Performance effects and economic viability of high-hydrated ethanol fumigation and diesel direct injection in a small compression ignition engine

Rosa, Josimar Souza; Lorenzini, Giulio; Altafini, Carlos Roberto; Wander, Paulo Roberto; Telli, Giovani Dambros; Rocha, Luíz Alberto Oliveira

doi:10.18280/mmep.060101

Cited by 12 publications

(6 citation statements)

References 18 publications

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“…In the experiments, measurements of electrical power were made by means of an energy analyzer and the consumption of fuels gravimetrically by digital scale. With the measurements made, the specific fuel consumption (SFC) in [g/kW•h] was calculated according to Rosa et al (2019b) by Eq. (1).…”

Section: Methodsmentioning

confidence: 99%

“…Nowadays, there is a growing interest in biofuels, especially those that contribute to the reduction of pollutant emissions. Due to the fossil nature of diesel fuel, it is necessary to study alternative biofuels to replace it, especially in internal combustion engines, which are equipment very present in the current society, both for vehicle propulsion and for electric power generation (Rosa et al, 2019a).…”

Section: Introductionmentioning

confidence: 99%

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Small Engine-Generator Set Operating on Dual-Fuel Mode With Ethanol – Castor Oil Blends

Turmina

Altafini

Costa

et al. 2020

RETERM

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The increase in greenhouse gas emissions and our dependence on fossil fuels have motivated researchers to seek the use of renewable fuels in internal combustion engines, which can be produced locally and have clean combustion. The blending method in diesel engines has been recognized as an effective alternative to partially or totally replace the use of diesel fuel. In this regard, this paper studied the operation of a small engine-generator set in mono-fuel mode (diesel fuel - DO) and in dual-fuel mode using hydrous ethanol (HET) and castor oil (OM) blends, indicating a total replacement of diesel fuel. Efficiency, power, specific fuel consumption and gaseous emissions were assessed in a single cylinder diesel cycle engine. The percentages in volume of the HET-OM samples were: 75% - 25%, 70% - 30%, 60% - 40%, and 50% - 50%. The exhaust gas temperature decreased with the mixtures. Carbon monoxide emission decreased 57%, carbon dioxide decreased 9.8%, and nitrogen oxides reduced 19%. It was also observed that the percentage of smoke opacity tends to decrease close to zero with addition of ethanol. Hydrocarbon emissions increased with rising of the OM concentration and the same for the specific fuel consumptions, which was 25.4% higher than diesel fuel. The best fuel conversion efficiency was achieved with the blend HET75-OM25, being 9% higher compared to diesel fuel operation. Power on diesel fuel operation showed a better result keeping stable, with the increase of the compression ratio and the delay of the start of injection. In general, the results confirmed that the performance is comparable to that of diesel fuel, indicating that renewable fuels appear as an alternative for the reduction of the environmental impacts and the reduction of fossil fuels consumption.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Small Engine-Generator Set Operating on Dual-Fuel Mode With Ethanol – Castor Oil Blends

Turmina

Altafini

Costa

et al. 2020

RETERM

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“…Generally, renewable fuels have the potential to achieve near zero CO 2 emissions in Well-to-Wheel balance, decreasing greenhouse gas emissions levels [3]. In the literature, many renewable fuels have been investigated and have emerged as a promising candidate to replace conventional fuels, such as biodiesel [4,5], ethanol [6,7] and straight vegetable oils [8,9].…”

Section: Introductionmentioning

confidence: 99%

Study of the influence of adding Al2O3 nanoparticles to biodiesel on the performance and emissions characteristics of a diesel engine

Moresco Smaniotto,

Rosa,

Dambros Telli

2024

Sci. cum Ind.

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The use of biodiesel in compression ignition (CI) engines has great potential to reduce emissions and the dependence on fossil fuels. However, the complete adoption of biodiesel in CI engines is limited by several drawbacks. A promising solution to these problems is the addition of nanoparticles to biodiesel or diesel-biodiesel blends. Hence, this paper studies the impact of adding aluminum oxide (Al2O3) nanoparticles on the performance and emission characteristics of a diesel engine running on biodiesel and a mixture of diesel and biodiesel. Al2O3 nanoparticles were added at concentrations of 50, 100 and 150 ppm to biodiesel (B100) and a mixture of 50 % biodiesel and 50 % commercial diesel (B50). The results indicated an increase in fuel conversion efficiency and a reduction in specific fuel consumption. The highest fuel conversion efficiency was 26.5 % for B50 with 100 ppm of Al2O3, indicating an improvement of around 28.6 % compared to diesel fuel (B0). In general, CO emissions were reduced with the addition of nanoparticles, with a maximum reduction of 42.8 % for B100 with 50 ppm Al2O3 compared to B0. The highest reduction in NOX emissions was 30.3 % for B50 with 100 ppm Al2O3 compared to pure diesel B0.

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“…The most common methods to replace diesel fuel with ethanol in CI engines are the ethanol and diesel blends method [12][13][14] and the ethanol fumigation method [15][16][17][18]. The blend method is the simplest: mixing ethanol to the conventional diesel fuel and injecting the blend directly into the cylinder through the conventional diesel injector.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of a Dual-Fuel Generator Set Operating on Diesel Fuel Direct Injected and Hydrous Ethanol Fumigation at Different Loads

Telli¹,

Altafini²,

Costa³

et al. 2020

IJDNE

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The sizable global use of fossil energy and the worries about harmful emissions to the environment and human health have led investigations focused on using renewable fuels. Ethanol seems to be a desirable renewable fuel due to availability and significant production. The ethanol fumigation in compression ignition engines has been explored as a possible solution to enhance efficiency and decrease harmful and pollutant gases. This study investigates the effects of a generator set running on directly injected diesel fuel containing 7% biodiesel in volume and port fuel injected hydrous ethanol in different loads. The experiments were carried out in a diesel engine with specific loads, and the ethanol substitution rate ranged from 9% to 52% by energy. Results showed a significant decrease up to 61% in smoke opacity. An improvement of about 9.7% at 7.0 kW in global thermal efficiency was observed. Nevertheless, the other loads' efficiency deteriorated, resulting in a maximum decrease of about 14.6% at 4.0 kW. The total specific fuel consumption increased when ethanol was used, whereas the exhaust gas temperature decreased. The lowest NOX emissions found was 290 ppm at 6.0 kW and an ethanol energy ratio of 21%, although an increase in CO emissions was observed.

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Performance effects and economic viability of high-hydrated ethanol fumigation and diesel direct injection in a small compression ignition engine

Cited by 12 publications

References 18 publications

Small Engine-Generator Set Operating on Dual-Fuel Mode With Ethanol – Castor Oil Blends

Small Engine-Generator Set Operating on Dual-Fuel Mode With Ethanol – Castor Oil Blends

Study of the influence of adding Al2O3 nanoparticles to biodiesel on the performance and emissions characteristics of a diesel engine

Experimental Study of a Dual-Fuel Generator Set Operating on Diesel Fuel Direct Injected and Hydrous Ethanol Fumigation at Different Loads

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