Emissions Of Co And Nox
Mostrando 1-12 de 37 artigos, teses e dissertações.
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1. Biodiesel: An Overview II
The crescent number of scientific articles published per year shows that research on biodiesel continues to play an important role to support the growing demand for this biofuel. The second edition of Biodiesel: An Overview presents the worldwide research in the last 15 years. Microalgae biomass is the most studied raw material alternative in this period and
J. Braz. Chem. Soc.. Publicado em: 2021-07
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2. 3D numerical investigation of mixture formation and combustion in a DISI engine at part-load under stratified operation
This work investigates through numerical simulation, the operation of a big bore direct fuel injection spark ignition engine, at part load under stratified operation. It evaluates fuel-air mixture preparation and combustion process with the adoption of detailed chemical kinetics mechanisms for both Isooctane and Ethanol, and applying adaptive mesh refinement
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2020
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3. REGULATED AIR POLLUTANT EMISSIONS FROM HIGHER EMITTERS STATIONARY SOURCES IN BELO HORIZONTE, MINAS GERAIS, BRAZIL
Abstract Belo Horizonte, capital of Minas Gerais state, is a highly urbanized city located in the third largest metropolitan area of Brazil, being one of the most important cities in the country. There are several potential air pollutant emission sources in the studied area, such as industry and the vehicular fleet (1,669,884 vehicles in 2015). These can aff
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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4. Quantification and qualification of exhaust gases in agricultural diesel engine operating with biodiesel mixtures
RESUMO Motores de ciclo diesel são amplamente utilizados em máquinas agrícolas. O biodiesel oferece a possibilidade de substituição parcial ou total do diesel mineral, reduzindo assim a dependência da agricultura desse recurso não renovável e diminuindo as emissões de poluentes. O objetivo deste estudo foi avaliar as emissões de CO, NOx, SO2, CO2 e
Rev. bras. eng. agríc. ambient.. Publicado em: 09/09/2019
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5. Estimated evolution of total pollutant gas emissions associated with vehicle activity in the Metropolitan Region of Porto Alegre until 2030
ABSTRACT In recent years, the majority of economic sectors in Brazil have gone through processes of development and transformation. These processes have led to increases in environmental pollution of all kinds; air pollution being one of the most adverse. The Brazilian transportation sector, which heavily affects the air quality, experienced a significant in
An. Acad. Bras. Ciênc.. Publicado em: 24/07/2017
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6. A simulation study about the impact of biodiesel use on the atmosphere of Rio de Janeiro city
Abstract This study evaluates the impact of biofuels on the air quality of the city of Rio de Janeiro using an air quality model based on the trajectory model OZIPR associated with the SAPRC chemical model. The results show that the increase in biodiesel use reduces ozone levels in the atmosphere by 10.2 %, using Biodiesel with Ethanol and Diesel mixture (BE
Braz. J. Chem. Eng.. Publicado em: 2017-07
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7. PERFORMANCE AND EMISSION OF POLLUTANTS OF AN AGRICULTURAL ENGINE WITH TWO POWER TAKE-OFF SETTINGS
ABSTRACT Farming operations are usually performed implements driven by a power take-off (PTO) from tractors. Some manufacturers offer PTO settings named as economic (540E). Such configuration drives implements at lower tractor’s engine rotation, thus providing lower fuel consumption. An engine performance using standard (540) or 540E settings are different
Eng. Agríc.. Publicado em: 2017-04
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8. ON THE SYNTHESIS OF MOLYBDENUM CARBIDE WITH COBALT ADDITION VIA GAS-SOLID REACTIONS IN A CH4/H2 ATMOSPHERE
Abstract Due to ever more severe environmental regulations regarding SOx, NOx and other pollutants' emissions, there has been an interest in developing new and improved catalysts for hydroprocessing reactions. Mo2C has been reported to display good selectivity and activity for those reactions, especially for HDS. Addition of another metal to the carbide stru
Braz. J. Chem. Eng.. Publicado em: 2016-09
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9. Estudio del impacto en la calidad del aire de las fuentes puntuales en la ciudad de pinar del Río
A study of the impact of stationary sources on air quality on the city of Pinar del Rio, Cuba, using the modeling system MM5-CALMET-CALPUFF was made. The dispersion of SO2, NOx, CO, PM10 and PM25 emitted from 21 sources during 15 days is simulated by the model. This period is representative of the rainy season in Cuba (Summer). The of SO4(2-) and NO3- wet de
Rev. bras. meteorol.. Publicado em: 2013-03
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10. Microemulsões combustíveis a partir do óleo de babaçu para substituir o diesel em motores estacionários. / Microemulsion fuels from babassu oil to replace the diesel in stationary engines.
Os óleos vegetais constituem uma alternativa renovável para substituir o diesel por causarem um menor impacto ambiental. Entretanto, devido suas propriedades fluidodinâmicas, o seu uso in natura em motores é limitado. Ainda assim, os mesmos podem ser utilizados como componentes de microemulsões combustíveis. O objetivo deste trabalho é obter três dif
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2012
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11. Introdução de misturas de GNV e hidrogênio (Hidrano) em veículos convencionais no Brasil e seus impactos econômicos, ambientais e energéticos / Introduction of CNG and hydrogen (HCNG) for conventional vehicles and its economic, environmental and energy impacts
Several strategies have been proposed to introduce hydrogen in the economy specifically in the transport sector in order to reduce environmental impacts of conventional fuels. One of the strategies implies in adding hydrogen to compressed natural gas (HCNG), making use of the existing refueling stations and natural gas fleet. Thus the costs and time for the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2012
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12. UM ESTUDO COMPARATIVO DAS EFICIÊNCIAS E EMISSÕES DE POLUENTES GERADOS NA COMBUSTÃO ASSISTIDA DO GLICEROL BRUTO E DA GLICERINA / COMPARATIVE STUDY OF EFFICIENCIES AND EMISSION OF POLLUTANTS GENERATED IN ASSISTED COMBUSTION OF GROSS AND GLYCERIN GLYCEROL
O glicerol é o principal subproduto gerado na produção de biodiesel. Sua geração representa 10% do volume de biodiesel obtido no processo. Em 2011, o glicerol co-gerado pela indústria do biodiesel foi de aproximadamente 264 milhões de litros, sendo o consumo médio anual de aproximadamente 11 milhões de litros. Este excedente é muitas vezes descarta
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/04/2012