The effect of cetane number and oxygen content in the performance and emissions characteristics of a diesel engine using biodiesel blends

Maroa, Semakula; Inambao, Freddie L.

doi:10.17159/2413-3051/2019/v30i2a5337

Cited by 22 publications

(12 citation statements)

References 77 publications

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“…Biodiesel fuels have a variety of feedstocks such as used vegetable oil, waste plastics, waste biomass, animal fats (tallow) and recently microalgae, all which can be processed into biodiesel [40]. Biodiesel has the ability to be utilized as a fuel with or without engine modification which gives it high technical advantage [41,42].…”

Section: Introductionmentioning

confidence: 99%

Assessing the Effects of Engine Load on Compression Ignition Engines Using Biodiesel Blends

Maroa¹,

Inambao²

2021

Internal Combustion Engine Technology and Applications of Biodiesel Fuel

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This study evaluated the performance of a diesel engine operated with waste plastic biodiesel fuel (WPPO) blends. Findings were that at all engine loads (from idling to full load) the emissions of carbon monoxide (CO), unburnt hydrocarbon (UHC) and carbon dioxide (CO2) were low compared to conventional diesel (PD), although the emissions of NOX were higher. The brake specific fuel consumption (BSFC) for the blends dropped while the brake thermal efficiency (BTE) increased with load for all blends until intermediate load when it decreased. WPPO blends had a higher viscosity compared to PD. CO emissions for blend 95/WPPO5 at all engine speed idling modes were 285 ppm, 298 ppm, 320ppm, and 388 ppm while PD emissions were 270 ppm, 295 ppm, 315 ppm and 365 ppm respectively. The values for UHC for blend 95/WPPO5 at all modes were 35 ppm, 28 ppm, 22 ppm, and 18 ppm compared to PD fuel with 20ppm, 25 ppm, 30 ppm, and 40ppm respectively. The NOX emissions for PD fuel at all modes were 175 ppm, 225 ppm, 300 ppm and 375 ppm compared to blend 95/WPPO5 at 195 ppm, 245 ppm, 335 ppm, and 397 ppm. The BSFC values for blend 95/WPPO5 at all modes were 0.48 kg/kW.h, 0.41 kg/kW.h, 0.35 kg/kW.h and 0.4 kg/kW.h compared to PD at 0.45 kg/kW.h, 0.39 kg/kW.h, 0.33 kg/kW.h and 035 kg/kW.h respectively.

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Section: Introductionmentioning

confidence: 99%

Assessing the Effects of Engine Load on Compression Ignition Engines Using Biodiesel Blends

Maroa¹,

Inambao²

2021

Internal Combustion Engine Technology and Applications of Biodiesel Fuel

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“…Among the leading problems associated with viscosity of fuel, include: Inefficient mixing of fuel which results into incomplete combustion [463]. Early injection due to the high line of pressure thus moving the start of combustion (SOC) closer to the top dead centre (TDC).…”

Section: Kinematic Viscositymentioning

confidence: 99%

“…For example smoke, UHC, NOX emissions reduce, with high CN. This has led to increased efforts to improve biodiesel fuel cetane numbers using additives or cetane improvers [463].…”

Section: Cetane Numbermentioning

confidence: 99%

Waste To Energy Feedstock Sources for the Production of Biodiesel as Fuel Energy in Diesel Engine – A Review

Maroa¹,

Inambao²

2021

Adv. sci. technol. eng. syst. j.

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In the recent past, there has been a renewed shift into biomass and other recycled waste sources for biodiesel production and utilization. This is a critical area of research and study in which this present work intends to review and identify gaps in literature by shifting the focus of review to non-plant based sources for biodiesel production. Traditional biodiesel feedstock sources have always presented a conflict of food security versus energy. This shift will be identified in literature to see if change to non-plant-based feedstocks sources has increased food security by discouraging the contribution of commercial farming for the production of biodiesel. This work will identify biodiesel families, generations, traditional and non-traditional feedstocks for biodiesel production. It will also discuss the non-edible biodiesel feedstocks sources in relation to waste to energy recovery. The other factor this work will review is to study how the use of non-plant based feedstocks such as municipal solid waste has improved environmental protection by reducing pollution and landfilling. In other words, this work will review the impact of Using waste municipal solid biomass resources such as waste tyres and waste plastics and changing them into energy sources. This review study aims at increasing environmental awareness, sustainability and reporting the progress made in waste to energy policy shift in many countries globally. This review will look at socio-economic opportunities in recycling besides the academic and research impacts of waste to energy policies adopted in many countries. The review will climax with a conclusion and future trends in waste to energy in relation to municipal solid waste resources.

