Performance analysis of a mono-cylinder diesel engine using soy straight vegetable oil as fuel with varying temperature and injection angle

Wander, Paulo Roberto; Altafini, Carlos Roberto; Moresco, Augusto Leandro; Colombo, Adelair Lino; Lusa, Diogo

doi:10.1016/j.biombioe.2011.06.024

Cited by 21 publications

(14 citation statements)

References 9 publications

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“…As consequence, greater consumption of soybean vegetable oil is required to deliver the same amount of energy when operating with diesel oil only. In Wander et al [28], the authors found similar results.…”

Section: Effect Of Natural Gas On Engine Performance Parametersmentioning

confidence: 60%

“…They can possibly decrease NO x emissions, which are one of the biggest worries of the world today [27]. According to Wander et al [28], the advantage of using vegetable oils is to minimize pollutant emissions due to the lower sulfur released compared to diesel. Moreover, the utilization of straight vegetable oil has the potential to give farmers the possibility of producing their own fuel.…”

Section: Introductionmentioning

confidence: 99%

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Experimental analysis of a small engine operating on diesel–natural gas and soybean vegetable oil–natural gas

Telli

Altafini

Rosa

et al. 2018

J Braz. Soc. Mech. Sci. Eng.

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The purpose of this article is to investigate the effects of an unmodified small engine operating on diesel oil-natural gas (DO-NG) and soybean vegetable oil-natural gas at intermediate load. This is significant to reduce our dependency from diesel oil and the emissions of warming gases. Although it is important to highlight that the literature regarding this experimental conditions is scarce, due the use of soybean vegetable oil and natural gas in dual-fuel mode, characterizing a totally diesel oil replacement. The experiments were conducted in a single-cylinder diesel engine coupled to a generator. Natural gas was introduced at the engine intake manifold. The diesel oil and soybean vegetable oil substitution rates were from 16.6 to 91.1% and from 17.6 to 90.7%, respectively. The experimental results were satisfactory being observed a decrease in specific fuel consumption (until 80% of replacement) and a maximum reduction around 80% in NO x emissions. On the other hand, there have been an increase in CO emissions and a decrease in thermal efficiency for all conditions performed. Soybean vegetable oil-natural gas operation demonstrates same trends with a little higher specific fuel consumption and NO x emission than DO-NG.

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Section: Effect Of Natural Gas On Engine Performance Parametersmentioning

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Experimental analysis of a small engine operating on diesel–natural gas and soybean vegetable oil–natural gas

Telli

Altafini

Rosa

et al. 2018

J Braz. Soc. Mech. Sci. Eng.

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“…Some pathways were explored but eliminated from this study early due to their final fuel not being usable for direct combustion (e.g., straight vegetable oil). According to the DOE's Vehicle Technologies Office, using straight vegetable oil leads to reduced engine life because of the buildup of carbon deposits in the engine and vegetable oil buildup in the engine lubricant 21–23 …”

Section: Methodsmentioning

confidence: 99%

Adoption of biofuels for marine shipping decarbonization: A long‐term price and scalability assessment

Tan

Harris

Tifft

et al. 2022

Biofuels Bioprod Bioref

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This study assessed the long-term annual biofuel production capacity potential and price in the United States and shed light on the prospect of biofuel adoption for marine propulsion. A linear programming model was developed to assist the projections and provide insightful analyses. The projected long-term (2040) maximum annual capacity of biofuels in the United States is 245 million metric tons (Mt) or 65 billion gallons of heavy fuel oil gallon equivalent (HFOGE) when based on the median feedstock availability. Between 2022 (near-term) and 2040, the potential biofuel capacity increases by over 40%, attributed to increased feedstock availability. At a price range up to $500/t, biodiesel is the main product, and the annual capacity (12 Mt) is limited to feedstock availability constraints. Biodiesel and corn ethanol are the main biofuels at a price range up to $750/t. At a higher price point (above $750/t), the biofuel types and annual capacities increase substantially (218 Mt per year). Biofuels above this price include gasoline-, jet-, and diesel-range blendstocks, as well as bio-methanol, bio-propane, and biogas. This study concludes that the US domestic feedstock availability coupled with advanced conversion technologies can produce substantial amounts of biofuels to achieve a critical mass and be impactful as alternative marine fuels. There is also a need to improve the biofuel price for marine shipping adoption. Policies and economic incentives that provide temporary financial support would help facilitate maritime biofuel adoption.

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“…The high viscosity and surface tension are the main problems in their application (see Table 1). Still, practical engine running tests show an increase in torque and power compared to a Diesel with increased specific consumption and a slightly lower engine efficiency [1]. The drawback of SVOs is that spray experiments show poor atomisation and a liquid core near the nozzle hole [2,3].…”

Section: Introductionmentioning

confidence: 99%

Comparative study of high-speed imaging of the initial phase of vegetable oil spray formation in a diesel injector

Perera

Hayashi

2021

ICLASS

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Straight Vegetable Oils (SVOs) combustible properties supported the research of its combustion in compression ignition engines in substitution for Diesel. The analysis of the initial stage of spray formation is essential to understand better and predict the processes involved in fuel atomisation. This work presents a comparative study of the initial phase of spray formation of Soybean oil to those obtained for the injection of Diesel at an In-Cylinder Pressure (ICP) of 2.5 MPa at room temperature. With a High-Speed Photographic Camera (HSFC) through a non-intrusive measurement technique. Experiments for Soybean oil show a long intact solid-liquid core until the primary breakup at 200 µs Fuel Injection Time (FIT) and poorly spray formation development until 300 µs FIT a fast penetration distance at the same FIT analysis with diesel. This low atomisation behaviour inside the engine combustion chamber results in incomplete combustion, low efficiency, carbon products deposition, and increased fuel consumption. These results emphasise the necessity of engine compression rate calibrations to achieve long-term running reliability using SVOs exclusively.

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Performance analysis of a mono-cylinder diesel engine using soy straight vegetable oil as fuel with varying temperature and injection angle

Cited by 21 publications

References 9 publications

Experimental analysis of a small engine operating on diesel–natural gas and soybean vegetable oil–natural gas

Experimental analysis of a small engine operating on diesel–natural gas and soybean vegetable oil–natural gas

Adoption of biofuels for marine shipping decarbonization: A long‐term price and scalability assessment

Comparative study of high-speed imaging of the initial phase of vegetable oil spray formation in a diesel injector

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