AIAA HCOS Minutes - American Institute of Aeronautics … · Web viewSecretary McDougle moved to...

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AIAA Hydrogen Committee on StandardsMeeting Minutes

Telecon

January 20, 2011

Meeting Attendees:

Attendee HCOS Role OrganizationAmy Barrett AIAA Liaison American Institute of Aeronautics and

Astronautics (AIAA), Product Manager, Domestic Standards

Darren Cone Member NASA White Sands Test Facility (WSTF)Josephine Covino Member Department of Defense, Explosives Safety

BoardWilliam St. Cyr Member NASA, John C. Stennis Space CenterEric Dirschka Member NASA, Kennedy Space CenterJohn Jurns Member ASRC Aerospace Corp, NASA Glenn

Research CenterJonathan Lee Member NASA Marshall Space Flight CenterMiguel Maes Member NASA WSTFStephen H. McDougle Secretary MEI Technologies, NASA WSTFTimothee Pourpoint Member Assistant Professor, Purdue UniversityAndy Slifka Member National Institute of Standards and

Technology (NIST)Steve Summer Member Federal Aviation Administration (FAA)

Fire Safety, Atlantic CityYvonne Tran Member FAA, Office of Commercial SpaceStephen Woods Chairman Jacobs Technology, Inc, NASA WSTFJoseph Zoeckler Member NASA Glenn Research Center

Call to Order

Chairman Steve Woods called the meeting to order at 1:05 PM EST with the use of web conferencing provided by AT Conference under the auspices of the AIAA.

The meeting was conducted according to the following agenda.

Committee Businesso Introduction of Attendees/Attendanceo Approval of July 2010 Minuteso Membershipo Review of Action Itemso Review of HCOS Website featureso Review of ANSI standards requirements and AIAA standards process

Status on revision of the AIAA Hydrogen Safety Guide Status of other activities

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DRAFTo Hydrogen Hazard Analysis Protocolo AIAA Hydrogen Safety Course

News & Related Standards Activitieso Status of Hydrogen Flow Control Valve Work at WSTFo Hydrogen/helium recoveryo Facility review and training for Blue Origino Other announcements

Open Discussion Agenda and Schedule For The Next HCOS Meeting

The Powerpoint slides used for the meeting are available on the HCOS website.

Committee Business

Introduction of Attendees

HCOS Chairman Steve Woods welcomed everyone to the meeting asked each individual to introduce himself. Among the participants were prospective new members Andy Slifka (NIST), Timothee Pourpoint (Purdue University), Steven Summer (FAA) and Yvonne Tran (FAA), Darren Cone a materials subject matter specialist working with member Jonathan Lee, and Eric Dirschka acting for new member Robert Johnson or KSC. Amy Barrett was present as the AIAA Staff Liaison.

Approval of Minutes From The July 2010 Meeting

Committee business commenced with approval of the minutes from the previous meeting of the HCOS held July 27, 2010 at the AIAA Joint Propulsion Conference in Nashville, TN. Secretary McDougle moved to accept the minutes. Miguel Maes seconded the motion. The motion was subsequently approved by the telecon participants by a unanimous voice vote.

Membership Status

Secretary McDougle welcomed the new members present and Amy Barrett thanked everyone for the extraordinarily quick response for filling out and returning AIAA CoS Participation forms distributed just prior to the meeting (17 forms in 24 hours)! Secretary McDougle noted that the HCOS membership was under review based on member activity and by contacting members to ascertain their current interests. Although not specifically discussed during the meeting the following individuals are being considered as inactive:

Name Disposition

Cavage, William (FAA) Left AIAA to join Gulf Stream, continued participation from FAA sought (Steven Summer and Yvonne Tran)

Chen, Xiahou (Visteon Corp) No response to repeated attempts to contact

Iyengar,Venkat (Aerospace) No response to repeated attempts to contact

Jarmer, John (Los Alamos National Laboratory)

No response to repeated attempts to contact

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DRAFTJones, H.P. (Underwriters Laboratories) Resigned from the HCOS via e-mail. No

other UL staff interested for the time being

McIntosh, Glen (Cryogenic Technical Services)

Resigned from the HCOS via e-mail

Mihalik, Edward (ATK GASL) Resigned from the HCOS via e-mail

Ohi, Jim (National Renewable Energy Laboratory)


Qubbaj, Ala (University of Texas Pan American)

No response to repeated attempts to contact

Ringrose, Michele (AIAA) AIAA Staff Liaison, retired

Samadi, Gity (Powertech Labs) No response to repeated attempts to contact

Siegwarth, James (NIST) No response to repeated queriesRetired. James submitted Andy Slifka as his replacement.

