3 edition of Current technology for thermal protection systems found in the catalog.
NASA Langley Research Center.Distributed to depository libraries in microfiche.Shipping list no.: 93-0323-M.Includes bibliographical references.Microfiche. [Washington, D.C. : National Aeronautics and Space Administration], 1992. 4 microfiches.WU 506-43-31-04.s 1992 dcu n b.
|Statement||National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program|
|Publishers||National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program|
|The Physical Object|
|Pagination||xvi, 88 p. :|
|Number of Pages||81|
|2||NASA conference publication -- 3157.|
nodata File Size: 9MB.
While the current NFPA Standard for PASS devices 1982 requires only a motion detector, some manufacturers are beginning to incorporate thermal exposure sensors into each PASS device. 3 Provide controllable instability or fluctuation at all levels of tilt. Since the power ID drawn by the motor from the supply depends on the loading position of the motor, for low supply voltage, the motor will draw a high current from the mains to maintain the required torque.
Therefore, it can be concluded that the operating current of the selected thermal overload relay should be located below the operating time vs. Personal Alert Safety System PASS devices are designed to signal for aid via an audible alarm. PHASE II: This phase will consist of further developing the low- or no-power advanced transportation container or container system for blood and blood products, demonstrating its utility, and validating the prototype s through relevant testing.
Together, Phase I deliverables include: 1 Design and use specifications that the proposed device should meet. Inverters are used to control the speed of induction motors. Whether the waterproofing problem can be resolved with existing technology and ongoing research is still uncertain.
Accordingly, the prime contractors select the TPS candidates appropriate for their vehicle, assume responsibility for the producibility of the TPS, and define the attachment methods to be used. Temperature sensitive; will take longer to trip in colder environments• Robustness of the TPS will be established by a robustness test matrix, which was developed in an ARC-conducted workshop with the direct participation of the industry partners.
pdf; accessed 27 JUL 20. Cryogenic foam insulation has been used on expendable vehicles including the shuttle's external tankbut reuse has been limited to one or more tanking-detanking cycles. [4-7] Current technology for thermal protection systems facilitate this rapid deployment of blood, inventories must be bolstered through transportation of blood and blood products from donation centers to forward locations.
PHASE I: Determine, insofar as possible, the scientific, technical, and commercial feasibility of the concept. Being non-static machines motors are subjected to electrical and mechanical stress.
Approval is at the discretion of the DLA SBIP Program Manager. The following exemplary applications describe how PTC thermistors can be used for overcurrent protection.
REPORT NIST SP 1123, June 2011 SELF-CONTAINED BREATHING APPARATUS Fire fighters are exposed to highly variable environments including elevated temperatures and convective and radiant thermal flux, which can put a significant burden on personal protective equipment. The information below will help you identify the right temperature sensor for your design while explaining the benefits of temperature measurement for the specific applications. When entering high pressure areas, cavitation bubbles that implode on a metal surface cause cyclic stress through repeated implosion, resulting in surface fatigue of the metal.
Such a condition is undesirable because harmful mechanical stresses are exerted on the shaft, and the severe power swings have a disturbing effect on the power system voltages.
US, of all medical imaging modalities, has favorable use advantages which include: its reliance on non-ionizing radiation; its real-time cine imaging capability; and, its ability to be built into portable systems having simple power needs e.
Development of a standardized low- or no-power advanced transportation container or container system for blood and blood products that will maintain the cold chain with confirmation and minimize breakage and waste is of critical importance.