Download or read book System Evaluation of Solid Chemical Oxygen Generators written by Edward B Thompson (Jr) and published by . This book was released on 1975 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aircraft system planners are turning increasingly to the possibility of replacing LOX with alternative types of breathable oxygen supply systems that are less dependent on re-supply and maintenance. Solid chemical (chlorate candle) oxygen generation is a candidate among the alternative systems being considered. This effort concerned the test and performance evaluation of two basic types of chlorate candle oxygen generators while operating in a laboratory system console. The two candle formulations were compared for oxygen producing capacity, flowrate, and ignitability. System data on candle generator temperature and accumulator pressure was also recorded. The results of the effort established that sodium chlorate candle ignition and performance were more consistent and superior to lithium perchlorate candles.
Download or read book Determination of Chlorine in Oxygen from Solid Chemical Oxygen Generators written by A-10 Aircraft Oxygen Equipment Committee and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This ARP covers a procedure to be used in the determination of 0.05 to 0.3 ppm of chlorine in oxygen from any type of generator used for emergency or other life-support systems. The methyl orange method described can be considered as a referee technique. Instrumental analysis is also given in Section 8. The A-10 Committee concluded that this analytical method will not be updated in the future. There is no plan to develop a replacement document at this time. Therefor, the Committee tasked the sponsor to ballot to stabilize this document at the current revision level.
Download or read book Evaluation of the Scott Aviox Emergency Oxygen System During a Rapid Decompression to 25 000 Feet written by A. G. Hynes and published by . This book was released on 1980 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new emergency supplemental oxygen system is the Scott Aviox Single Pak, which utilizes solid state oxygen generators composed of sodium chlorate for oxygen production. The sodium chlorate is degraded by an exothermic chemical reaction that liberates a continuous flow of oxygen. As this method of oxygen production was novel to the Canadian Forces, a series of evaluations was undertaken to determine the overall reliability and oxygen output of the system under static conditions. Results of these tests proved favorable; therefore, to fully evaluate this system's performance, it was subjected to the next stage which consisted of use by human subjects under hypobaric conditions. During this experiment five male subjects were individually exposed to hypobaric conditions. Each was subjected to a rapid decompression from 8,000 to 25,000 feet. Arterial oxygen saturation levels were also a monitored throughout the experiment to determine the degree of protection this system afforded against hypoxia. Experimental results and observations indicated that the subjects had very little difficulty in placing the system into use after the decompression. Recorded oxygen saturation levels show that this system provided more than the required degree of hypoxia protection at the experimental altitudes.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Self Contained Aircraft Oxygen System Volume III Advanced Oxygen Concentrator Stack Development written by John H. Russell and published by . This book was released on 1973 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in solid polymer electrolyte (SPE) oxygen concentrator cell technology in the areas of high temperature operating capability, improved anode catalyst, improved current collector materials, more sophisticated cooling techniques and improved freeze/thaw capability indicated potential weight savings for the self-contained aircraft oxygen system in the order of 80% in the concentrator stack and 63% in the oxygen concentrator system. An eleven-month developmental design and test effort was performed which encompassed cell evaluation, fabrication technique development, full size cell test, 4-cell buildup test, full-size 32-cell stack test, systems analysis, and definition of ancillary components required to support the advanced oxygen concentrator stack. The program resulted in a cell design which offers a 65% stack weight savings (46% on a subsystem basis). (Author).
Download or read book Technical Information Indexes written by United States. Naval Air Systems Command and published by . This book was released on 1974 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental Test and Evaluation of a Molecular Sieve On Board Oxygen Generation System written by Matthew J. Lamb and published by . This book was released on 1978 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of the high support costs, increase in aircraft down time, and hazards associated with the use of liquid oxygen, development has been progressing on On-Board Oxygen Generation Systems which have the capability of meeting the requirements of a two man open loop breathing schedule. An evaluation program was conducted on an oxygen generator utilizing the molecular sieve concept of nitrogen absorption. The system was developed to establish unit performance in the environment anticipated during in flight operation. Oxygen concentration has been evaluated as a function of inlet air pressure.