Smith, Tim (NASA Glenn Research Center)


It was pointed out to the prospective members that AIAA membership was not a condition for participation in the AIAA HCOS.

Action Items Status

Secretary McDougle led a review of the action items that are currently open.

Mohammad Naraghi provided Dr. Pourpoint as a potential contact as a Hydrogen Hazard Assessment Protocol (HHAP) reviewer. Chairman Woods contacted Dr. Pourpoint at Purdue and sought his help in reviewing the HHAP (see below).

Item No. 38 to provide a timeline for upcoming work on the Hydrogen Hazard Analysis Protocol (HHAP) was closed. The update for the Hydrogen Safety Guide will have priority for the time being. Work on the HHAP will be resumed at a future date.

Item No. 43 to survey the Boeing Materials Group for reviewers for the Hydrogen Safety Guide was closed due to no contact with the item owner, Michelle McElvaine.

Item No. 44 to publish a draft version of the schedule for the work on the Hydrogen Safety Guide revision was completed and closed.

There were no other changes to the action item list.

Summary of New Actions Requested

The question of how members should identify their role within the HCOS to meet ANSI requirements for balanced review of standards documents arose. ANSI rules allow certain flexibility in the selection criteria for roles. Chairman Woods and Secretary McDougle will review categories selected previously by the HCOS that might find potential use for upcoming Guide review work and distribute them for comment to committee members.

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DRAFTThe object would be to identify categories that better fit member roles. This information will be used to update the AIAA Participation forms.

The question was raised if the Compressed Gas Association (CGA) was accredited with ANSI. After the meeting Amy Barrett researched the question and confirmed that CGA is accredited with ANSI.

Electronic text of the current AIAA Guide while available to NASA members of the HCOS through the NASA Standards website, is not available to non-AIAA HCOS members through the AIAA website. Amy Barrett will provide electronic text of the AIAA Hydrogen Guide to any HCOS member who requests a copy.

Amy Barrett will investigate how the “print on demand” option will work and coordinate any potential issues with the Chairman and Secretary.

John Jurns will work with Joe Zoeckler to complete the update to the Guide on the purging topic.

The topic of cold-shock recommendations needs contributions from additional authors or subject matter experts. Eric Dirschka will ask Robert Johnson if he can find KSC expertise to help. In addition, Bill St Cyr, volunteered to seek if SSC expertise could be identified to help.

AIAA HCOS Website

Secretary McDougle gave a short presentation showing how to access the HCOS website hosted by the AIAA and described the benefits of its use. Steve Summer confirmed during the meeting that the AIAA HCOS website was available to non-AIAA members. Members are encouraged to become familiar with the website as Secretary McDougle will use the site increasingly as a place to post information, minutes, etc.. (the Powerpoint slides detailing “how-to” will be attached to the email distributing these minutes).

ANSI Requirements for AIAA CoS Activities

AIAA was reaccredited recently by ANSI. Amy Barrett reviewed ANSI requirements for obtaining ANSI certification for standards documents and the AIAA standards process for CoS activities. Her Powerpoint presentation is available on the AIAA HCOS website.

