quantitative failure consequence hazard assessment for next … · 2010-09-29 · quantitative...
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Quantitative failure consequence hazard assessment for next generation CO2
pipelines
H. Mahgerefteh
Chemical Engineering, University College London
http://www.co2pipehaz.eu/
UK CCS Community Network Meeting
14-15 September 2010
University of Leeds
© University College London
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CO2PipeHaz
Start Date: 2009-12-01
Duration: 36 months
Participants:
• UCL (UK)
• GEXCON (NORWAY )
• HEALTH AND SAFETY EXECUTIVE (UK)
• DALIAN UNIVERSITY OF TECHNOLOGY (CHINA)
• INSTITUT NATIONAL DE L ENVIRONNEMENT ET DES RISQUES INERIS (FRANCE)
• NATIONAL CENTER FOR SCIENTIFIC RESEARCH "DEMOKRITOS" (GREECE)
• UNIVERSITY OF LEEDS (UK)
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Introduction
• Pressurised pipelines are considered to be the most likely method for transportation of CO2 captured from fossil fuel power plant for subsequent sequestration
• Given the enormous amounts of CO2 contained in such pipelines (typically several thousand tonnes), their safe operation is of paramount importance
• CO2 is an asphyxiant and is likely to be fatal at concentrations greater 10% v/v.
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‘Without a clear understanding of the hazards
associated with the failure of CO2 pipelines, CCS
can not be considered as a viable proposition for tackling the effects of global warming.
The CO2PipeHaz project deals with this missing link’.
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Model of CO2 release during pipeline failure
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Project Partners
INERIS (France)
Dr Ch. Proust
National Research
Centre for Physical
Sciences (Greece)
Prof. I. Economu,
Dr D. Tsangaris
University of Leeds
(UK)
Prof. M. Fairweather,
Prof. S. Falle
University College London,
(UK) Prof. H. Mahgerefteh
Dalian University of
Technology (China)
Prof. Y. Zhang
GEXCON (Norway)
Dr A. Milheim, Mr M.
Ichard, Mr I. Strovik, Mr
O.J. Taraldset, Mr T. Skjold
Health and Safety
Laboratory (UK) Dr L.
Cusco, Dr M. Wardman, Dr
S Gant, CEng J. Wilday
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Project Work Packages
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WP1: Accidental Discharge Phenomena
1. Define likely CO2 composition based on
safety, environmental and cost benefit
analysis
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WP1: Accidental Discharge Phenomena
2. Develop mathematical algorithms in conjunction
with suitable equations of state based on statistical
mechanics for CO2 and its impurities covering super-
critical to triple point regions.
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WP1: Accidental Discharge Phenomena
3. Develop a computationally efficient multi-
phase heterogeneous outflow model for the
accurate prediction of the time variant release
rate and the physical state of escaping CO2
following pipeline failure, based on a reliable
equation of state for CO2 and CO2 mixtures
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WP1: Accidental Discharge Phenomena
4. Develop multi-state dispersion models for
predicting the subsequent concentration of the
released CO2 as a function of time and distance
from the release, both in terms of a detailed near
filed and far-field modelling capability.
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WP2: Experimental Data and Validation
WP2.1:Controlled small/medium scale experiments
involving supercritical CO2 with impurities to determine:
1. the thermo-physical and thermodynamics data
required for the phase equilibrium model;
2. fluid flow pattern maps;
3. near-field solids particle size distribution and velocity
profiles for validating of the dispersion model;
4. investigate erosion impact and expansion cooling
effects of CO2
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WP2: Experimental Data and Validation
WP 2.2 Industrial Scale Experimental
Investigation (DUT)
To conduct industrial scale validation tests
of theoretical models developed under
WP’s 1.3 -1.5
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WP3: Decision Support Tools
1. Incorporate the predictive capabilities
developed in previous Work Packages,
as well as current knowledge and good
practice, into decision support tools.
2. Demonstrate the usefulness of tools
to identify potential hazards by
examining harm from vapour concentration and population density
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The Project website
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Contact details
Professor Haroun Mahgerefteh
Project Coordinator
University College London
Gower Street, London, United Kingdom
Tel: +44-2076793835
Fax: +44-2076793835
www.co2pipehaz.eu
Thank you
Questions