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“…57 Pode se observar que o número de cetano pertencente ao biodiesel de lupino é maior que o diesel mineral e só é superado pelo biodiesel obtido a partir de sebo bovino, com esta vantagem melhora-se a ignição em ambientes frios e aumenta-se a durabilidade do motor. 75 O poder calorífico do biodiesel de lupino é baixo considerando os outros valores, este indicador representa a energia em forma de calor emitida durante a combustão, no entanto, esta propriedade não possui um valor mínimo padrão.…”

Section: Figura 8 Estruturas Químicas Dos Principais éSteres Metílicunclassified

Potential of Andean lupine (Lupinus mutabilis) for biodiesel production via methanolic route: A review

Zamora¹,

Zamora-Burbano²,

Varão³

et al. 2020

Rev. Virtual Quim.

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Biodiesel can be obtained from extracted oil of different oilseeds. The production of this biofuel is carried out by several routes, among them the most common way involves two main stages: the first one related to oil extraction from oilseeds and the second one, includes the conversion of that oil into biodiesel. This review work presents a technical feasibility study about production and use of Andean lupine oil (Lupinis mutabilis) for biodiesel production through methanolic route. Besides, it is described some theoretical physic-chemical properties of Andean lupine biodiesel obtained by mathematical. According to similarity of physic-chemical characteristics between Andean lupine and soy oils, it can be evidenced the possibility of utilization of Andean lupine seeds for bioenergy. The theoretical properties calculated for Andean lupine biodiesel, such as density (20ºC), cetane index, heat power and dynamic viscosity (40ºC) are close to soy biodiesel properties and befitting with the limits stablished by Brazilian laws that regulate the biodiesel industry. Considering the exhibited data in this work, it can be affirmed, from a technical point of view, that Andean lupine can be considered promising for energy market, especially for the Andes ecoregion. However, the suggested processes should be experimentally implemented with the purpose to assess the proposed conditions and thus to compare the theoretical approaches, due to the properties of Andean lupine biodiesel were not found in experimental data of biodiesel production from Andean lupine seeds. O biodiesel pode ser obtido a partir do óleo extraído de diferentes oleaginosas. A produção deste biocombustível é realizada por meio de várias rotas, entre elas a mais comum envolve duas etapas principais: a primeira relacionada com a extração do óleo das sementes e a segunda, com a conversão deste óleo em biodiesel. O presente trabalho de revisão apresenta um estudo de viabilidade técnica de produção e utilização do óleo do lupino (Lupinis mutabilis) para cadeia produtiva de biodiesel por rota metílica, bem como descreve algumas propriedades físico-químicas teóricas do biodiesel de lupino obtidas por meio de modelos. Diante da similitude das características físico-químicas dos óleos de lupino e de soja, evidencia-se a possibilidade de utilização desta oleaginosa para o setor da bioenergia. As propriedades teóricas calculadas, como densidade (20ºC), número de cetano, poder calorífico e viscosidade cinemática (40ºC), para biodiesel de lupino apresentam-se próximas as do biodiesel de soja e condizentes com os limites estabelecidos pelas normas que regulamentam o setor no Brasil. Frente aos dados elucidados neste estudo, pode-se afirmar que do ponto de vista técnico a oleaginosa lupino pode ser considerada promissora para o mercado da energia, notadamente para a ecorregião dos Andes, no entanto os processos sugeridos devem ser implementados experimentalmente com o propósito de avaliar as condições propostas e assim comparar as aproximações teóricas, uma vez que não fo...

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The effect of cetane number and oxygen content in the performance and emissions characteristics of a diesel engine using biodiesel blends

Cited by 22 publications

References 77 publications

Assessing the Effects of Engine Load on Compression Ignition Engines Using Biodiesel Blends

Assessing the Effects of Engine Load on Compression Ignition Engines Using Biodiesel Blends

Waste To Energy Feedstock Sources for the Production of Biodiesel as Fuel Energy in Diesel Engine – A Review

Potential of Andean lupine (Lupinus mutabilis) for biodiesel production via methanolic route: A review

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