Status of the AIAA Hydrogen Safety Guide Revision

Chairman Woods provided a status on development of the update to the Guide and invited authors to describe their progress to date. Work is described by activity:

Guide Format. AIAA is moving to electronic publishing. Improvements in the look and functionality of the document such as can be implemented in PDF format will be supported by AIAA Publications. This will include the use of color and simple hyperlinks. Chairman Woods will provide a draft illustrating functions to authors. Amy Barrett stated that material undergoing review should be watermarked “DRAFT”. Secretary McDougle pointed out that AIAA is an international organization with a high percentage of its members residing in foreign countries. Amy confirmed that and pointed out that everything AIAA publishes is in the public domain with respect to the International Trafficking in Arms Regulation. Therefore, authors contributing material to the Hydrogen Safety Guide may be responsible for getting that material cleared through their respective ITAR reviewers. Subsequent to the meeting, Amy confirmed via e-mail that AIAA has approximately 18% foreign membership.

Section 1 – Policy. Senior Safety Officer, Art Wood was assigned by NASA Office of Mission and Safety Assurance (OSMA) to review policy information (Section 1) in the Guide. The only

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DRAFTrecommendation was to add a reference for the recently approved NASA-STD-8719.12 which covers quantity-distance requirements for the use of propellants. It is NASA’s sister document to DoD’s 6055.9.

Section 2 – Physical Properties and Combustion updates. The Chairman described his work to update physical properties and combustion information in the Guide. This includes new physical properties information, notes on hydrogen behavior in a metallic lattice, expansion of combustion information (especially regarding deflagration), and new information on leak behavior. The draft effort is nearing completion.

Section 3 – Materials. Jonathan Lee has proposed a considerable expansion of hydrogen embrittlement information and practice. He will be assisted by Darren Cone. Because of the importance and substantial nature of the work the completion date for this effort has been extended to August-September 2011. This will allow Jonathan to take advantage of material being developed for the book he is working on with Sandia Laboratories authors. The Chairman restated the need to identify an author who can contribute in the area of composite materials and vessels for hydrogen service.

Section 4 – Facilities. The work of Ben Greene (WSTF chemistry subject matter expert) in adapting and expanding DoE developed guidelines for hydrogen work in laboratory settings was described by the Chairman. This will be incorporated into the Facilities section within the Guide.

Section 7 – Operations. John Jurns described the content and status of an update on purge recommendations for the Guide. He has requested the help of Joe Zoeckler and he expects to complete the effort within one month. The Chairman noted that the effort to update the cold-shock recommendations (current author, Miguel Maes) needs support from additional authors or subject matter experts. KSC and SSC members of the HCOS offered to help find support.

Annex update. An initiative proposed by Joan Hoopes was to improve access to electrical information. The Chairman is overseeing WSTF Publications to use “indexing” search functions to identify potential content for a “look-up” table of electrical topics that would be placed in the Annex. Joan Hoopes will review the draft.

Options for updating exclusion zone information (S. Woods and J. Covino) within the Guide’s current draft were discussed. This information considered would come from the “Correlation of Liquid Propellants-NASA Headquarter RTOP”, but it is recognized this document is currently classified as falling under the restrictions imposed by International Traffic in Arms Regulations (ITAR). Therefore some work is required to identify material for publication and to seek its review for release. Yvonne Tran (FAA) and Josephine Covino (DDESB) have expressed interest in this and will work off-line with the Chairman to explore options. Yvonne mentioned specifically that she would like to know the rationale behind the exclusion zone requirements.

The Chairman suggests that a second telecon be conducted in March-April with authors to evaluate progress on the Guide update drafts. The scheduling of the telecon will be coordinated by email in the intervening time.

Status of Other Activities

Hydrogen Hazard Analysis Protocol

In the previous HCOS meeting Mohammed Naraghi volunteered to seek reviewers from the AIAA’s Liquid Propulsion Committee and identified Dr. Timothee Pourpoint at Purdue

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DRAFTUniversity as a potential reviewer. Chairman Woods contacted Dr. Pourpoint and secured a promise of help which was delivered when Chairman Woods visited Purdue last November. Dr. Pourpoint and his graduate assistant, Tyler Voskuilen, have already sent comments and the Chairman thanked them for their efforts. The Chairman recognizes that more review is needed but that seeking assistance from the HCOS should wait until the higher priority Guide work is well in hand.

