Tag

Soot

All articles tagged with #soot

technology3 hours ago•6 min saved

Water-in-Diesel Emulsions Offer Big Emission Cuts Without Engine Redesign

A review of Water-in-Diesel Emulsion (WiDE) technology finds that blending tiny water droplets into diesel fuel creates micro-explosions during combustion, improving fuel-air mixing and lowering peak temperatures. This can reduce nitrogen oxides by up to about 67% and particulate matter by up to about 68%, with potential boosts in engine efficiency, all without redesigning engines; stability relies on surfactants and optimized formulations, and further work is needed on long-term effects and best mixtures.

via ScienceDaily|

#emissions-reduction #engine-efficiency #nox

science2 months ago•4 min saved

Lemon-Shaped Exoplanet with Unique Atmosphere and Diamond-Rich Atmosphere Discovered

The James Webb Telescope has observed a distant exoplanet, PSR J2322-2650b, with an unusual atmosphere composed of soot and diamonds, challenging current understanding of planetary formation and composition, especially given its proximity to its pulsar host star and its unique chemical makeup.

via Live Science|

#diamonds #exoplanet #james-webb-telescope

environment2 years ago•7 min saved

"Biden Administration Implements Stricter Regulations to Combat Deadly Air Pollution"

The EPA has announced new, stricter limits on soot pollution, reducing the allowable limit for annual PM2.5 levels from 12 to 9 micrograms per cubic meter. This marks the first tightening of the rules since 2012, with the aim of preventing about 4,500 premature deaths a year by 2032 in the U.S. and reducing healthcare costs by about $46 billion. The new standards are expected to have a major impact on communities currently experiencing the worst pollution, particularly those of color, but are still above the World Health Organization's recommended limit. The decision comes after a review under the Biden administration, with public health experts emphasizing the ongoing dangers of fine particle pollution and its deadly effects.

via NPR|

#air-pollution #environment #environmental-regulations