Ad
related to: sox nox analyzer
Search results
Results from the WOW.Com Content Network
The term NO x represents several forms of nitrogen oxides such as NO (nitric oxide), NO 2 (nitrogen dioxide) and N 2 O (nitrous oxide, also known as laughing gas).In a gasoline engine, NO is the most common form of NO x at around 93%, while NO 2 is around 5% and the rest is N 2 O.
The gas diffuses into the sensor, through the back of the porous membrane to the working electrode, where it is oxidized or reduced. This electrochemical reaction results in an electric current that passes through the external circuit.
In atmospheric chemistry, NO x is shorthand for nitric oxide (NO) and nitrogen dioxide (NO 2), the nitrogen oxides that are most relevant for air pollution. [1] [2] These gases contribute to the formation of smog and acid rain, as well as affecting tropospheric ozone.
A nondispersive infrared sensor (or NDIR sensor) is a simple spectroscopic sensor often used as a gas detector.It is non-dispersive in the fact that no dispersive element (e.g a prism or diffraction grating as is often present in other spectrometers) is used to separate out (like a monochromator) the broadband light into a narrow spectrum suitable for gas sensing.
Once conditioned, the sample enters a sampling manifold and is measured by various gas analyzers, typically NO x and O 2 (and sometimes CO) for combustion turbines and engines running natural gas or diesel. NO x analyzers typically work using chemiluminescence. O 2 analyzers a magnetic field which attracts O 2 to measure the
It is the first improved analyzer that is able to detect more than one component of a sample gas at one time. Earlier analyzers were held back by the fact that a particular gas also has lower absorption bands in the infrared. The invention of 1975 has as many detectors as the number of gases to be measured.
ORSAT analyzer. An Orsat gas analyser or Orsat apparatus is a piece of laboratory equipment used to analyse a gas sample (typically fossil fuel flue gas) for its oxygen, carbon monoxide and carbon dioxide content. Although largely replaced by instrumental techniques, the Orsat remains a reliable method of measurement and is relatively simple to ...
The emissions specifically include SOx, NOx, ODSs and VOCs [2] and the regulations came into effect in May 2005. [ 3 ] [ 4 ] Annex VI contains provisions for two sets of emission and fuel quality requirements regarding SOx and PM, or NOx, a global requirement and more stringent controls in special emission control areas (ECA). [ 5 ]
Ad
related to: sox nox analyzer