The scientific research “Study of the variation in atmospheric emissions resulting from the addition of biodiesel in mixtures with S10 mineral diesel: evaluation of internal combustion engines in the driving cycle” received the recognition of experts in the fields of thermal sciences and engineering. This month, the work was submitted for peer review at national and international levels, during the 20th Brazilian Congress of Thermal Sciences and Engineering ENCIT, held in November in Foz do Iguaçu (PR).
In practice, the study conducted by automotive engineering professors Fabio Cordero de Lisboa, João Carlos Wohlgemuth and Nicolas Lima de Oliveira was evaluated and accepted by the meeting participants. The technical analysis confirms the methodology of UnB (University of Brasilia) and paves the way for other researchers to reproduce the tests, to validate and disseminate the problem with ester-based biodiesel blends in diesel to the community.
The first academic acceptance of UnB’s findings regarding the current impasse in biodiesel content in diesel took place in October, during the Brazilian Energy Planning Conference. The event was promoted by the Brazilian Energy Planning Association, which has been promoting strategic studies in the region for 35 years.
The scientific verification of the study invalidates the claims of unreliability raised against the research conducted by UnB and CNT. The working methodology of the biodiesel production sector was questioned during a public hearing held in the Federal Senate, in April this year.
About the UnB study
The study conducted by UnB on the effects of increasing the blend of biodiesel to diesel A S10 revealed that by increasing the proportion of biodiesel from 7% to 20%, fuel consumption increased by 9.5% in the truck model, and 15% in the van model. last. In practice, the technical results show that 15% more fuel is consumed to travel on the same route with mixture-powered vehicles.
In absolute numbers, road freight transport will waste 3 billion liters of diesel per year, generating a financial impact of more than R$ 20 billion per year. Moreover, the change will result in the emission of 8.78 million tons of CO2 equivalent, taking into account only the trucks rolling in phases P5 and P7 of Proconve (Programme to Control Air Pollution with Motorized Vehicles), which represent the most prominent technologies of the national fleet. CNT Agency
