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Diesel particulate matter (DPM), sometimes also called diesel exhaust particles (DEP), is the particulate component of diesel exhaust, which includes diesel soot and aerosols such as ash particulates, metallic abrasion particles, sulfates, and silicates.
Diesel exhaust is the exhaust gas produced by a diesel engine, plus any contained particulates. Its composition may vary with the fuel type, rate of consumption or speed of engine operation (e.g., idling or at speed or under load), and whether the engine is in an on-road vehicle, farm vehicle, locomotive, marine vessel, or stationary generator ...
"The more you idle, the more exhaust is released," she says. ... Experts say there are a few things to keep in mind when it comes to idling. If it's not overly hot or cold, the DOE says it's best ...
This is because it reduces the intake charge density. EGR is also omitted at idle (low-speed, zero load) because it would cause unstable combustion, resulting in rough idle. Since the EGR system recirculates a portion of exhaust gases, over time the valve can become clogged with carbon deposits, which will prevent it from operating properly.
A three-way catalytic converter on a gasoline-powered 1996 Dodge Ram Simulation of flow inside a catalytic converter. A catalytic converter is an exhaust emission control device which converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction.
Myth #1: There’s one virus behind the common cold. There’s a reason you might catch a cold multiple times a season — even after it feels like you just got over one, Russo says: They can be ...
On those mornings when you’re the first one out the door after a heavy snow and trudging through the snow to enjoy the sights or to get to your car, all you might hear (especially when the snow ...
Airflow is often monitored for these daily inspections by taping a piece of tissue paper to the open face of the hood such that it will be drawn inward; if the tissue is not pulled inward, the hood exhaust is not functioning. [95] Periodic fume hood function inspections require the measurement of capture or face velocity [a] with an anemometer.