Download or read book Investigation Analysis and Testing of Self Contained Oxygen Generators written by Christopher P. Keddy and published by BiblioGov. This book was released on 2013-06 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Self Contained Oxygen Generators (SCOGs) have widespread use in providing emergency breathing oxygen in a variety of environments including mines, submarines, spacecraft, and aircraft. These devices have definite advantages over storing of gaseous or liquid oxygen. The oxygen is not generated until a chemical briquette containing a chlorate or perchlorate oxidizer and a solid metallic fuel such as iron is ignited starting a thermal decomposition process allowing gaseous oxygen to be produced. These devices are typically very safe to store, easy to operate, and have primarily only a thermal hazard to the operator that can be controlled by barriers or furnaces. Tens of thousands of these devices are operated worldwide every year without major incident. This report examines the rare case of a SCOG whose behavior was both abnormal and lethal. This particular type of SCOG reviewed is nearly identical to a flight qualified version of SCOG slated for use on manned space vehicles. This Investigative Report is a compilation of a NASA effort in conjunction with other interested parties including military and aerospace to understand the causes of the particular SCOG accident and what preventative measures can be taken to ensure this incident is not repeated. This report details the incident and examines the root causes of the observed SCOG behavior from forensic evidence. A summary of chemical and numerical analysis is provided as a background to physical testing of identical SCOG devices. The results and findings of both small scale and full scale testing are documented on a test-by-test basis along with observations and summaries. Finally, conclusions are presented on the findings of this investigation, analysis, and testing along with suggestions on preventative measures for any entity interested in the safe use of these devices.
Download or read book National Library of Medicine Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: First multi-year cumulation covers six years: 1965-70.
Download or read book Aeromedical Evaluation of the Army Molecular Sieve Oxygen Generator AMSOG Systems written by Frank S. Pettyjohn and published by . This book was released on 1977 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular sieve technology has been considered as an alternative source of oxygen for US Army operational fixed and rotary wing aircraft. With the constraints of weight, size, and electrical power, the Army molecular sieve oxygen generator (AMSOG) appeared to meet operational needs. Initial design was predicated on direct replacement of current oxygen equipment for the two man crew OV-1 Mohawk surveillance aircraft. Initial bench and hypobaric chamber testing demonstrates a capability to provide 90-94% oxygen at sea level using engine bleed or compressed air at 40 PSIG, 20 to 22 liters per minute (LPM), normal temperature 70 deg F, pressure 760 Torr, dry (NTPD). Ninety-four percent (94%) oxygen is expected to support both physiologic needs and provide denitrogenation capabilities for US Army aircrew. Argon is concentrated to levels of 6-8% and is considered to be low; however, physiologic effects have not been fully defined. In-flight studies and toxicology evaluation are continuing. (Author).
Download or read book Continuous Flow Chemical Oxygen Generators written by A-10 Aircraft Oxygen Equipment Committee and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Aerospace Standard (AS) applies to performance and testing of solid chemical oxygen generators which produce oxygen at essentially ambient pressure for use aboard aircraft whose cabin pressure altitude does not exceed 40,000 ft (about 12,200 m). Portable chemical oxygen devices are covered by AS1303. This document has been determined to contain basic and stable technology which is not dynamic in nature.
Download or read book Chemical Oxygen Systems written by A-10 Aircraft Oxygen Equipment Committee and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Aerospace Information Report (AIR) provides an orientation regarding the general technology of chemical oxygen generators to aircraft engineers for assistance in determining whether chemical oxygen generators are an appropriate oxygen supply source for hypoxia protection in a given application and as an aid in specifying such generators. Information regarding the details of design and manufacture of chemical oxygen generators is generally beyond the scope of this document. AIR825/4A has been reaffirmed to comply with the SAE five-year review policy.
