Experimental investigation on spray, evaporation and combustion characteristics of ethanol-diesel, water-emulsified diesel and neat diesel fuels

Wang, Zhaowen; Wu, Songbin; Huang, Yuhan; Huang, Sheng; Shi, Shaojun; Cheng, Xiaobei; Huang, Ronghua

doi:10.1016/j.fuel.2018.05.129

Cited by 50 publications

(16 citation statements)

References 81 publications

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“…Mainly, this technique is applied for visual spray combustion analysis in a supercritical environment. 38 Table 2 represents the test conditions followed during Spray study. interior liquid core section and the external liquid gas transfer section.…”

Section: Experimental Setup and Proceduresmentioning

confidence: 99%

Experimental study of spray analysis for Palmarosa biodiesel‐diesel blends in a constant volume chamber

Sathiyamoorthi¹,

Gomathinayakam

Munuswamy³

et al. 2021

Env Prog and Sustain Energy

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The diesel spray process is one of the critical development zones in terms of diesel engine-out emission regulations. Detailed analysis of Palmarosa oil methyl esters fuel spray properties has been studied and made a comparison analysis with mineral diesel. Experiments under various injection pressures (200, 225, and 250 bars) have been investigated in a constant volume chamber (CVC). Studies have shown that the longest and shortest spray tip penetrations (STPs) for biodiesel and diesel were observed. A higher spray cone angle of about 17.5 ms for PMO fuels and 11.4 ms for diesel were found. The Sauter mean diameter for all test blends decreased with an increase in fuel injection pressure with the maximum reduction of 15 μm. Additionally, the spray volume of 0.4 cm 3 and spray area of 5 cm 2 increased respectively during 250 bars injection pressure. STP increased by 14.3 ms for Palmarosa oil methyl ester than diesel at 250 bars injection pressure. It is concluded that the fuel properties such as density and viscosity are the main influencing factors for spray analysis and play a significant role in the fuel injection system.

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Section: Experimental Setup and Proceduresmentioning

confidence: 99%

Experimental study of spray analysis for Palmarosa biodiesel‐diesel blends in a constant volume chamber

Sathiyamoorthi¹,

Gomathinayakam

Munuswamy³

et al. 2021

Env Prog and Sustain Energy

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“…Concerns of environmental protection and fossil fuel shortage have stimulated the studies on high-efficiency engines. 1–4 Many researchers have devoted to improving the diesel engine performance, and their results confirmed that the flow characteristics inside diesel nozzles and the near-nozzle spray breakup process were crucial to subsequent far-field spray, combustion and emissions. 5–7 Moreover, cavitating flow, a common flow phenomenon occurring in engine nozzles, has been confirmed to enhance the production of turbulence intensity near nozzle exit that contributes to the primary disintegration of the liquid jet and increase spray cone angle, 8–10 especially the higher injection pressures for better spray characteristics.…”

Section: Introductionmentioning

confidence: 96%

Visual experimental investigations of string cavitation and residual bubbles in the diesel nozzle and effects on initial spray structures

Guo

Zhang

et al. 2018

International Journal of Engine Research

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In this article, optical experiments on string cavitation and residual bubbles inside the real-size transparent tapered diesel nozzle and near-nozzle spray structures were performed based on a high-pressure common rail fuel injection system with a high-speed camera. The tapered nozzle which has high flow efficiency with weak or even no geometric cavitation has been widely used in commercial injectors, while there still exists string cavitation which may also influence the in-nozzle flow and subsequent spray. This article put focus on the tapered nozzle and the result indicated that the in-nozzle string cavitation provided a reasonable explanation for the two bumps of spray cone angles during the opening and closing stages of needle of real diesel engine injection processes. The suction and compression of air bubbles at the start and end stages of injection processes, and the various shot-to-shot near-nozzle spray patterns were captured and analyzed. These different near-nozzle spray patterns were attributed to the distribution of residual bubbles inside the nozzle orifice. The residual bubbles were survived from the last injection or sucked into the nozzle during needle opening stages. Stagnant bubbles were compressed and then accelerated the residual fuel which was close to the injector tip, leading to the formation of mushrooms. This study confirmed that the initial mushroom and the tail were generated by the interactions between the residual/sucked bubbles and the residual/initial fuel, and the leading mushroom was incurred by the combination of the transverse expansion of the jet and the laminar layer theory. This work pointed out and analyzed the new sources of the cycle-to-cycle variation of air/fuel mixture and spray.

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“…Globally many countries have fuel mandates specifying quantity and type of biofuel to use although the percentages may vary from country to country [403,404]. For example water emulsion in diesel fuel is regarded as the most economical and effective method to reduce PM and NOX emissions [405]. Emulsion in diesel fuel extends the combustible limit compared to using nonemulsified diesel fuel.…”

Section: Emulsion and Microemulsion Biodiesel Production Techniquesmentioning

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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Experimental investigation on spray, evaporation and combustion characteristics of ethanol-diesel, water-emulsified diesel and neat diesel fuels

Cited by 50 publications

References 81 publications

Experimental study of spray analysis for Palmarosa biodiesel‐diesel blends in a constant volume chamber

Experimental study of spray analysis for Palmarosa biodiesel‐diesel blends in a constant volume chamber

Visual experimental investigations of string cavitation and residual bubbles in the diesel nozzle and effects on initial spray structures

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

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