For decades, combustion researchers and engine companies have been seeking to understand how these gases are produced during combustion so that they can find ways to reduce them. Now researchers have ...

Why is NOx such a major concern in the U.S. and elsewhere? NOx consists of roughly 90% to 95% NO and perhaps 5% to 10% NO 2. Those associated with fossil fuel fired boilers and other furnaces are from ...

Exhaust NOx and particulate measurements were obtained at equivalent operating conditions in a direct-injection compression ignition engine for diesel and diethyl ether fuel. Particulate levels for ...

Figure 1: NO-dependent activation of H-NOX protein. The 'sidedness' of the NO complex (distal vs. proximal) could have profound biological consequences on the signal half-life. Return of the distal NO ...

Utility boilers have long been a cornerstone of power generation; however, increasing environmental pressures drive continuous development in combustion technology and emission control. Recent ...

Air pollution in China has exhibited noticeable changes over the past 30 years, shifting from point-source pollution (around factories and industrial plants) in the 1980s to urban pollution in the ...

Palo Alto, Calif. – April 2, 2002 — A new NOx reduction process developed by the Electric Power Research Institute (EPRI) provides coal-fired generating units with a cost-effective means of complying ...

Dilute operation of a SI engine offers attractive performance incentives. Lowered combustion temperatures and changes in the mixture composition inhibit NOx formation and increase the effective value ...

Nitrogen oxides (NOx) are some of the most significant pollutants in our atmosphere — they contribute to the formation of smog, acid rain and ground-level ozone. Because of this, combustion ...