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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.

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At least 271 records · Page 15

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DOE OSTI2022

Toughened polyester composites containing polyester matrix and droplets of high boiling liquid therein

A toughened polyester composite comprising: (i) a polyester matrix and (ii) droplets of a high boiling point liquid having a boiling point of at least 140° C. dispersed in said polyester matrix, wherein the high boiling point liquid is present in an amount of 0.1-10 wt % by weight of the toughened polyester composite, and wherein the composite may further include: (iii) a modifier selected from polycarboxylic, polyol, and polyamine compounds, wherein the modifier is present in an amount of 0.1-10 wt % by weight of the toughened polyester composite. Methods for producing the polyester composite are also described.

Ozcan, Soydan↗

DOE OSTI2020

Droplet burning characteristics of mixtures of iso-butanol with an 87 octane gasoline, a certification gasoline, and a gasoline surrogate

This is a poster introducing our research on droplet burning characteristics of mixtures of iso-butanol with an 87 octane gasoline, a certification gasoline, and a gasoline surrogate.

Guo, Songtao↗

DOE OSTI2020

Quantitative Soot Volume Fraction Measurements from Droplet Combustion Experiments of Sooty Fuels

This presentation introduces our research on quantitative soot volume fraction measurements from droplet combustion experiments of sooty fuels.

Xu, Yuhao↗

DOE OSTI2021

On using droplet burning data to validate combustion kinetic mechanisms of transportation fuels: challenges and opportunities

This presentation introduces our research on using droplet burning data to validate combustion kinetic mechanisms of transportation fuels: challenges and opportunities.

Guo, Songtao↗

DOE OSTI2022

A High Pressure Apparatus for Low Gravity Droplet Burning Experiments

This presentation introduces our research on design of a high pressure isolated droplet combustion apparatus.

DiReda, Nicholas↗

DOE OSTI2023

Isolation and spectroscopy of C 2 H + ions in helium droplets

Ethynylium (C 2 H + ) may be an important intermediate in astrochemistrybut remains poorly studied by laboratory techniques due to its high reactivity. Immersion of single acetylene molecules in helium nanodroplets followed by electron impact ionization effectively generates and isolates C 2 H + cations in an inert cryogenic environment, enabling infrared spectroscopic measurements. Here, we find that in the C-H stretching range, the C 2 H + spectrum appears as a triplet with splitting of 33.6 cm —1 and 37.5 cm —1 . The splitting is temporarily assigned to the product of interactions between the C-H stretching mode and overtones of the bending mode.

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗

DOE OSTI2024