A study to develop a low temperature battery suitable for space probe applications final report
Low temperature batteries for deep space probes and extending battery usefulness by heating
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Low temperature batteries for deep space probes and extending battery usefulness by heating
Filler and matrix composite materials for use in silver-zinc battery separators
Inorganic fillers and pressure effects on films for separators for heat sterilizable silver zinc battery
The purpose of this experiment campaign is to find materials or surface coatings that repel ("dewet") cryogenic propellants. This presentation summarizes progress up to this point.
Materials research - diffusion bonding methods, stress corrosion tests, nondestructive testing, material designs for electronic equipment, and nonmetallic material development.
The following topics are discussed: the Electrical Power Subsystem; the Eclipse Energy Requirements; the NiH2 CPV battery; and the battery pressure transducer. The discussion is presented in viewgraph format.
This presentation discusses use of Core Flight Systems in NASA Langley Research Center's drone flight test environment for autonomy algorithms research.
Coulometer controlled battery charge regulator controls nickel/cadmium type primary cells used in space applications. The use of the coulometer as an ampere hour measuring device permits all available current to go to the battery until full charge state is reached, at which time the charge rate is automatically reduced.
Viewgraphs on the battery study for the Mars Environmental Survey (MESUR) Pathfinder are presented. Topics covered include: MESUR pathfinder introduction; power subsystem concept; battery technology selection; mission battery performance; cell/battery baseline design; charge methodology; and proposed testing.
The Jet Propulsion Laboratory will test a lithium battery (Li- TiS2) in orbit and examine the battery after it is returned to Earth. The results will be used to suggest design changes for a battery that may eventually be 3-4 times lighter than the equivalent NiCd battery.
This presentation gives an overview of thermal technology development efforts at the Johnson Space Center (JSC), NASA’s center for human spaceflight.
Using global interpolation functions (GIF's) boundary element solutions are obtained for two-dimensional laminar flows. Two schemes are proposed for handling the convective terms. The first treats convection as a forcing function, and converts the flow equations to pseudo-Poisson equations. In the second scheme, some convective effect is incorporated into the fundamental solution used in constructing the pertinent integral equations. The lid-driven cavity flow is selected as the benchmark problem.