Improving the Properties and Engine Performance of Diesel–Methanol–Nanoparticle Blend Fuels via Optimization of the Emissions and Engine Performance

Abstract

The present paper tries to investigate the fundamental aspects of air pollutants, fuel properties, and engine performance during transient operation of naturally aspirated and turbocharged diesel engines in addition to comparing them to new experimental results using methanol as an oxygenate additive. The additives that can reduce the soot emission are various oxygenate alcohols (methanol, ethanol, and n-butanol). The additives that are used for improvement of the fuel properties (cetane number enhancers) are tertiary additives. Meanwhile, the additives used for increasing the engine performance are nanometallic additives, such as, silica, alumina, cerium, and manganese. This research demonstrates the effect of various additives on the performance of the diesel engine, emission, and diesel fuel properties by different models, to address the optimum and best conditions. This paper shows the effect of different oxygenate additives on the reduction of the soot formation, although this effect was different in the different models adopted. This research also illustrates the effects of tertiary additives and nanometallic additives on the fuel properties and engine performance, respectively, owing to the type of additive (additive name). Moreover, this paper examined the effect of other conditions (engine load, engine speed, and injection timing) on the above-mentioned responses.

Technical and Economic Analysis of Conventional and Supercritical Transesterification for Biofuel Production

“…Afterwards, it moves to the heater and into reactor-101 to carry out cracking reactions. The cracking reactions in the reactor were similar to the aforementioned process reactions, as presented below: methyl ricinoleate methyl undecenate þ di-isopropyl-ketone (4) methyl undecenate methyl caprylate þ propadiene (5) methyl ricinoleate 2-methylenehexanal þ methyl caprylate þ propylene (6) methyl ricinoleate ricinoleic acid þ methane 7methyl ricinoleate methyl linoleate þ water (8) methyl undecenate 1-decanol þ CO 2 (9) methyl ricinoleate 1-dodecanal þ cyclopentylacetic acid (10) The output stream from the reactor entered into heat exchanger-108 after a thermal exchange was conveyed to heat exchanger-109. The temperature of the stream is reduced to 250°C.…”

“…Since fossil fuels have been increasingly consumed and are considered as serious pollutants for the environment within the last 80 years, it is vital to replace them by alternative fuels [1][2][3][4][5]. One method is optimizing the quality of diesel and gasoline fuels by making changes in the formulation [6][7][8][9][10][11][12]. Another solution would be substituting biofuel and biodiesel for fossil fuels [13][14][15].…”

Analysis of the influence of dienitro on co and nox emissions in diesel public transport buses with egr and scr systems

“…However, CO formation occurs when the O2 available during combustion is inadequate (4) to form CO2 [13].…”

Experimental study on the tribological behaviour of CeO2‐diesel blends on the injector body

“…[3][4][5][6] With the development of nanotechnology, the addition of nanomaterials in fuel has become a research hot spot. [7][8][9] Among them, Ce 4+ and Ce 3+ can be transformed into each other(CeO 2 ⇋ Ce 2 O 3 + O 2 ), with the absorption and release of oxygen. CeO 2 has excellent thermal stability and plays a unique role in catalytic combustion chemistry and exhaust gas purification.…”