in rod bundle geometry under high pressure, high temperature condition, with using Wire Mesh Sensor (WMS) developed at JAEA for high pressure, high temperature condition, focusing on the low flow rate condition after the reactor scram. This paper reports the experimental results for the measured void fraction distribution in steam vapor two-phase flow in a 4 4 bundle under 1.6 MPa (202 $^{circ}$ C), 2.1 MPa (215 $^{circ}$ C) and 2.6 MPa (226 $^{circ}$ C) conditions. The data is expected to be used in the validation of the detailed two-phase flow codes TPFIT and ACE3D developed at JAEA. The time and space averaged void fraction data is also expected being used in the validation of the drift flux models implemented in the two fluids codes, such as TRACE code.

Language	:	English
Journal	:	Transactions of the American Nuclear Society
Volume	:	114
Number	:
Pages	:	p.875 - 878
Publication Year/Month	:	2016/06
Meeting title	:	American Nuclear Society 2016 Annual Meeting; Embedded Topical Meeting on Nuclear Fuels and Structural Materials (NFSM 2016)
Held date	:	2016/06
Location (city)	:	New Orleans
Location (country)	:	U.S.A.
Patent information	:
PDF	:
Paper URL	:
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	Steam Water Two-Phase Flow; Void Fraction; Rod Bundle; Wire Mesh Sensor; High Pressure; High Temperature
Research Facility	:	TPTF(小型定常二相流実験装置)
Press Release	:
Article of JAEA R&D Review	:	Visualization of Water-Steam Fractions under High-Pressure and High-Temperature Conditions in Reactor Cores; Development of Technology for the Measurement of Steam Volumetric Fractions in Fuel Assemblies with Wire-Mesh Sensors[/]
Cooperating Institute	:

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Registration No. : BB20160268
JAEA Abstracts No. : 44001326
Paper Submission No. : 17998

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