Experimental studies on biodiesel production from leather industry waste fat and its effect on diesel engine characteristics

Keskin, Ahmet; Şen, Mehmet Umut; Emiroğlu, A. Osman

doi:10.1016/j.fuel.2020.118000

Cited by 50 publications

(12 citation statements)

References 27 publications

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“…The reduction in smoke opacity is mainly due to high fuel-borne oxygen and lower carbon content in biodiesel, which results in complete combustion and restricts the formation of smoke. Keskin et al [148] observed a similar trend by using biodiesel produced from turkey-rendered fat biodiesel. They explained that the higher oxygen content and lower C/H ratio of biodiesel led to the reduction.…”

Section: Effect On Smoke Emissionsmentioning

confidence: 68%

A Comprehensive Review of the Properties, Performance, Combustion, and Emissions of the Diesel Engine Fueled with Different Generations of Biodiesel

Zhang

Zhong

et al. 2022

Processes

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Due to the increasing air pollution from diesel engines and the shortage of conventional fossil fuels, many experimental and numerical types of research have been carried out and published in the literature over the past few decades to find a new, sustainable, and alternative fuels. Biodiesel is an appropriate alternate solution for diesel engines because it is renewable, non-toxic, and eco-friendly. According to the European Academies Science Advisory Council, biodiesel evolution is broadly classified into four generations. This paper provides a comprehensive review of the production, properties, combustion, performance, and emission characteristics of diesel engines using different generations of biodiesel as an alternative fuel to replace fossil-based diesel and summarizes the primary feedstocks and properties of different generations of biodiesel compared with diesel. The general impression is that the use of different generations of biodiesel decreased 30% CO, 50% HC, and 70% smoke emissions compared with diesel. Engine performance is slightly decreased by an average of 3.13%, 89.56%, and 11.98% for higher density, viscosity, and cetane, respectively, while having a 7.96% lower heating value compared with diesel. A certain ratio of biodiesel as fuel instead of fossil diesel combined with advanced after-treatment technology is the main trend of future diesel engine development.

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Section: Effect On Smoke Emissionsmentioning

confidence: 68%

A Comprehensive Review of the Properties, Performance, Combustion, and Emissions of the Diesel Engine Fueled with Different Generations of Biodiesel

Zhang

Zhong

et al. 2022

Processes

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“…The received test results showed the applicability of ester blends of this raw material with diesel (10% and 30% ester in diesel), as the cetane number of the blends for the in-cylinder pressure and heat release curves were very similar to those of diesel. It should be noted that the previously discussed ecological effect was observed in the form of lower PM [23] and NOx emissions [24]. The lower heating value (LHV) of fat is lower than that of diesel, and when using animal fats as fuel, an increase in the brake specific fuel consumption and a decline in the brake thermal efficiency occurs because of the changing combustion process [25].…”

Section: Introductionmentioning

confidence: 92%

Study of Indicators of CI Engine Running on Conventional Diesel and Chicken Fat Mixtures Changing EGR

et al. 2021

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This article presents a change in the indicators of a compression ignition (CI) engine by replacing conventional diesel fuel (D100) with pure chicken fat (F100) and mixtures of these fuels. Mixtures of diesel and fat with volume ratios of 70/30, 50/50 and 30/70 were used. Research of the fuel properties was conducted. In order to reduce the fuel viscosity, blends of fat and diesel were heated. The experimental research was conducted at different engine loads with exhaust gas recirculation (EGR) both off and on. The conducted analysis of the combustion process revealed a significant change in the rate of heat release (ROHR) when replacing diesel with chicken fat. Chicken fat was found to increase the CO2 and CO emissions, leaving hydrocarbon (HC) emissions nearly unchanged. Having replaced the D100 with diesel and chicken fat mixtures or F100, a significant reduction in smoke and nitrogen oxide (NOx) emissions was observed when EGR was off. When EGR was on, the smoke level increased, but the blends with chicken fat reduced it significantly, and the increased fat content in the fuel mixture reduced the NOx emissions. The engine’s brake specific fuel consumption (BSFC) increased while the brake thermal efficiency (BTE) decreased, having replaced conventional diesel with chicken fat due to differences in the fuel energy properties and the combustion process.

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“…Many studies have been conducted in recent past to trace impairing and lethal impacts of PM 2.5 and their organic constituents on fauna [ 5 – 9 ] as well as flora [ 10 – 12 ]. As a consequence, many upgraded fuels [ 13 ] and purification techniques for industrial emissions are being worked upon [ 14 – 16 ]. Organic constituents are considered as one of the most abundant components of urban PM2.5 (up to 90%).…”

Section: Introductionmentioning

confidence: 99%

Identification of Carbonaceous Species and FTIR Profiling of PM2.5 Aerosols for Source Estimation in Old Delhi Region of India

Shankar

Gadi

Sharma

et al. 2022

MAPAN

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In this study, PM 2.5 samples from a traffic-influenced site in old Delhi were collected from January 2021 to June 2021 (January–March, 2021: months with regular activities; April–June, 2021: partially restricted months due to second wave of pandemic) and analysed to assess noteworthy effect on their infrared (IR) spectral features and carbonaceous content viz., organic carbon (OC) and elemental carbon (EC) and their sub-fractions with their link to major sources in the vicinity of the sampling site of Delhi. Absorbance peaks for the structural and functional groups for previously identified compounds associated with vehicular/combustion/biogenic emissions at the site were notable. Intensive peaks for C=C, C–H, O–H and NH 4 NO 3 were observed on certain days pointing towards enhanced emission of the related compounds. Lower spectral peaks were observed for March and first half of April probably due to transitioning meteorological variables and imposed restrictions. Monthly variation in ratios, such as OC/EC, EC/TC and OM/OC, revealed about the probable emission sources. Comparatively higher peaks/values were observed during January, February and June. The overall results followed a general pattern of variation for regular days.

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Experimental studies on biodiesel production from leather industry waste fat and its effect on diesel engine characteristics

Cited by 50 publications

References 27 publications

A Comprehensive Review of the Properties, Performance, Combustion, and Emissions of the Diesel Engine Fueled with Different Generations of Biodiesel

A Comprehensive Review of the Properties, Performance, Combustion, and Emissions of the Diesel Engine Fueled with Different Generations of Biodiesel

Study of Indicators of CI Engine Running on Conventional Diesel and Chicken Fat Mixtures Changing EGR

Identification of Carbonaceous Species and FTIR Profiling of PM2.5 Aerosols for Source Estimation in Old Delhi Region of India

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