An analysis of gas leaks from sodium into the gas cushions of a BR-10 primary loop

1991 ◽  
Vol 70 (1) ◽  
pp. 42-47
Author(s):  
I. A. Efimov ◽  
L. I. Mamaev ◽  
V. A. Marchenko ◽  
V. S. Filonov
Keyword(s):  
Primary Loop ◽  
Gas Leaks

scholarly journals Accident Analyses of Optimal Designed Primary Loop

2020 ◽  
Vol 565 ◽  
pp. 012098
Author(s):  
Lei Chen ◽  
Feifei Song ◽  
Zhen Jia
Keyword(s):  
Primary Loop

Direct imaging of shale gas leaks using passive thermal infrared hyperspectral imaging

2017 ◽  
Author(s):  
Marc-Andre Gagnon ◽  
Pierre Tremblay ◽  
Simon Savary ◽  
Vince Morton ◽  
Vincent Farley ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Shale Gas ◽  
Thermal Infrared ◽  
Direct Imaging ◽  
Gas Leaks

Study on NC in primary loop and reverse flow in SG during SBO combining with SBLOCA

2021 ◽  
Vol 141 ◽  
pp. 103983
Author(s):  
Mingrui Li ◽  
Jianli Hao ◽  
Wenzhen Chen ◽  
Xi Chu
Keyword(s):  
Reverse Flow ◽  
Primary Loop

Suggestions to the test procedure for technical means of protection of steel welded domestic LPG gas cylinders from physical destruction in fire

2021 ◽  
pp. 67-72
Author(s):  
Владимир Леонидович Малкин ◽  
Владимир Александрович Угорелов ◽  
Петр Алексеевич Леончук ◽  
Руслан Андреевич Загуменников
Keyword(s):  
Coming Out ◽  
Test Procedure ◽  
Video Recording ◽  
Heating System ◽  
Measuring System ◽  
Cylinder Surface ◽  
In Fire ◽  
Gas Leaks ◽  
The Impact ◽  
Gas Cylinders

Разработана методика проведения испытаний технических средств защиты стальных сварных бытовых баллонов для сжиженных углеводородных газов (СУГ) от физического разрушения при воздействии на них пожара. В методике содержатся требования к отбору газовых баллонов, рассматриваемым модельным сценариям, установке для испытаний, мероприятиям по подготовке испытаний, порядку их проведения, к отчету о проведении испытаний. Использование предлагаемой методики позволит с высокой степенью достоверности оценивать эффективность применения технических средств защиты стальных бытовых баллонов для СУГ от физического разрушения при воздействии пожара. The paper contains proposals for inclusion in the testing methodology for technical means of protecting gas cylinders from physical destruction. The proposals relate to the choice of typical scenarios characteristic for emergencies and fire development in a room with LPG cylinders: the ingress of cylinders into the fire center, the impact on the cylinder surface of the heat flow of the adjacent fire center; the impact on the surface of the cylinder of LPG vapors jet combustion, simulating the effect of combustion of LPG vapors coming out of the outlet of the valve (safety valve or membrane) of the adjacent cylinder. The design of the installation for testing cylinders in accordance with the above scenarios is presented. There are given requirements for the test preparation procedure, including the verification of documentation, installation of technical protective equipment, filling and delivery of cylinders, checking for gas leaks from cylinders after delivery, installation for testing. A detailed description of the installation procedure is given in accordance with the presented diagrams for various test scenarios. The basic diagrams of the measuring system for the pressure inside the cylinder, mounting of thermocouples on the wall of the cylinder, and remote supply of liquid fuel to trays are described. There is described the test procedure, which consists of turning on the recording systems, gas supplying to the installation, activating the cylinder heating system, video recording of the experiment with timing, closing the valve in front of the pressure sensor after the end of combustion, discharging LPG from the sealed cylinder to the burner. The requirements for the composition of the test report are given, which make it possible to confirm the reliability of the experiments.

Simulations of the dust behavior in the sampling and dust filters in the primary loop of HTR-10

2018 ◽  
Vol 340 ◽  
pp. 112-121 ◽  
Author(s):  
Wei Peng ◽  
Qi Sun ◽  
Feng Xie ◽  
Yueyuan Jiang
Keyword(s):  
Primary Loop

Characterization of Thermal and Acoustic Profiles of Potential Underwater Pipeline Leaks

2014 ◽  
Author(s):  
Shane Siebenaler ◽  
Eric Tervo ◽  
Mohan Kulkarni ◽  
Sandeep Patni ◽  
Glenn Gesoff
Keyword(s):  
Near Field ◽  
Thermal Response ◽  
Third Party ◽  
Analytical Models ◽  
Distributed Temperature Sensing ◽  
Offshore Installations ◽  
Underwater Pipeline ◽  
Optic Systems ◽  
Measurement Mechanism ◽  
Gas Leaks

Reliable detection of small potential leaks is a topic of significant interest for remote offshore pipelines. Potential leak cases of interest are pinhole leaks out of the bottom of the pipe due to corrosion, weld or seam cracks, or damage due to third-party contact. There are several emerging technologies that may have the potential to provide a means of detecting such leaks over long segments of underwater pipe. These technologies include distributed acoustic and distributed temperature sensing. A key element of evaluating the applicability of these systems is to characterize the behavior of leaks. It is critically important to understand how leaks behave when employing a technology that has only been previously used for other conditions. A joint-industry program was initiated to evaluate the thermal and acoustic behavior of hypothetical underwater leaks. The environments studied range from shallow, Arctic applications to deep offshore installations. Analytical models were assessed to predict the jetting behavior of simulated leaks and their near-field thermal response. This analysis was performed for both liquid and gas media. These models were validated by means of laboratory experiments. Acoustic characteristics of hypothetical liquid and gas leaks were determined by means of testing with hydrophones. This information can be leveraged by a number of technologies as the data are independent of the measurement mechanism. While the motivation of this work is to evaluate distributed fiber-optic systems, the data on leak characteristics may also provide indications on applicability of other techniques for detecting potential underwater leaks. The data from this project will allow the industry to improve the understanding of potential leaks from underwater pipelines and, hence, lay the foundation for determining appropriate detection systems.

scholarly journals A hybrid thermal video and FTIR spectrometer system for rapidly locating and characterizing gas leaks

2006 ◽  
Author(s):  
David J. Williams ◽  
Winthrop Wadsworth ◽  
Carl Salvaggio ◽  
David W. Messinger
Keyword(s):  
Ftir Spectrometer ◽  
Spectrometer System ◽  
Gas Leaks ◽  
Thermal Video
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