Comparison of Long-Chain Alcohol Blends, HVO and Diesel on Spray Characteristics, Ignition and Soot Formation

Preuß, Josefine; Munch, Karin; Andersson, Mats; Denbratt, Ingemar

doi:10.4271/2019-01-0018

Cited by 8 publications

(2 citation statements)

References 38 publications

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“…The results were confirmed experimentally in an optical engine. In contrast, Preuss et al [21] used a high-pressure injection chamber to investigate spray characteristics and found a longer liquid penetration length but smaller vapor phase penetration for HVO compared with diesel. Engine testing on a large scale was conducted by Neste Oil, Helsinki Region Transport, VTT Technical Research Centre and Proventia Emission Control [22].…”

Section: Introductionmentioning

confidence: 95%

Performance Improvement and Emission Reduction Potential of Blends of Hydrotreated Used Cooking Oil, Biodiesel and Diesel in a Compression Ignition Engine

Sonthalia,

Kumar

2023

Energies

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The positive effect of decarbonizing the transport sector by using bio-based fuels is high. Currently, biodiesel and ethanol are the two biofuels that are blended with fossil fuels. Another technology, namely, hydroprocessing, is also gaining momentum for producing biofuels. Hydrotreated vegetable oil (HVO) produced using this process is a potential drop-in fuel due to its improved physiochemical properties. This study aimed to reduce the fossil diesel content by blending 20% and 30% HVO and 5%, 10% and 15% waste cooking oil biodiesel on a volume basis. The blends were used to conduct a thorough performance examination of a single-cylinder compression ignition engine. The thermal efficiency of the engine was enhanced by the addition of biodiesel to the blend. The efficiency increased as the proportion of biodiesel in the mix increased, although it was still less efficient than diesel. The maximum improvement in thermal efficiency of 4.35% was observed with 20% blending of HVO and 15% blending of biodiesel compared with 20% blending of HVO and diesel. However, the HC (decrease of 30%), CO (decrease of 23.5%) and smoke (decrease of 21.1%) emissions were observed to be the lowest with 30% blending of HVO and 15% blending of biodiesel. A fuzzy-logic-based Taguchi method and Grey’s method were then applied to find the best blend of HVO, biodiesel and diesel. The combination of the two methods made it easier to carry out multi-objective optimization. The brake thermal efficiency (BTE), smoke and NO emissions were selected as the output parameters to optimize the HVO and biodiesel blend. The optimization study showed that 30% blending of HVO and 15% blending of biodiesel was the best blend, which was authenticated using the confirmation experiment.

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Section: Introductionmentioning

confidence: 95%

Performance Improvement and Emission Reduction Potential of Blends of Hydrotreated Used Cooking Oil, Biodiesel and Diesel in a Compression Ignition Engine

Sonthalia,

Kumar

2023

Energies

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“…33,34 In the literature, some studies have investigated the impact of injection timing (IT) on the combustion, emission, and performance behaviors of a compression ignition engine fed by different alternative fuels. [35][36][37][38] investigated the effect of IT on the combustion, performance, and emissions of a small diesel engine fueled with Jatropha (Jatropha curcas) vegetable oil biodiesel. It was reported that retarding the injection timing by 3°increased the thermal efficiency by about 8% and decreased the specific fuel consumption by about 9%.…”

Section: Introductionmentioning

confidence: 99%

Impact of Pentanol Addition and Injection Timing on the Characteristics of a Single-Cylinder Diesel Engine

2019

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In this study, first, the effects of addition of 10% (Pen10), 20% (Pen20), and 30% (Pen30) pentanol on the performance, combustion, and emissions of a diesel engine were investigated. Then, the effect of injection timing for Pen30 fuel was investigated by changing the original injection timing of 20 to 22 and 24° BTDC (before top dead center). The engine tests were performed under different loads at 2400 rpm. The results indicated that, with the advancing of the diesel injection timing and increasing the pentanol ratio in the fuel blends, the ignition delay increased and the start of combustion delayed. The maximum heat release rate and cylinder pressure values of pentanol blends were found to be higher than those of diesel fuel. Both the maximum cylinder pressure and the maximum heat release rate increased with the advancing of the diesel injection timing to 22 and 24° BTDC. Brake-specific fuel consumption value of Pen30 was higher than that of diesel fuel at the original injection timing, and it decreased as the injection timing was advanced to 22 and 24° BTDC as compared to that of the original injection timing. NO x emission decreased with the increasing pentanol fraction. Also, NO x emissions increased significantly at 24° BTDC injection timing but decreased slightly at 22° BTDC injection timing. Smoke emissions of the pentanol blends are lower than those of the diesel fuel under all operating conditions as well as decreased with the advancing injection timing.

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Combustion and soot characteristics of hydrotreated vegetable oil compression-ignited spray flames

Bjørgen

Emberson

Løvås

2020

Fuel

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Comparison of Long-Chain Alcohol Blends, HVO and Diesel on Spray Characteristics, Ignition and Soot Formation

Cited by 8 publications

References 38 publications

Performance Improvement and Emission Reduction Potential of Blends of Hydrotreated Used Cooking Oil, Biodiesel and Diesel in a Compression Ignition Engine

Performance Improvement and Emission Reduction Potential of Blends of Hydrotreated Used Cooking Oil, Biodiesel and Diesel in a Compression Ignition Engine

Impact of Pentanol Addition and Injection Timing on the Characteristics of a Single-Cylinder Diesel Engine

Combustion and soot characteristics of hydrotreated vegetable oil compression-ignited spray flames

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