What is the purpose of adding urea to diesel vehicles?
2 Answers
The purpose of adding urea to diesel vehicles is to treat exhaust gases, reduce pollutants in the exhaust, and optimize engine performance and fuel consumption. Vehicle urea is a colorless, transparent liquid stored in the urea tank. When sensors detect nitrogen oxides in the exhaust pipe, they automatically spray atomized vehicle urea, which mixes with nitrogen oxides. In the SCR reaction tank, a redox reaction occurs, producing and releasing non-polluting nitrogen and water. The effects of not adding urea to diesel vehicles include: 1. Exceeding emission standards, causing environmental pollution; 2. Oxidation of chemicals in the vehicle system, leading to clogging of the urea nozzle and rendering the entire system unusable; 3. Decreased vehicle power.
I drive a logistics truck and cover hundreds of kilometers every day, so the urea tank is as essential as meals. This stuff is added to the vehicle to treat the exhaust of diesel engines. There's a system called SCR in the exhaust pipe—urea is sprayed in and reacts chemically with nitrogen oxides in the exhaust, converting them into harmless nitrogen gas and water vapor. No water, no fuel, just this blue liquid keeps our diesel trucks compliant with environmental standards. If the turtle light on the dashboard comes on, it's likely out of urea—time to refill immediately, or the truck will be limited to just 20 km/h. For long hauls, I always keep two extra cans in the back; the 10-kg packs at gas stations are very convenient to buy.
