Performance, emissions and carbon deposit characteristics of diesel engine operating on emulsion fuel

Hasannuddin, A.K.; Yahya, Wira Jazair; Sarah, S.; Ithnin, Ahmad Muhsin; Syahrullail, S.; Sugeng, Dhani Avianto; Razak, I.F.A.; Fatah, Abdul Yasser Abd; Aqma, Wan Syaidatul; Rahman, A.H.A.; Ramlan, Nur Atiqah

doi:10.1016/j.energy.2017.10.044

Cited by 67 publications

(20 citation statements)

References 50 publications

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“…Similarly, NadeemRangkuti [15] reported that the water in biodiesel facilitates extra micro-explosions that enhance the mixing process. This reduction agrees with the results of [41] and [18] for low load. However, the results disagree with [42] and the finding of [18] that the CO level at high engine load was insignificant.…”

Section: Carbone Monoxidesupporting

confidence: 92%

The Influence of Emulsified Water Fuel Containing Fresh Water Microalgae on Diesel Engine Performance, Combustion, Vibration and Emission

et al. 2019

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Microalgae is considered as an excellent potential renewable source of fuel in many forms including powder or slurry. A high percentage of emulsified water in the fuel is reported to reduce diesel engines’ emissions such as NOx, but that will compromise the engine output power. Using microalgae powder as an additive to enhance the emulsified water fuel heating value is the main objective of this work. Diesel engine combustion, vibration, performance and emissions were evaluated for pure cottonseed biodiesel (CS-B100), emulsified water 20% (vol.) in cottonseed biodiesel (CSB-E20) and emulsified water 20% (vol.) containing Fresh Water Microalgae Chlorella Vulgaris (FWM-CV) in cottonseed biodiesel (CSB-ME20). The emulsified water fuels showed a reduction in in-cylinder pressure, vibration, brake power, torque, exhaust gas temperature, CO2 and NOx, while BSFC and O2 were higher than the pure biodiesel (CS-B100). CSB-ME20 produced higher power and torque than CSB-E20 due to the presence of microalgae in the fuel that increased the energy content of the fuel.

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Section: Carbone Monoxidesupporting

confidence: 92%

The Influence of Emulsified Water Fuel Containing Fresh Water Microalgae on Diesel Engine Performance, Combustion, Vibration and Emission

et al. 2019

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“…The results given in other works [11][12][13][14] show that the use of WFEs in low-speed diesel engines helps to reduce NOx twice, and, in high-speed diesel engines, 5-6 times. The greatest effect is achieved under partial loads.…”

Section: Introductionmentioning

confidence: 90%

“…The greatest effect is achieved under partial loads. According to References [12,[14][15][16][17], the influence of WFEs on the emission of solid particles has been observed. There was a two-fold reduction in particulate emissions in exhaust gas when working on WFEs (30% water).…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Mass Composition of Water-Fuel Emulsion on Ecological Characteristics of a Diesel Engine

et al. 2019

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The influence of the mass composition of a water–fuel emulsion on the ecological characteristics of a diesel engine was evaluated. Research was performed on the diesel engine MMZ D-245.10 (4-cylinder, D = 110 mm, S = 125 mm) fueled with an emulsion having a water content of 10, 20, and 30% by weight. A noticeable drop of nitrogen oxide emissions with a growth of the mass fraction of water in the emulsion was revealed, which is a consequence of a decrease in the cycle’s average temperature. During research into engine operation using emulsions, its structure-borne noise was evaluated. For all engine operation modes investigated, the lowest noise level was achieved when the engine was running on diesel fuel (DF), and the highest when an emulsion consisting of 70% DF and 30% water was used.

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“…Much smaller liquid droplets will be formed to increase the surface to volume (S/V) ratio of the atomized diesel emulsion so that the total contacting area and micro-explosion frequency between atomized liquid fuel and surrounding air are greatly raised [8]. Higher combustion efficiency might therefore result in [9]. Nanoemulsions with an average droplet size of dispersed phase lower than 1000 nm could also be produced after adding an adequate type and quantity of surfactant mixture [10].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Engine Performance between Nano- and Microemulsions of Solketal Droplets Dispersed in Diesel Assisted by Microwave Irradiation

Lin

2019

Molecules

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As a derivative product of bio-glycerol, this study first uses solketal as a combustion improver for enhancing diesel engine characteristics. The emulsions of nanometer- and micrometer-sized droplets of solketal, which disperse evenly in the ultra-low sulfur diesel (ULSD), are formed by the effects of microwave irradiation. The performance of diesel engine fueled with the nanoemulsion of ULSD with scattered solketal droplets is analyzed and compared to that with the microemulsion. The experimental results show that the nanoemulsions can form when over 15 wt. % surfactant mixtures of Span 80 and Tween 80 and less than 5 wt. % solketal are mixed and emulsified with the remaining ULSD content, which acts as the continuous phase of the emulsions. The nanoemulsions are observed to have significantly lower brake-specific fuel consumption (bsfc) and higher fuel conversion efficiency and exhaust gas temperature than those of the microemulsions and the neat ULSD. However, the bsfc of the nanoemulsions increases with greater engine speed and gradually approaches those of the latter two test fuels. In addition, the dispersed solketal droplet sizes are mostly concentrated around 127 nm with peak intensity of 12.65% in the nanoemulsions. The microwave-assisted formation used in this study is found to successfully produce the nanoemulsions in which all of the dispersed droplet sizes are much smaller than 1000 nm.

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Performance, emissions and carbon deposit characteristics of diesel engine operating on emulsion fuel

Cited by 67 publications

References 50 publications

The Influence of Emulsified Water Fuel Containing Fresh Water Microalgae on Diesel Engine Performance, Combustion, Vibration and Emission

The Influence of Emulsified Water Fuel Containing Fresh Water Microalgae on Diesel Engine Performance, Combustion, Vibration and Emission

The Influence of Mass Composition of Water-Fuel Emulsion on Ecological Characteristics of a Diesel Engine

Comparison of Engine Performance between Nano- and Microemulsions of Solketal Droplets Dispersed in Diesel Assisted by Microwave Irradiation

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