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International Energy Agency Hydrogen Implementing Agreement Proposed Task on Hydrogen Safety.

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Presentation on theme: "International Energy Agency Hydrogen Implementing Agreement Proposed Task on Hydrogen Safety."— Presentation transcript:

1 International Energy Agency Hydrogen Implementing Agreement Proposed Task on Hydrogen Safety

2 Goals and Objectives To develop data and other information that will facilitate the accelerated adoption of hydrogen systems. Specific objectives:  To cooperatively conduct a testing program to validate the results of numerous models that have been developed and to use the data for further refinement of those tools for use in real-life scenarios, and  to document and convey the results and data in ways that support the development and implementation of codes and standards.

3 Justification  Much is known about the properties of hydrogen, but information about hydrogen’s safety in real systems during abnormal situations is lacking.  There is much experience relative to hydrogen’s use in industry and space where it is handled in a controlled manner by trained personnel, but there is much less experience in consumer systems.  As a result, hydrogen system and component design requirements are excessive, restrictive and new installations face difficulties with approvals, insurance, and public acceptance.

4 Safety Related Issues  Current models have not been sufficiently validated by empirical data. This limits their usefulness in design refinements and for insurance purposes.  These seems to be a significant difference in assessing safety based on physical data and actual test data.  Concerns over public acceptance and product liability cannot be resolved unless fully developed codes and standards exist.

5 Hydrogen Energy Station Back Up Power Unit Storage module Hydrogen Generation and compression module Generator Set Modules

6 Hydrogen Release into Generator Room: Fast Release Vertical After Leak Fast Leak Horizontal After Leak Fast Leak Constant flow rate: CFM ( m 3 /s) Leak orifice: ¼”, from a high-pressure line Ventilation systems: down Duration: 10 sec. leak

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15 Codes & Standards Development  Based on Prototype Systems  Goal Oriented  Response to Accident or Identified Safety Concern  Quantitative Risk Analysis

16 Typical Quantitative Risk Assessment Methodology System Definition Hazard Identification (Qualitative) Risk Analysis (Failures Database) Hazard Analysis (Effects Modeling) Risk Calculations Safety/Risk CriteriaRisk Assessment Mitigation Measures Iterative Calculations Cost-Benefit Analysis Final Risk Assessment

17 Path to Commercialization

18 Expectations A cooperative program will provide safety information that will be available to all countries to assist in the commercial introduction of hydrogen systems by:  providing information on which to base Codes and Standards development;  facilitating the permitting of new installations by approving authorities; and  facilitating the availability of insurance coverage by providing information on which risk assessments can be completed.

19 Technical Approach  Preliminary Proposal – 26 experts contacted to solicit ideas and recommendations for task organization and activities  Project Definition Phase One or two workshops depending on interest in participation to develop structure, specific scope and range of activities Draft Annex Plan

20 Subtask Organization (1)  System component failures  Accidents  Human error  “Acts of God”  Terrorism Subtask 1: Testing program to evaluate the nature and consequences of safety-related events under a range of real-life scenarios, environments and mitigation measures

21 Activities Suggested by Experts  Destructive testing of hydrogen components and systems  Testing program to validate current codes and standards (e.g. electrical classification)  Testing program to develop data for design standards for hydrogen storage systems

22 Subtask Organization (2) Subtask 2: Development of targeted information packages for stakeholder groups  Permitting officials  Insurance providers  System developers  Equipment manufacturers  Early adopters of technology  Consumers and end-users

23 Suggested Activities  International Requirements for siting hydrogen technology installations (US, Canada, Japan, UK, Australia  Development of an Intelligent Virtual Fueling Station  Development of comprehensive information documents

24 A Few Examples  Hydrogen Generation and Refueling Facility, El Segundo, California  Hydrogen Fleet Demonstration Project, Palm Desert, California  Bus Fleet Demonstration, Chicago, Illinois  Underground Storage Facility, Detroit, Michigan

25 Schedule  All task activities will be guided by the Handbook of Policies and Procedures for the IEA Hydrogen Program.  Project Definition Phase (6 months) 1 st Experts Workshop (May 2004, Washington, DC) 2 nd Experts Meeting (if necessary)  Draft Annex Plan (Presented October 2004)  Task Initiation – Proposed 3-year term.


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