Download or read book Safety Design for Space Systems written by Gary Eugene Musgrave and published by Butterworth-Heinemann. This book was released on 2009-03-27 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in space safety lies in the acceptance of safety design and engineering as an integral part of the design and implementation process for new space systems. Safety must be seen as the principle design driver of utmost importance from the outset of the design process, which is only achieved through a culture change that moves all stakeholders toward front-end loaded safety concepts. This approach entails a common understanding and mastering of basic principles of safety design for space systems at all levels of the program organisation. Fully supported by the International Association for the Advancement of Space Safety (IAASS), written by the leading figures in the industry, with frontline experience from projects ranging from the Apollo missions, Skylab, the Space Shuttle and the International Space Station, this book provides a comprehensive reference for aerospace engineers in industry. It addresses each of the key elements that impact on space systems safety, including: the space environment (natural and induced); human physiology in space; human rating factors; emergency capabilities; launch propellants and oxidizer systems; life support systems; battery and fuel cell safety; nuclear power generators (NPG) safety; habitat activities; fire protection; safety-critical software development; collision avoidance systems design; operations and on-orbit maintenance. - The only comprehensive space systems safety reference, its must-have status within space agencies and suppliers, technical and aerospace libraries is practically guaranteed - Written by the leading figures in the industry from NASA, ESA, JAXA, (et cetera), with frontline experience from projects ranging from the Apollo missions, Skylab, the Space Shuttle, small and large satellite systems, and the International Space Station - Superb quality information for engineers, programme managers, suppliers and aerospace technologists; fully supported by the IAASS (International Association for the Advancement of Space Safety)
Download or read book Evaluation of the Oxygen Concentrator Prototypes written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-22 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: An oxygen concentrator is needed to provide enriched oxygen in support of medical contingency operations for future exploration human spaceflight programs. It would provide continuous oxygen to an ill or injured crew member in a closed cabin environment. Oxygen concentration technology is being pursued to concentrate oxygen from the ambient environment so oxygen as a consumable resource can be reduced. Because oxygen is a critical resource in manned spaceflight, using an oxygen concentrator to pull oxygen out of the ambient environment instead of using compressed oxygen can provide better optimization of resources. The overall goal of this project is to develop an oxygen concentrator module that minimizes the hardware mass, volume, and power footprint while still performing at the required clinical capabilities. Should a medical event occur that requires patient oxygenation, the release of 100 percent oxygen into a small closed cabin environment can rapidly raise oxygen levels to the vehicles fire limit. The use of an oxygen concentrator to enrich oxygen from the ambient air and concentrate it to the point where it can be used for medical purposes means no oxygen is needed from the ultra-high purity (99.5+% O2) oxygen reserve tanks. By not adding oxygen from compressed tanks to the cabin environment, oxygen levels can be kept below the vehicle fire limit thereby extending the duration of care provided to an oxygenated patient without environmental control system intervention to keep the cabin oxygen levels below the fire limits. The oxygen concentrator will be a Food and Drug Administration (FDA) clearable device. A demonstration unit for the International Space Station (ISS) is planned to verify the technology and provide oxygen capability. For the ISS, the demonstration unit should not exceed 10 kg (approximately 22 lb), which is the soft stowage mass limit for launch on resupply vehicles for the ISS. The unit's size should allow for transport within the spacecraft to an ill crewmember. The user interface needs to be designed for ease of use by the local care provider and with consideration to the limited amount of training available to the astronaut corps for medical equipment and procedures. Gilkey, Kelly M. and Olson, Sandra L. Glenn Research Center OXYGEN; CONCENTRATORS; PROTOTYPES; ADSORPTION; CABIN ATMOSPHERES; CLOSED ECOLOGICAL SYSTEMS; OXYGENATION; PATIENTS; SPACE FLIGHT; ELECTROCHEMISTRY; INTERNATIONAL SPACE STATION; REQUIREMENTS; TECHNOLOGY UTILIZATION; TEST CHAMBERS; PERFORMANCE TESTS
Download or read book Research Directory of the Rehabilitation Research and Training Centers written by and published by . This book was released on 1972 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements written by and published by . This book was released on 1975-05-30 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Universal Non Pressurized Aircraft Oxygen System written by Robert L. Rankin and published by . This book was released on 1972 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the development of a laboratory working model of a solid chemical oxygen generating system. A design study was conducted to aid in designing a system which would satisfy program specifications and provide operational flexibility and simplicity, minimal maintenance and safe operation. The system which evolved featured: remote and local control of the system, automatic and manual operation modes, six sodium chlorate candles contained in individual rechargable generators and delivered oxygen compatible with MIL-STD-E-83252 (USAF). Each of the sodium chlorate candles were 1.75 in. dia. by 11.75 in. long and contained 6% Fe fuel. The six generators contained in integral filter for contaminant removal. A regenerable dryer using molecular sieves (Linde 13X) was provided for moisture control. For each of the six generators a mass flowmeter was supplied for monitoring the oxygen generation rate. The generated oxygen was stored in a 500 cu. in. accumulator at less than 500 psig. An ignition control system using 28V DC power was developed which permitted the generator activation sequence to be programmed for automatic operation. An override was included for manual operation. Also, an automatic safety override was designed into the ignition control system which removed generator activation power and indicated when the system pressure exceeded 400 psig.
