What is the effect of recirculation on NOx emissions?
The effect of recirculation, which decreases the NOx emissions, consists in a reduction of the content of O2 in the area of chemical reactions producing NOx, as well as lowering both average values and local maxima of temperature in the combustion zone.
When do you get high NOx in your car?
Remember high NOx nitric oxide is created when an engine’s combustion chamber temperatures reach over 2500F. You will want to make sure your vehicle’s cooling system is working properly, and your vehicle’s temperature gauge is always indicating normal.
What can be done about high NOx in smog?
The solution to this problem is called De-Carbonizing. It usually costs around two labor hours at a smog check repair station. It will remove a good amount of carbon out of an engine. This will increase combustion space, lower compression and lower NOx. 5. Engine Overheating – Inadequate engine cooling can will high NOx.
What makes an engine have a low NOx level?
Increasing the residuals mass fraction is an effective and practical method of reducing the maximum temperature and thus the NO emission level. Due to the peculiar gas exchange process in two-stroke-cycle engines the recycled exhaust gas is an inherent property, and the typical low NO emission level of a two-stroke-cycle engine is anticipated.
How to reduce NOx emissions in gasoline engines?
RE: Reducing NOX emissions in gasoline engines. Combustion chamber deposit buildup also adds to higher NOx output. High doses of some detergents such as Polyether-amine types can sometimes reduce these over the course of 300-600 miles. Some engine designs are much more prone to this than others.
What causes high No ( Nox ) in a car?
Nitrogen Oxide or NO is created when an engine’s combustion chamber temperature reaches over 2500F. Vehicle manufacturers have designed several systems, which when working properly, lower nitric oxide emissions. Below are common failures which may cause your car, truck, van, suv, or motorhome to produce high high nitric oxide. 1.
When does the EGR system cause high NOx?
The EGR system’s job is to re-route a small amount of exhaust gas back into the intake manifold to help reduce combustion chamber temperatures. As mentioned above NOx is created when combustion chamber temperatures reach above 2500F.
What makes a Honda CRX Si so good?
They were cheap, light, precise, and about as mechanically complex as a screwdriver. To say nothing of the little H badge on the front, which meant they were as reliable as the sun. These virtues also came at a small sticker price, further adding to their desirability.