Vehicle Emissions: What Will Change with Use of Biofuel?

Guarieiro, Lílian Lefol Nani; Guarieiro, Aline Lefol Nani

doi:10.5772/52513

Cited by 27 publications

(24 citation statements)

References 84 publications

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“…Almost 3,000 different compounds resulting from human activity, most of which are organic, have been identified in the atmosphere. 16 Anthropic sources may be stationary or mobile (Figure 2). Stationary sources comprise mostly industries, which occupy a relatively limited area and allow a direct evaluation of the source.…”

Section: Atmospheric Pollutionmentioning

confidence: 99%

Use and Application of Photochemical Modeling to Predict the Formation of Tropospheric Ozone

Guarieiro

2017

Rev. Virtual Quim.

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High concentrations of tropospheric ozone (O 3 ) are considered to be toxic to human beings and may lead to significant oxidative processes in various types of materials. Nitrogen oxides and volatile organic compound emissions are the main precursors of tropospheric O 3 formation. Experimental studies have been performed to evaluate the potential for the formation of O 3 . However, these studies are limited by their inability to simulate natural environmental conditions that contribute significantly to the formation of O 3 . Computational mathematical models have become an important tool in predicting the formation of O 3 because it is possible to simulate specific scenarios of the emissions of environmental pollutants with defined meteorological conditions. A critical analysis was presented of the photochemical models that have been applied to predict the formation of tropospheric O 3 and their importance in the evaluation of this pollutant.Keywords: Air quality models; tropospheric O 3 formation; mathematical models. ResumoO ozônio (O 3 ) troposférico em alta concentração é um composto tóxico para os seres vivos e pode levar vários tipos de materiais à processos oxidativos significativos. A formação do O 3 troposférico tem como principais precursores as emissões de óxidos de nitrogênio e compostos orgânicos voláteis. Estudos experimentais são desenvolvidos para avaliar o potencial de formação do O 3 . Contudo, tais estudos se tornam restritivos devido à impossibilidade de simulação de condições ambientais naturais que contribuem significativamente com a formação do O 3 . Neste sentido, modelos matemáticos computacionais se tornam uma ferramenta importante na previsão da formação de O 3 , uma vez que é possível simular cenários específicos da emissão de poluentes ambientais com condições meteorológicas definidas. Neste contexto, foi realizada uma analise crítica dos modelos fotoquímicos que vem sendo utilizado na avaliação da formação de O 3 troposférico e sua importância n a avaliação da formação deste poluente.Palavras-chave: Modelos de qualidade do ar; formação de ozônio troposférico; modelos matemáticos.

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Section: Atmospheric Pollutionmentioning

confidence: 99%

Use and Application of Photochemical Modeling to Predict the Formation of Tropospheric Ozone

Guarieiro

2017

Rev. Virtual Quim.

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“…The particle size is an important propriety and is related to its inhalable potential causing the particle to get into the human respiratory system and then causing health problems [3]. Furthermore, particle size is one of the most important parameters in determining the atmospheric lifetime of particles, which is a key consideration in assessing health effect information because of its relationship to exposure.…”

Section: Origin and Characterization Of Particlesmentioning

confidence: 99%

“…The use of these biofuels can bring great changes in the emission of particulate matter profile, which will be discussed below. PM emissions have become a major concern due to their environmental impact [3]. In recent years, the law which governs the issuance of pollutants has forced manufacturers and automakers to develop engines and cleaner cars.…”

Section: Impact Of the Biofuel Burning On Particle Emissions From Thementioning

confidence: 99%

“…In this scenario, fuels from renewable sources received considerable prominence and emerged as alternatives to fossil fuels. Several tests have been conducted with biodiesel and ethanol to ascertain the impacts on engine performance, fuel consumption, and exhaust emission, mainly in relation to diesel [3,37].…”

Section: Impact Of the Biofuel Burning On Particle Emissions From Thementioning

confidence: 99%

“…The differences on performance, combustion, and emission of biodiesel are caused by the difference existing between this and the diesel from fossil oil and chemical thermophysical properties such as density, cetane number, and oxygen content, being higher in biodiesel than in diesel [3].…”

Section: Impact Of the Biofuel Burning On Particle Emissions From Thementioning

confidence: 99%

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