Research papers
5,883 papers · NASA NTRS, NTSB, FAA CAMI
NASA NTRS · 1,269 NTSB Safety Studies · 12 NTSB Aircraft Accident Reports · 17 Embry-Riddle Scholarly Commons · 1,993
7 matches · NASA NTRSPropellants And Fuels
- NASA NTRS 2022 JSC Conference Paper
International Space Station Bipropellant Plume Contamination Model update for short thruster pulse widths
The International Space Station (ISS) Bipropellant Plume Contamination Model has been a vital tool for characterizing the thruster plume-induced contamination environment at the ISS but was not intended to be used for ve…
- NASA NTRS 2022 LaRC Poster
Particle and Trace Gas Emissions Indices Measured During the 2021 Boeing ecoDemonstrator Emissions Ground Test
We present particle and trace gas emissions indices sampled on the ground at 30 meters behind the CFM LEAP-1B engines of the Boeing ecoDemonstrator 737-9 aircraft.
- NASA NTRS 2022 GSFC Conference Paper
Propulsive Trajectory Optimization to Minimize Surface Contamination
Descent retroburns using hydrazine thrusters will generate contaminants in their exhaust that can alter underlying samples, such as water-rich surfaces coinciding with possible life signatures or other science measuremen…
- NASA NTRS 2022 JSC Conference Paper
International Space Station Bipropellant Plume Contamination Model Update for Short Thruster Pulse Widths
The International Space Station (ISS) Bipropellant Plume Contamination Model has been a vital tool for characterizing the thruster plume-induced contamination environment at the ISS but was not intended to be used for ve…
- NASA NTRS 2020 JSC Accepted Manuscript (Version with final changes)
International Space Station (ISS) Thruster Plume Contamination and Erosion Control for Visiting Spacecraft
The ISS is the largest and most complex platform for space science utilization in low Earth orbit. Multiple sites for external payloads, with exposure to the associated natural and induced environments, are available to …
- NASA NTRS 2019 GRC Conference Paper
Particulate Emissions Hazards Associated with Fueling Heat Engines
All hydrocarbon- (HC-) fueled heat engine exhaust (tailpipe) emissions (<10 to 140 nm) contribute as health hazards, including emissions from transportation vehicles (e.g., aircraft) and other HC-fueled power systems.
- NASA NTRS 2005 GRC Abstract
MEA Failure Mechanisms in PEM Fuel Cells Operated on Hydrogen and Oxygen
Polymer electrolyte membrane (PEM) fuel cells are candidates to replace alkaline fuel cells for space power programs. Broad power ranges, high peak to nominal power ratio, and low maintenance costs are the major advantag…