Due to high costs of material, manufacturers of automotive catalytic converter devices are focusing on developing a structure that exposes large surface area of to the exhaust stream
, while reducing the amount of catalyst required.
SCR is an emissions aftertreatment technology that converts nitrogen oxides (NOx) in the diesel engine exhaust stream
into nitrogen and water vapor, two natural components in the air we breathe.
The presence of pollutants in the exhaust stream
, especially of sulfuric acid, even when in very low concentrations, advances the condensation begin enormously to above 100[degrees]C.
But, like wind generation, some of this free kinetic energy must remain in the exhaust stream
. But each cubic meter of water in only a 5kt current is still carrying nearly 3.25MW of power!
Among them are ground-level ozone (O3), which forms when N[O.sub.2] molecules interact with oxygen in the presence of sunlight, and fine sooty particulates measuring 2.5 pm or less ([PM.sub.2.5]) in the exhaust stream
. These pol lutants can travel deep into the lungs and elevate risks for DNA damage, heart attacks, and premature death.
A fire can advance very quickly in an exhaust stream--with a typical duct velocity of 1,500 feet per minute in a 15-foot long duct, it takes only six-tenths of a second for a fire to travel in the exhaust stream
from the fusible links in a duct opening to the exhaust fan inlet.
An exhaust gas test is consistently finished with a test put into the exhaust stream
. Every road going vehicle has particular clean necessities that it is obliged to meet the radiation sampler, which is known as gas analyzers, measures five sorts of gasses.
Diesel exhaust fluid, or DEF, "is a solution of urea and de-ionized water that, when injected into the exhaust stream
(a process known as selective catalytic reduction) eliminates 90 percent of exhaust pollutants by converting them to nitrogen and water," according to the company's website.
After a detailed review with the site engineering team, Babcock Wanson recommended replacing the existing Catalytic Thermal Oxidisers with a more effective Regenerative Thermal Oxidiser capable of treating the complete cooking exhaust stream
irrespective of the process heat load, an important feature in the fast moving food industry.
Diesel exhaust fluid (DEF) is injected into the exhaust stream
of the engine, runs through a catalyst, and turns the NOx in the exhaust into harmless water vapor and nitrogen gas.