1 PRESLHY Meeting, September 18, 2018, HSL, Buxton, UK
Pre-normative REsearch for Safe use of Liquid HYdrogen
Survey of RCS and Best Practices for Liquid Hydrogen HSL, Sept 18, 2018 HySafe (Andrei V. Tchouvelev)
2 PRESLHY Meeting, September 18, 2018, HSL, Buxton, UK
ContentI. Recommended RCS Priority Topics
i. Visuals II. NFPA2 and EIGA Separation DistancesIII. Examples of Potential Case StudiesIV.ISO/TC 197 LH2 PWI
3 PRESLHY Meeting, September 18, 2018, HSL, Buxton, UK
Recommended RCS Priority Topics
Safety / separation distances: Cold gas venting (delayed ignition, thermal) Pool fire (thermal) Solid air / oxygen effect (over pressure)
Hazardous areas: Should they be different than for GH2?
Vent stacks design for cold gas venting: Orientation, pipe diameter, elevation
LH2 transport and transfer: Spill control / prevention Spill mitigation (e.g. prevention of pooling)
4 PRESLHY Meeting, September 18, 2018, HSL, Buxton, UK
Visuals for RCS Priority Topics
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NFPA2:2016 LH2 Separation Distances
Do these numbers make sense?What are correct criteria / methodology?
6 PRESLHY Meeting, September 18, 2018, HSL, Buxton, UK
EIGA Code of Practice for LH2
7 PRESLHY Meeting, September 18, 2018, HSL, Buxton, UK
Visuals for LH2 Separation Distances
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Example of Potential Case Study
Source:Hydrogen Technologies Safety Guide C. Rivkin, R. Burgess, and W. Buttner National Renewable Energy Laboratory January 2015
Objective: Determine reasonable hazard distances for LH2
EIGA DOC 06/02/E
9 PRESLHY Meeting, September 18, 2018, HSL, Buxton, UK
Example of Potential Case Study
Objective: Determine reasonable hazard distances for LH2
Source – SANDIA REPORT:Safety, Codes and Standards for Hydrogen Installations: Hydrogen Fueling System Footprint Metric DevelopmentA.P. Harris, Daniel E. Dedrick, Chris LaFleur, Chris San Marchi, Apr 2014
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Project Stages for ISO Standards Development
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PWI Stage for ISO Standards Development
An LH2 PWI can be approved on Dec 6, 2018 at ISO/TC 197 plenary meeting in Vancouver
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Questions / comments welcome!
THANK YOU FOR YOUR ATTENTION!