Effect of Modified Fuel with Nanoparticle and Alcohols Blend on Combustion Behavior

Atelge M. R., Arslan E., Ünalan S., Mohamed Atabanı A., Kahraman N., Akansu S. O.

The 5th International Conference on Alternative Fuels, Energy & Environment (ICAFEE 2021): Future and Challenges, Kayseri, Turkey, 16 - 18 October 2021, pp.552-553

  • Publication Type: Conference Paper / Summary Text
  • City: Kayseri
  • Country: Turkey
  • Page Numbers: pp.552-553
  • Kayseri University Affiliated: Yes


Alcohols such as methanol, ethanol, and butanol are fascinating alternative fuels for internal

combustion engines because of their high-octane number, oxygenated fuel structure, and liquid form. The

toxicity and poor energy density of methanol make it difficult to use in internal combustion engines.

Methanol is currently produced mostly from natural gas or coal by gasification, followed by methanol

synthesis. As a result, biomass-derived ethanol and butanol are better candidates for use in compression

ignition engines. This lignocellulosic biomass can be used production of both ethanol and butanol as a green

pathway. Therefore, ethanol and n-butanol were chosen to blend with diesel for this study.

This study aimed to investigate the effects of blending modified diesel fuel with graphene plates and

alcohols on combustion behavior, performance, and emissions characteristics. In this study, ethanol and nbutanol,

were blended with diesel. The fraction of each alcohol was 10 percent volume basis, and diesel

was 80% (v/v). Moreover, 50 ppm graphene nanoplates (GPs) were mixed with diesel to obtain modified

fuel. Lastly, hydrogen was also fed through the intake manifold as dual fuel mode as 15 g per hour. The

diesel engine was loaded for different conditions as 25, 50, 75, and 100% load for each tested fuel.

The brake thermal efficiency (BTE) of diesel-alcohols fuel increased by 0.5%; likewise, the brake specific

fuel consumption was raised by 5.2% compared to diesel at the full load condition. It is because the fuel

calorific value decreased when the diesel, ethanol, and n-butanol were blended. Furthermore, when

modified fuel with 50 ppm GPs was used, the BTE was improved only 1.1%. However, the remarkable

improvement was obtained to be an 18.6% increase of BTE using modified fuel and alcohols. In the dual

fuel mode, adding H2 was also increased BTE by 19.4% in comparison to diesel fuel.

In the term of emissions, the blended diesel and alcohol fuel was reduced CO and CO2 by 35.9 and 2.3%,

respectively compared to diesel under the full load condition while HC and NO emissions were increased

by 19.6 and 13.8%. However, using modified fuel and alcohol was remarkably decreased CO, HC, and CO2

emission by 32.1, 4.4, and 0.1% according to diesel emissions. In addition, the emission of dual fuel mode

was also decreased by 20.5, 28.3, and 2.8% for CO, HC, and CO2 respectively whereas NO emission was

increased by 13.8% compared to diesel at the full load.All in all, the experimental study revealed that modified fuel showed better combustion behaviors,

performance, and emissions in comparison to diesel fuel. Further, the same trend was observed when

alcohols mixture with modified fuel was used.