• SPOORTHI HB
• Dr. Hemalatha J N

Controlling exhaust emissions from internal combustion engines has emerged as one of the most pressing issues. Breathing difficulties, headaches, persistently impaired lung function, eye discomfort, lack of appetite, and corroded teeth are all possible side effects. It can have an indirect impact on humans by harming the ecosystems on which they rely in the sea and on land. The Indian government amended European regulations considering environmental concerns and health risks. To fulfil the impending pollution standards, existing engine technology must be modified, and a better system developed. Exhaust temperature management is the most effective approach to controlling emissions. The temperature in the exhaust system has a significant impact on emissions since exhaust gas treatment equipment like catalysts, oxygen sensors, and storage catalysts operate only within a narrow temperature range. Thus, by efficiently managing the exhaust system temperature, we can reduce emissions to a given level. The main criterion for accomplishing all of these requirements is engine torque. Catalytic converters reduce the emissions of carbon monoxide, hydrocarbons, nitrogen oxides, and particulate matter from internal combustion engines, allowing them to satisfy increasingly rigorous emission laws. Catalytic converters, on the other hand, have light-off troubles during cold start and warm-up. This work evaluates the literature on catalyst thermal management, with the goal of drastically reducing light-off time and emission concentrations using optimal heating methods. Methods based on engine parameter control, in particular, are simple to apply since they do not necessitate the use of additional heating equipment. They do well in terms of reducing catalyst light-off time.

- Light off temperature, Catalytic converter, Thermal management, Internal combustion engines, Spark ignited engines, Catalyst, Exhaust emissions.

"Methods of Thermal Management of Catalytic Converters in Gasoline-Based Engine Exhaust Systems", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 7, page no.a773-a784, July-2022, Available :http://www.jetir.org/papers/JETIR2207095.pdf

"Methods of Thermal Management of Catalytic Converters in Gasoline-Based Engine Exhaust Systems", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 7, page no. ppa773-a784, July-2022, Available at : http://www.jetir.org/papers/JETIR2207095.pdf