SEARCH · Engineering Papers
Results for “NaNO”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Polymer and Nano-Material Research in the Polymers Branch at NASA Glenn Research Center
No abstract available
Applications of Nano-Satellites and Cube-Satellites in Microwave and RF Domain
This paper presents an overview of microwave technologies for Small Satellites including NanoSats and CubeSats. In addition, examples of space communication technology demonstration projects using CubeSats are presented. Furthermore, examples of miniature instruments for Earth science measurements are discussed.
Applications of Nano-satellites and Cube-satellites in Microwave and RF Domain
This paper presents an overview of microwave technologies for Small Satellites including NanoSats and CubeSats. In addition, examples of space communication technology demonstration projects using CubeSats are presented. Furthermore, examples of miniature instruments for Earth science measurements are discussed.
The TechEdSat Series - A Platform for Rapidly Advancing Nano-Satellite Technologies and Capabilities
No abstract available
Micro- and Nano-Scale Electrically Driven Two-Phase Thermal Management
This presentation discusses ground based proof of concept hardware under development at NASA GSFC to address high heat flux thermal management in silicon substrates. The goal is to develop proof of concept hardware for space flight validation. The space flight hardware will provide gravity insensitive thermal management for electronics applications such as transmit receive modules that are severely limited by thermal concerns.
Nano Icy Moons Propellant Harvester
As one of just a few bodies identified in the solar system with a liquid ocean, Europa has become a top priority in the search for life outside of Earth. However, cost estimates for exploring Europa have been prohibitively expensive, with estimates of a NASA Flagship class orbiter and lander approaching $5 billion. ExoTerra's NIMPH offers an affordable solution that can not only land, but return a sample from the surface to Earth. NIMPH combines solar electric propulsion (SEP) technologies being developed for the asteroid redirect mission and microsatellite electronics to reduce the cost of a full sample return mission below $500 million. A key to achieving this order-of-magnitude cost reduction is minimizing the initial mass of the system. The cost of any mission is directly proportional to its mass. By keeping the mission within the constraints of an Atlas V 551 launch vehicle versus an SLS, we can significantly reduce launch costs. To achieve this we reduce the landed mass of the sample return lander, which is the largest multiplier of mission mass, and shrink propellant mass through high efficiency SEP and gravity assists. The NIMPH projects first step in reducing landed mass focuses on development of a micro-In Situ Resource Utilization (micro-ISRU) system. ISRU allows us to minimize landed mass of a sample return mission by converting local ice into propellants. The project reduces the ISRU system to a CubeSat-scale package that weighs just 1.74 kg and consumes just 242 W of power. We estimate that use of this ISRU vs. an identical micro-lander without ISRU reduces fuel mass by 45 kg. As the dry mass of the lander grows for larger missions, these savings scale exponentially. Taking full advantage of the micro-ISRU system requires the development of a micro-liquid oxygen-liquid hydrogen engine. The micro-liquid oxygen-liquid hydrogen engine is tailored for the mission by scaling it to match the scale of the micro-lander and the low gravity of the target moon. We also tailor the engine for a near stoichiometric mixture ratio of 7.5. Most high-performance liquid oxygen-liquid hydrogen engines inject extra liquid hydrogen to lower the average molecular weight of the exhaust, which improves specific impulse. However, this extra liquid hydroden requires additional power and processing time on the surface for the ISRU to create. This increases mission cost, and on missions within high radiation environments such as Europa, increases radiation shielding mass. The resulting engine weighs just 1.36 kg and produces 71.5 newton of thrust at 364 s specific impulse. Finally, the mission reduces landed mass by taking advantage of the SEP modules solar power to beam energy to the surface using a collimated laser. This allows us to replace an 45 kg MMRTG with a 2.5 kg resonant array. By using the combination of ISRU, a liquid oxygen-liquid hydrogen engine, and beamed power, we reduce the initial mass of the lander to just 51.5 kg. When combined with an SEP module to ferry the lander to Europa the initial mission mass is just 6397 kg - low enough to be placed on an Earth escape trajectory using an Atlas V 551 launch vehicle. By comparison, we estimate a duplicate lander using an MMRTG and semi-storable propellants such as liquid oxygen-methane would result in an order of magnitude increase in initial lander mass to 445 kg. Attempting to perform the trajectory with a 450 s liquid oxygen-liquid hydrogen engine would increase initial mass to approximately 135,000 kg. Using an Atlas V 1 U.S. Dollar per kg rate to Earth escape value of $27.7k per kg, just the launch savings are over $3.5 billion.
Fabrication Method, Characteristics and Applications of Cellulose Nano Fiber (CNF) Film
Petroleum-based polymer materials have been extensively developed owing to their low cost, easy formability, low weight, and corrosion resistance. Beyond the performance and economic aspects, life cycle assessment is also important requiring a plan for reuse, recycling or disposal. Disposal requires a short composting time, but most petroleum-based materials take many years to compost, some not breaking down even after centuries. One approach to more environmentally compatible materials involves harnessing natural materials like wood and bone. These natural materials (whether naturally or artificially produced) are inherently renewable, not requiring the millions of years of fossilization necessary to produce petroleum-based materials.
A NASA First in Nano-Technology: Nanoscale Vacuum Tube for Radiation Immune Electronics
Vacuum provides the fastest electron speed, better than any semiconductor. Nevertheless vacuum tubes were bulky, fragile and consumed much power. Now nanotechnology has enabled fabrication of vacuum tubes at nanoscale in silicon chips. The speed, immunity to radiation and high temperature operation are expected to revolutionize space electronics.
A New Small Nano-Kelvin Resolution Thermometer for Low Temperature Experiments
A small, high resolution paramagnetic susceptibility thermometer was developed using a GdCl***sub3*** paramagnetic salt.
SSTP 2016 Partnership Development of a Nano-Enabled Space Power System
Explore the source record for details and available documents.
Demonstration of a Nano-Enabled Space Power System: Nanomaterial Integration to Provide an Advantage in Power Systems
Explore the source record for details and available documents.
Condensed Matter Nuclear Reactions in Nano-Materials
Explore the source record for details and available documents.
X-Ray Micro- and Nano-Tomography Analysis of Bennu Samples: A Preliminary Report
X-ray tomography (XCT) is an effective technique for obtaining the 3D structures of returned samples. XCT using synchrotron radiation provides high-resolution CT images with quantitative information. The XCT systems at SPring-8, an SR facility in Japan, have been used to analyze samples returned from the asteroids Itokawa and Ryugu. In this study, we plan to apply SR-XCT to samples returned from the asteroid Bennu.
Thermal Design Considerations for Integration of the DWTS Instrument in a Nano-Satellite
Explore the source record for details and available documents.