AIAA Hydrogen Committee on Standards

Status of Developments Meeting

January 20, 2011

1:00 – 3:00 PM EST

Stephen WoodsStephen McDougle

Miguel MaesNASA WSTF

Dial In: 1-866-939-8416

Participant Code: 3987489

Web Page: www.atconference.com/meet

Participant Code: 3987489

Meeting Agenda

• Committee Business

• AIAA Guide revision status

• Status of other activities

• News & Related Standards Activities

• Open Discussion

• Agenda and Schedule for Next HCOS Meeting

Committee Business

• Introduction of Attendees

• Approval of July 2010 Minutes

• Membership

• Review of Action Items

• Meeting Attendance

• HCOS Website (hosted by AIAA)

AIAA Guide Revision Status(AIAA G-095-2004)

• Improvements to document function– AIAA is moving to electronic publishing (Rodger Williams, AIAA

Publications )– Features readily implemented in PDF format acceptable

• “Prominent” data may be presented in the text• WSTF will implement multicolor figures and simple

hyperlinks (to figure or annex materials)– Document will be made available as a download– Burden for printing is on user

• Section 1 – OSMA review (Art Wood, Senior Test Safety Officer, Safety and Test Operations Division )– Material still up to date– Add NASA-STD-8719.12 along with DoD 6055.9 as a

reference document

AIAA Guide Revision Status(AIAA G-095-2004)

• Physical properties & combustion issues (S. Woods): – Revision of Section 2 draft and supporting Annex materials

nearly complete, includes:• Addition of physical properties information,• Hydrogen behavior in a metallic lattice,• Minor reorganization of health and exposure info, and• Expansion of combustion information, especially regarding

deflagration.– Additional information on leaks recommended for annex

• New information on leaks and permeation in metals (DoT)• Behavior of leaks in high pressure systems

– Leak information to aid Quantitative Risk Assessment (QRAs) (NFPA and DoE)

– Hazard information on plumes (Sandia and University of Ulster)

AIAA Guide Revision Status(AIAA G-095-2004)

• Extensive revision of metal materials information planned (Jonathan Lee and Darren Cone)

• No author yet identified to provide composite materials info

3.1 HYDROGEN EMBRITTLEMENT 3.1.1 Introduction3.1.2 Classification of Hydrogen Embrittlement 3.1.2.1 Hydrogen Environment Embrittlement (HEE) 3.1.2.2 Internal Hydrogen Embrittlement (IHE) 3.1.2.3 Hydrogen Reaction Embrittlement (HRE)3.1.3 Test Methods for Hydrogen Embrittlement3.1.3.1 Degree of Hydrogen Degradation Rating 3.1.3.2 Effects of strain rates3.1.4 Effects on Mechanical Properties by HEE 3.1.4.1 Tensile Properties 3.1.4.2 Fracture Properties 3.1.4.3 Low Cycle Fatigue 3.1.4.4 High Cycle Fatigue 3.1.4.5 Crack Growth Rte 3.1.4.6 Creep Rupture

3.1.5 Important Factors in HEE 3.1.5.1 Hydrogen gas pressure 3.1.5.2 Temperature 3.1.5.3 Heat Treatment and Product Forms 3.1.5.4 Surface Finish3.1.6 Prevention and Control Methods for Hydrogen Embrittlement 3.1.6.1 General Guidelines 3.1.6.2 ASME Hydrogen Codes and Standards 3.1.6.3 Hydrogen Gas Purity and Coating Technology 3.1.6.4 Hydrogen Baking3.1.7 Materials Selection for Hydrogen Embrittlement Reduction 3.1.7.1 Metallic Materials 3.1.7.1 Non-Metallic Materials

AIAA Guide Revision Status(AIAA G-095-2004)

• Section 4 – Expansion of laboratories material in review at WSTF (Ben Greene and Mark McClure)

• Electrical information organization (Joan Hoopes):– Place in the Annex a “quick look-up” list locating material

throughout text?

• Section 7 - Update on purge recommendations in progress (John Jurns)

• Revision initiatives that need refocusing:– No status on cold shock draft materials (Miguel Maes)– No status on exclusion zone information (S. Woods &

Josephine Covino)

Status of Other Activities• Hydrogen Hazard Analysis Protocol (HHAP)

– Required actions• Select a subcommittee chair and volunteer

reviewers• Develop a review plan

– Are there sufficient committee resources to commit to draft development?

– Purdue researchers Dr. Pourpoint and grad student Tyler Voskuilen submitted comments

• AIAA Hydrogen Safety Course– NASA slides adapted to AIAA format– First offering cancelled due to insufficient

attendees– MOU between AIAA and NASA on hold (may not be

deemed necessary)

News & Related Standards Activities

• Flow Control Valve Work (S. McDougle)

• Hydrogen/Helium Recovery (S. Woods)

• Facility review and training for Blue Origin (S. Woods)

• Other Announcements?

Discussion & Close

• Open Discussion• Agenda and Schedule for Next HCOS

Meeting

Document StructureRevisited

Contents: Foreword, Scope, Acronyms, Terms and Definitions, & Trademarks

1 Basic Hydrogen Safety Guidelines

2 Properties and Hazards of Hydrogen

3 Materials for Hydrogen Service

4 Hydrogen Facilities

5 Hydrogen Storage Vessels, Piping & Components

6 Hydrogen and Hydrogen Fire Detection

7 Operating Procedures

8 Transportation

9 Emergency Procedures

Document StructureRevisited (cont.)

Annex A Figures & Tables: A1 – Chemical and Physical Data, MSDS; A2 – Flammability, Fires, Deflagration, and Detonation; A3 – Storage Siting; A4 – Venting and Flow; A5 Materials; A6 – Hydrogen & Hydrogen Fire Detection; A7 – Accidents Involving Hydrogen

Annex B Assessment Examples

Annex C Scaling Laws, Explosions, Blast Effects, and Fragmentation

Annex D Codes, Standards, and Regulations

Annex E Relief Devices

Annex F Bibliography

Annex G Index

Requirements for Document Review

• ANSI and AIAA require that no single interest category constitutes more than one-third of the membership of the HCOS

• Three categories need to be considered:– Producer – an individual who represents and

organization that produces or sells products and services within the scope of the HCOS

– User – an individual who represents an organization that purchases or uses products and services within the scope of the HCOS

– General Interest – This category includes regulatory agencies, researchers, academia, and consumers

Requirements for Document Review (Backup Slide)

• Current member breakdown

– Gov’t User – 6

– Gov’t Special Interest – 3

– Gov’t R & D Support Contractor – 4

– Industry – 1

– Academia – 4

– Total - 18

Requirements for Document Review(Backup Slide)

• The following categories have been proposed:– Gov’t User – A government employee who manages a government program

related to materials, products, systems, or services within the scope of the committee.  Example:  H.T. Everett

– Gov’t Special Interest – A government employee who has a specific interest related to materials, products, systems, or services within the scope of the committee.   Example: Josephine Covino – safety.

– Gov’t R & D Support Contractor – A civilian contractor supporting a government program or facility related to materials, products, systems, or services within the scope of the committee.  Example:  Steve Woods, Steve McDougle

– Industry – An individual working in private industry on a project or in a field related to materials, products, systems, or services within the scope of the committee.  Example:  H.P. Jones at Underwriters Labs

– Academia – An individual working at an institution of higher learning on a project or in a field related to materials, products, systems, or services within the scope of the committee.  Example:  Dr. Mohammad Naraghi