Search Results

The nitrogen oxide (NOx) emitted by the internal engines is an undesirable pollutant and responsible for the photochemical smog when reacts with ultraviolet light from the sun. This smog can cause eyes and respiratory system irritation as also damage plants. The torch ignition system has been proving to be a viable alternative for reducing NOx emissions, and it is one of the main attractions of the system. NOx formation is closely related to the system’s work temperature. Thus, determining the temperature in the pre-chamber is of fundamental importance, whereas the torch ignition system operating at a temperature above the specified, could lead to an increase in NOx emissions, in the probability of detonation and in the probability of pre-ignition, the possibility of limiting performance, an increase in mechanical efforts and deformation/ breakage.

In 2020, 3.6 million of heavy-duty vehicles operate in Brazil transporting 1,548 billion TKU goods and 2,372 million passengers every year. 45.1 billion of liters of Diesel are consumed per year emitting 185.3 million tons of CO2 to atmosphere. Transportation is one of largest sectors of society in CO2 emissions, being responsible of 8.6% of GHG. In Brazil, heavy vehicles predominantly are powered by fossil fuels. Huge efforts have been displayed by the scientific community to mitigate GHG emissions. Brazil has signed the term of COP 26 establishing a goal to reduce GHG emissions in 50% until 2030. Heavy duty vehicles are responsible of emitting 49.9% of CO2 of the transportation sector. The emissions standards of Brazilian legislations have decreased the limits of NOx, PM, CO in 75, 94 and 63% since 2000 were PROCONVE P2 have stabilized the first emissions limits for heavy-duty vehicles.