Experimental Study of liquid entrainment in ADS-4 branch tube with double-end inlets of air-water

Liu Wang; Lifang Liu; Ning Wang; Qionghua Sun; Kui Zhang; Xiaoliang Fu; Wenxi Tian; Bo Dong; Suizheng Qiu; G. H. Su

Experimental Study of liquid entrainment in ADS-4 branch tube with double-end inlets of air-water

Liu Wang
, Lifang Liu
, Ning Wang
, Qionghua Sun
, Kui Zhang
, Xiaoliang Fu
, Wenxi Tian
, Bo Dong
, Suizheng Qiu
, G. H. Su

School of Energy and Power Engineering

Xi'an Jiaotong University
State Power Investment Corporation Limited

Research output: Contribution to conference › Paper › peer-review

Abstract

The vertical tee branch is adopted by the fourth stage Automatic Depressurization System (ADS-4) in AP serials reactors to depressurized the system pressure of reactor vessel during Small Break Loss of Coolant Accident (SBLOCA). Large amount of coolant would be discharged by steam through ADS-4 branch according to the response sequence of Passive Residual Heat Removal System (PRHRS) which may cause the core uncovering. Entrainment experiments with double-end inlets were conducted to analysis the phenomenon of entrainment. The gas flow rate of double-end was different in this study which was more suited to the reactor than existing experiments. The data of onset of liquid entrainment and stable entrainment rate were obtained and compared with other researchers’ experimental results and entrainment models. The discrepancies were found due to the difference of geometric construction of test section and the method of gas inlets.

Original language	English
Pages	1313-1322
Number of pages	10
State	Published - 2019
Event	18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2019 - Portland, United States Duration: 18 Aug 2019 → 23 Aug 2019

Conference

Conference	18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2019
Country/Territory	United States
City	Portland
Period	18/08/19 → 23/08/19

Keywords

ADS-4
Double-end inlets
Entrainment rate
Liquid entrainment
Onset of liquid entrainment

Cite this

@conference{0e2550608ef643bc8869eaa12b541144,

title = "Experimental Study of liquid entrainment in ADS-4 branch tube with double-end inlets of air-water",

abstract = "The vertical tee branch is adopted by the fourth stage Automatic Depressurization System (ADS-4) in AP serials reactors to depressurized the system pressure of reactor vessel during Small Break Loss of Coolant Accident (SBLOCA). Large amount of coolant would be discharged by steam through ADS-4 branch according to the response sequence of Passive Residual Heat Removal System (PRHRS) which may cause the core uncovering. Entrainment experiments with double-end inlets were conducted to analysis the phenomenon of entrainment. The gas flow rate of double-end was different in this study which was more suited to the reactor than existing experiments. The data of onset of liquid entrainment and stable entrainment rate were obtained and compared with other researchers{\textquoteright} experimental results and entrainment models. The discrepancies were found due to the difference of geometric construction of test section and the method of gas inlets.",

keywords = "ADS-4, Double-end inlets, Entrainment rate, Liquid entrainment, Onset of liquid entrainment",

author = "Liu Wang and Lifang Liu and Ning Wang and Qionghua Sun and Kui Zhang and Xiaoliang Fu and Wenxi Tian and Bo Dong and Suizheng Qiu and Su, \{G. H.\}",

note = "Publisher Copyright: {\textcopyright} 2019 American Nuclear Society. All rights reserved.; 18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2019 ; Conference date: 18-08-2019 Through 23-08-2019",

year = "2019",

language = "英语",

pages = "1313--1322",

}

TY - CONF

T1 - Experimental Study of liquid entrainment in ADS-4 branch tube with double-end inlets of air-water

AU - Wang, Liu

AU - Liu, Lifang

AU - Wang, Ning

AU - Sun, Qionghua

AU - Zhang, Kui

AU - Fu, Xiaoliang

AU - Tian, Wenxi

AU - Dong, Bo

AU - Qiu, Suizheng

AU - Su, G. H.

PY - 2019

Y1 - 2019

N2 - The vertical tee branch is adopted by the fourth stage Automatic Depressurization System (ADS-4) in AP serials reactors to depressurized the system pressure of reactor vessel during Small Break Loss of Coolant Accident (SBLOCA). Large amount of coolant would be discharged by steam through ADS-4 branch according to the response sequence of Passive Residual Heat Removal System (PRHRS) which may cause the core uncovering. Entrainment experiments with double-end inlets were conducted to analysis the phenomenon of entrainment. The gas flow rate of double-end was different in this study which was more suited to the reactor than existing experiments. The data of onset of liquid entrainment and stable entrainment rate were obtained and compared with other researchers’ experimental results and entrainment models. The discrepancies were found due to the difference of geometric construction of test section and the method of gas inlets.

AB - The vertical tee branch is adopted by the fourth stage Automatic Depressurization System (ADS-4) in AP serials reactors to depressurized the system pressure of reactor vessel during Small Break Loss of Coolant Accident (SBLOCA). Large amount of coolant would be discharged by steam through ADS-4 branch according to the response sequence of Passive Residual Heat Removal System (PRHRS) which may cause the core uncovering. Entrainment experiments with double-end inlets were conducted to analysis the phenomenon of entrainment. The gas flow rate of double-end was different in this study which was more suited to the reactor than existing experiments. The data of onset of liquid entrainment and stable entrainment rate were obtained and compared with other researchers’ experimental results and entrainment models. The discrepancies were found due to the difference of geometric construction of test section and the method of gas inlets.

KW - ADS-4

KW - Double-end inlets

KW - Entrainment rate

KW - Liquid entrainment

KW - Onset of liquid entrainment

UR - https://www.scopus.com/pages/publications/85073741909

M3 - 论文

AN - SCOPUS:85073741909

SP - 1313

EP - 1322

T2 - 18th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, NURETH 2019

Y2 - 18 August 2019 through 23 August 2019

ER -

Experimental Study of liquid entrainment in ADS-4 branch tube with double-end inlets of air-water

Abstract

Conference

Keywords

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