Download or read book An Assessment of the Metals Flammability Hazard in the Kennedy Space Center Oxygen Systems written by CJ. Bryan and published by . This book was released on 1991 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eight different metals are used in the gaseous oxygen systems at the John F. Kennedy Space Center in support of Shuttle launch operations. In 1985, a recommendation was proposed that the maximum operating gaseous oxygen system pressure be reduced to 20.6 MPa (3000 psi) from the original design operating pressure of 41.2 MPa (6000 psi). To evaluate this recommendation, a study of the burn propagation and ignition characteristics of the metals in the systems was performed by the NASA White Sands Test Facility (WSTF). The tests selected for this evaluation were the promoted propagation, particle impact, and frictional heating tests. The results of this evaluation indicated that it would be more hazardous to operate at an increased flow rate of oxygen at a lower pressure because of the increase in the possibility of an ignition due to particle impact.
Download or read book Flammability and Sensitivity of Materials in Oxygen enriched Atmospheres written by Joel M. Stoltzfus and published by ASTM International. This book was released on 1991 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation Thirty-four papers presented at the symposium of the same name held in Cocoa Beach, Florida, May 1991, begin with a keynote address on combustion fundamentals of low volatility materials in oxygen-enriched atmospheres, and continue in sections on development and evaluation of test methods, ignition and combustion of nonmetals and of metals, analysis of ignition mechanisms, material selection, and miscellaneous topics. Member price, $50.40. Annotation copyrighted by Book News, Inc., Portland, OR.
Download or read book An Assessment of the Flammability Hazard of Several Corrosion Resistant Metal Alloys written by CJ. Bryan and published by . This book was released on 1993 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Space Shuttle launch environment at the John F. Kennedy Space Center is extremely corrosive. Recent corrosion studies have identified Hastelloy B-2, Haynes Alloy C-230, Hastelloy C-22, Hastelloy C-276, Hastelloy G-30, and Inconel 625 as being very resistant to this launch environment. Since several corrosion related problems have been encountered in the launch support oxygen systems, especially the expansion bellows in the liquid oxygen vacuum jacketed lines, it was decided to evaluate the flaramability of these alloys in oxygen. Therefore, the NASA White Sands Test Facility was requested to evaluate the ignition susceptibility of these alloys using particle impact, frictional heating, and promoted combustion tests. These tests indicated that the corrosion resistant alloys were more ignition resistant than the materials in the existing systems. Hastelloy C-22 expansion bellows installed in the Orbiter Fuel Cell Servicing System have performed satisfactorily since installation in 1989.
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1963 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flammability and Sensitivity written by and published by ASTM International. This book was released on with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Safe Use of Oxygen and Oxygen Systems written by and published by ASTM International. This book was released on with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paper written by and published by . This book was released on 1993 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oxygen Compatibility Assessment on Components and Systems written by J. Stoltzfus and published by . This book was released on 2006 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fire hazards are inherent in oxygen systems. Therefore, a systematic approach to identify and address these fire hazards is essential to protecting personnel and equipment. The oxygen compatibility assessment process (previously known as the oxygen hazards analysis process) designed by NASA Johnson Space Center White Sands Test Facility can be used to determine the presence of fire hazards in oxygen systems and the likelihood of a fire. This process may be used as both a design guide and an approval process. The procedure for performing an oxygen compatibility assessment is a structured step-by-step process to: determine the most severe operating conditions; assess the flammability of the system materials at the use conditions; evaluate the presence and efficacy of ignition mechanisms; assess the potential for a fire to breach the system; and determine the reaction effect (the potential loss of life, mission, and system functionality as the result of a fire). This process should be performed for each component in a system. The results of each component assessment should be recorded in an Oxygen Compatibility Assessment Table. In addition, a summary of the overall assessment should be provided in a Hazard Control Table, which provides a convenient way for readers of the document to know the hazards that exist within the entire system and the status of whether or not the recommendations have been implemented.
Download or read book Flammability and Sensitivity of Materials in Oxygen enriched Atmospheres written by Ting C. Chou and published by ASTM International. This book was released on 1997 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flammability and Sensitivity of Materials in Oxygen enriched Atmospheres written by Theodore Aaron Steinberg and published by ASTM International. This book was released on 2000 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide for Oxygen Compatibility Assessments on Oxygen Components and Systems written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2019-01-13 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding and preventing fire hazards is necessary when designing, maintaining, and operating oxygen systems. Ignition risks can be minimized by controlling heat sources and using materials that will not ignite or will not support burning in the end-use environment. Because certain materials are more susceptible to ignition in oxygen-enriched environments, a compatibility assessment should be performed before the component is introduced into an oxygen system. This document provides an overview of oxygen fire hazards and procedures that are consistent with the latest versions of American Society for Testing and Materials (ASTM) Standards G63 (1999) and G94 (2005) to address fire hazards associated with oxygen systems. This document supersedes the previous edition, NASA Technical Memorandum 104823, Guide for Oxygen Hazards Analyses on Components and Systems (1996). The step-by-step oxygen compatibility assessment method described herein (see Section 4) enables oxygen-system designers, system engineers, and facility managers to determine areas of concern with respect to oxygen compatibility and, ultimately, prevent damage to a system or injury to personnel. Rosales, Keisa R. and Shoffstall, Michael S. and Stoltzfus, Joel M. Johnson Space Center; White Sands Test Facility
Download or read book Winter Annual Meeting written by American Society of Mechanical Engineers and published by . This book was released on with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book National Fire Codes written by National Fire Protection Association and published by . This book was released on 2001 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 1572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Improved Approach for Analyzing the Oxygen Compatibility of Solvents and Other Oxygen Flammable Materials for Use in Oxygen Systems written by Joel Stoltzfus and published by . This book was released on 2016 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solvents used to clean oxygen system components must be assessed for oxygen compatibility because incompatible residue or fluid inadvertently left behind within an oxygen system can pose a flammability risk. The most recent approach focused on solvent ignition susceptibility to assess the flammability risk associated with these materials. Previous evaluations included ambient pressure liquid oxygen (LOX) mechanical impact testing (ASTM G86) and autogenous ignition temperature (AIT) testing (ASTM G72). The goal in this approach was to identify a solvent material that was not flammable in oxygen. As environmental policies restrict the available options of acceptable solvents, it has proven difficult to identify one that is not flammable in oxygen. A more rigorous oxygen compatibility approach is needed in an effort to select a new solvent for NASA applications. NASA's White Sands Test Facility proposed an approach that acknowledges oxygen flammability yet selects solvent materials based on their relative oxygen compatibility ranking, similar to that described in ASTM G63-99. Solvents are selected based on their ranking with respect to minimal ignition susceptibility, damage, and propagation potential, as well as their relative ranking when compared with other solvent materials that are successfully used in oxygen systems. Based on these comparisons, in which solvents exhibited properties within those ranges seen with proven oxygen system materials, it is believed that Solstice PF, L-14780, and Vertrel MCA would perform well with respect to oxygen compatibility.
Download or read book The Engineering Index Annual written by and published by . This book was released on 1992 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.
Download or read book High pressure Liquid and Gaseous Oxygen Impact Sensitivity Evaluation of Materials for Use at Kennedy Space Center with List of References written by Coleman J. Bryan and published by . This book was released on 1976 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
