In order to meet the stringent environmental standards
Argentina: CNG is considered the best option for the public transport systems
According to the Resolution 1434/2011 from the Ministry of Environment and Sustainable Development of the Nation -amending decision 35/09 related to limits on emissions, noise and harmful radiation from automotives- Euro III and Euro IV standards for heavy-duty vehicles engines will be effective until December 31, 2012 and December 31, 2014, respectively. Regarding these imminent changes for HD transport in Argentina, the engineer Juan Sacco, director of Special and International Projects at bus manufacturer TATSA, expressed his opinion.
"In order to control pollution, countries increasingly apply stricter standards on emissions with certain maximum rates of carbon dioxide, nitrogen and so on. Each engine must be upgraded to meet the new standards, for example by applying urea to diesel, as an additional treatment of vehicle exhaust. However, the simplest option is the use of CNG to power this mean of transportation," he told Prensa Vehicular magazine.
As a consequence, Sacco believed that there should be a regulation that allows automobile manufacturers to produce vehicles featuring natural gas engine. "In transportation, the structure is made for diesel, where the conversions are much more expensive than if we take a gasoline engine, whose cycle is Otto, just like CNG system. If the objective is to switch public transport fleet, we should begin the process with OEM NGVs."
To achieve this transition, the expert said it is necessary to have a national decree or a resolution so that natural gas can be introduced as a fuel while enhancing the supply network for these vehicles. Moreover, Sacco stressed that it is important to begin with the conversion of public transport in major cities and recalled that Ecobuses program bill was reintroduced in the Congress in March.
“The state should intervene. The main resistance the carriers offer is focused on subsidies. But CNG-powered transport would be less costly for governments. It is the only option for the market to change their habits, as when buses with low floor were presented, 15 years ago; this was possible through a resolution of the Secretary of Transportation and its adoption was gradual," said Sacco. "The implementation should start in the city of Buenos Aires, where there is more pollution," he added.
Read the full article in the August issue of Prensa Vehicular magazine.