Read | NIRF ranking 2017: Top 25 engineering colleges in India, see latest ranking. The IITs have occupied the top 10 best engineering colleges slot with IIT Madras placed at number one with a weighted score of 89.42, followed by IIT Bombay, IIT Kharagpur, IIT Delhi and IIT Kanpur with weighted score of 87.67, 83.91, 82.03 and 81.07, respectively. Check out the top 25 engineering colleges in India.
Volvoâs Selective Catalytic Reduction (SCR) system is a superior solution to the EPAâs emissions standards, not to mention a fuel- and cost-saving innovation for your fleet. Hereâs how it works: high-NOx/particulate exhaust flows from the engine to Volvoâs diesel particulate filter (DPF), where much of the exhaustâs particulate is removed. Next, before the exhaust reaches the catalytic converter, diesel exhaust fluid (DEF) is mixed in.
Diesel Exhaust Fluid (DEF) is a non-hazardous solution, which is 32.5% urea and 67.5% de-ionized water. DEF is sprayed into the exhaust stream of diesel vehicles to break down dangerous NOx emissions into harmless nitrogen and water.This system is called Selective Catalytic Reduction (SCR) and can be found on 2010 and later model year trucks and many diesel pickups and SUVs.DEF is not a fuel additive and never comes into contact with diesel. It is stored in a separate tank, typically with a blue filler cap.EF is sprayed into the exhaust stream of diesel vehicles to break down dangerous NOx emissions into harmless nitrogen and water. This system is called Selective Catalytic Reduction (SCR) and can be found on 2010 and later model year trucks and many diesel pickups and SUVs.