Experimental investigation of a turbocharged CRDI diesel engine fueled with Tung oil-diesel-ethanol microemulsion fuel

Qi, Donghui; Yang, Ke; Zhang, D.; Chen, B.; Qiao, Weiyang; Zhang, C.H.

doi:10.1016/j.renene.2017.06.105

Cited by 51 publications

(19 citation statements)

References 39 publications

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“…Biodiesel has higher oxygen content than diesel, which enhances its combustion efficiency, and reduces CO, UHC, and PM but produces greater NO x emissions (approximately 10% more NO x than diesel) [17,18]. Moreover, many researchers tried to improve the fuel performance and emission characteristics of various types of biodiesel by adding 10-20% alkanols (ethanol [19], butanol [20], pentanol [21]) as an oxygenate additive. Microemulsification is another promising biofuel modification technology; it is used to create microemulsion biofuels to reduce viscosity and NO x emissions while achieving a combustion efficiency similar to that of a petroleum-based fuel [22,23].…”

Section: Introductionmentioning

confidence: 99%

Exhaust emissions of a diesel engine using ethanol-in-palm oil/diesel microemulsion-based biofuels

Charoensaeng

Khaodhiar

Sabatini

et al. 2018

Environmental Engineering Research

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The use of palm oil and diesel blended with ethanol, known as a microemulsion biofuel, is gaining attention as an attractive renewable fuel for engines that may serve as a replacement for fossil-based fuels. The microemulsion biofuels can be formulated from the mixture of palm oil and diesel as the oil phase; ethanol as the polar phase; methyl oleate as the surfactant; alkanols as the cosurfactants. This study investigates the influence of the three cosurfactants on fuel consumption and exhaust gas emissions in a direct-injection (DI) diesel engine. The microemulsion biofuels along with neat diesel fuel, palm oil-diesel blends, and biodiesel-diesel blends were tested in a DI diesel engine at two engine loads without engine modification. The formulated microemulsion biofuels increased fuel consumption and gradually reduced the nitrogen oxides (NOx) emissions and exhaust gas temperature; however, there was no significant difference in their carbon monoxide (CO) emissions when compared to those of diesel. Varying the carbon chain length of the cosurfactant demonstrated that the octanol-microemulsion fuel emitted lower CO and NOx emissions than the butanol-and decanol-microemulsion fuels. Thus, the microemulsion biofuels demonstrated competitive advantages as potential fuels for diesel engines because they reduced exhaust emissions.

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Section: Introductionmentioning

confidence: 99%

Exhaust emissions of a diesel engine using ethanol-in-palm oil/diesel microemulsion-based biofuels

Charoensaeng

Khaodhiar

Sabatini

et al. 2018

Environmental Engineering Research

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“…The application of bioethanol in the triple mixtures, encounters difficulties due to its limited solubility in both, vegetable oils and fossil diesel. This has been attempted to be resolved with the addition of surfactants [432][433][434][435][436][437][438]. However, these triple mixtures work very well with neat castor oil because it has a high affinity for ethanol, due to the high ricinoleic acid amount in castor oil (about 90%), and hence mixes in any proportion without any phase separation.…”

Section: Blends Of Straight Vegetable Oils (Svo) With Less Viscous Anmentioning

confidence: 99%

Biodiesel at the Crossroads: A Critical Review

et al. 2019

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The delay in the energy transition, focused in the replacement of fossil diesel with biodiesel, is mainly caused by the need of reducing the costs associated to the transesterification reaction of vegetable oils with methanol. This reaction, on an industrial scale, presents several problems associated with the glycerol generated during the process. The costs to eliminate this glycerol have to be added to the implicit cost of using seed oil as raw material. Recently, several alternative methods to convert vegetable oils into high quality diesel fuels, which avoid the glycerol generation, are being under development, such as Gliperol, DMC-Biod, or Ecodiesel. Besides, there are renewable diesel fuels known as “green diesel”, obtained by several catalytic processes (cracking or pyrolysis, hydrodeoxygenation and hydrotreating) of vegetable oils and which exhibit a lot of similarities with fossil fuels. Likewise, it has also been addressed as a novel strategy, the use of straight vegetable oils in blends with various plant-based sources such as alcohols, vegetable oils, and several organic compounds that are renewable and biodegradable. These plant-based sources are capable of achieving the effective reduction of the viscosity of the blends, allowing their use in combustion ignition engines. The aim of this review is to evaluate the real possibilities that conventional biodiesel has in order to success as the main biofuel for the energy transition, as well as the use of alternative biofuels that can take part in the energy transition in a successful way.

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“…The obtained results were compared with conventional CI engine. The CRDI diesel engine operated with Tung oil-diesel-ethanol blends has been improved engine efficiency and reduced emissions, but slightly NOx increased as compared to diesel (Qi et al, 2017). At 880 bar IOP was operated in the CRDI engine with mahua methyl ester blend showed better combustion performance and reduced HC, CO and smoke emissions (Aalam et al, 2016).…”

Section: Introductionmentioning

confidence: 97%

Effect of Injection Parameters: Injection Timing and Injection Pressure on the Performance, Emission and Combustion Characteristics of CRDI Diesel Engine Operate with Palm Oil Methyl Ester (POME)

Shivashimpi¹,

Banapurmath

Alur³

2019

European Journal of Sustainable Development Research

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This experimental study mainly focused on the investigation of CRDI diesel engine powered with palm oil methyl ester (POME) biodiesel and diesel fuels. The Toroidal Re-entrant combustion chamber shape (TRCC) and 6 holes CRDI injector were selected for experiment. The current research engine operated with constant CR 17.5 and speed 1500 rpm. In the first phase of work, the injection timing (IT) varied from-25 °BTDC to 5 °ATDC with interval of 5 degree during the experiments. The injection time-10 °BTDC has been optimized for higher engine efficiency. In the second phase of work, the injection opening pressure (IOP) has been varied form 600 bar to 1000 bar with increment of 100 bar interval during the experiments. The IOP of 900 bar has been optimized with constant fuel IT-10 °BTDC. Finally, the end results of experiments were reported that combined effects of IT (-10 °BTDC) and IOP (900 bar) enhanced the engine output in terms of brake thermal efficiency (BTE), also minimizing the pollutants using TRCC shape and 6-hole CRDI injector for CRDI diesel engine at 80% load.

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Experimental investigation of a turbocharged CRDI diesel engine fueled with Tung oil-diesel-ethanol microemulsion fuel

Cited by 51 publications

References 39 publications

Exhaust emissions of a diesel engine using ethanol-in-palm oil/diesel microemulsion-based biofuels

Exhaust emissions of a diesel engine using ethanol-in-palm oil/diesel microemulsion-based biofuels

Biodiesel at the Crossroads: A Critical Review

Effect of Injection Parameters: Injection Timing and Injection Pressure on the Performance, Emission and Combustion Characteristics of CRDI Diesel Engine Operate with Palm Oil Methyl Ester (POME)

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