AIAA Hydrogen Safety Course

The need for a Memorandum of Understanding between NASA and AIAA for the NASA course materials is still under consideration, but there is some question as to whether it is really needed. The Powerpoint slides for the course remain ready for use in the AIAA-required format. It was noted that the initial offering at last year’s Joint Propulsion Conference was cancelled due to lack of interest (2 individuals registered, and a minimum of 4 participants are required to conduct a training session). The Chairman said the HCOS would remind the membership of upcoming course venues in advance. Amy Barrett was asked to find out from Patricia Carr how much advance notice was needed and when, in advance of a planned venue, the AIAA would decide to withdraw a course. In a response provided after the meeting Ms. Carr’s recommendation was to advertise as far in advance as possible (4 to 5 months) and that AIAA reviews course participation three weeks in advance of the planned offering.

News and Standards Related Activities

WSTF Hydrogen Flow Control Valve Work

Secretary McDougle noted that WSTF’s test work to investigate the poppet cracking problem within the hydrogen flow control valves used on the Space Shuttle is nearly complete. There is likely no further need to process additional flight valves since there is a sufficient stock of certified valves to last through the end of the Shuttle program.

Hydrogen/Helium Recovery

Chairman Woods provided a status of helium recovery work in progress and hydrogen recovery planned for the future. Both activities would capture gas that is currently vented to the atmosphere from many different types of operations.

WSTF Work with Blue Origin

Chairman Woods described how WSTF is assisting Blue Origin, a commercial space company developing a low Earth orbit (LEO) spacecraft system for space tourist flights. WSTF has reviewed hydrogen test stand safety at their facility near Van Horn, Texas and will provide hydrogen safety training.

Hydrogen Embrittlement Book in Progress with Sandia Labs

Jonathan Lee related his work as an author and collaboration with Sandia Laboratories authors on a book updating the technical community with information on hydrogen embrittlement in steel alloys used in pipelines. His contribution will cover the state-of-the-art in fracture toughness research. Publication is planned some 12 to 15 months from now.

Cost Effective Method to Measure Fracture Toughness Using Round Notched Tensile Specimens.

A rapid and cost effective testing method is under development at NASA-Marshall Space Flight Center (MSFC) to measure the plane-strain fracture toughness (K1c) of materials using simple Round Notched Tensile (RNT) specimens. Since 1960’s, the RNT specimens have been used as a material screening method to estimate the effects of hydrogen embrittlement

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DRAFTon materials. However, MSFC has recently discovered that the RNT can also be used to accurately measure the K1c and, perhaps more importantly, how hydrogen can reduce the K1c values. The conventional method to measure K1c is very complex, time consuming and expensive, so a rapid and less expensive method to measure K1c would be extremely desirable, especially for materials that are affected by gaseous hydrogen exposure.

Liquid Acquisition in Microgravity Environments

John Jurns described hydrogen projects at the Glenn Research Center to test transfer activities for moving LH2 from 1500-1600 gallon vessels into smaller 300 gallon tanks in a microgravity environment.

Daimler Benz – 125 Anniversary Round-the-World Trip

Eric Dirschka described participation by KSC as a potential east coast refueling location when Daimler’s fuel cell vehicles travel across the U.S. from Miami to San Diego then north to Vancouver, Canada. The vehicles require refueling opportunities approximately every 200 miles. Daimler will be using a mobile compressor system that will travel with the entourage. It was noted that the planned route involved U.S. Hwy 10 and should take the vehicles near Stennis Space Center in Mississippi and near WSTF which is located outside of Las Cruces, NM (on Hwy 10).

Open Discussion

The open discussion portion of the agenda was limited because the HCOS had run up to the planned 2 hour limit scheduled for the WebEx session.

Agenda and Schedule for the Next HCOS Meeting

Decisions regarding the next meeting place and time will be conducted through HCOS announcements. Current options are for a “face-to-face” meeting to be conducted at the summer JPC planned for July 31 – August 3rd at the San Diego Convention Center and for a telecon to discuss author progress in the March to April time frame.

The meeting was adjourned at 3:05 PM EST.

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