Assessment of the Effects of Nanofuels on Combustion and Emissions in a Diesel Engine by Considering Various Types of Nanoparticles in Combination with Biodiesel or Ethanol
Publication: Journal of Energy Engineering
Volume 150, Issue 5
Abstract
Improving the quality of fuel represents an effective solution to address the long-standing issue of engine emissions. This study adopts and carbon nanotubes as additives, which are blended with neat diesel using a physicochemical method to produce nanofuel. The research investigated the combustion and emission performance of a high-pressure common rail four-cylinder engine under various operating conditions, utilizing different types of nanomaterials, nanoparticle sizes, and biofuel substitutes as variables. The outcomes of the study indicate superior performance of the nanofuel compared with neat diesel across all evaluated aspects. Notably, the size of the added particles directly influenced the beneficial enhancements achieved in diesel fuel. Additionally, the nanofuel containing carbon nanotubes demonstrated a greater improvement effect than the one incorporating . Furthermore, when compared with neat diesel, the combustion of carbon nanotubes (CNT) nanofuel at 100% load resulted in a notable 4.0% increase in brake thermal efficiency, coupled with reductions of 3.0% in brake specific fuel consumption and 8.8%, 4.4%, 4.9%, and 9.6% reductions, respectively, for carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (), and smoke emissions. It is noteworthy that the incorporation of biofuel alternatives, such as biodiesel and ethanol, into nanofuels exhibited even further enhanced effects in terms of promoting combustion and reducing emissions. The findings of this study serve as an important reference for selecting suitable nanofuels tailored to meet diverse operational demands of engines.
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Data Availability Statement
All data that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors sincerely appreciate the support provided by the National Natural Science Foundation of China (No. 51876082) and the Jiangsu International Cooperation Project (BZ2022016). The authors have no relevant financial or nonfinancial interests to disclose.
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Information
Published In
Journal of Energy Engineering
Volume 150 • Issue 5 • October 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Dec 26, 2023
Accepted: Mar 8, 2024
Published online: Jul 2, 2024
Published in print: Oct 1, 2024
Discussion open until: Dec 2, 2024
ASCE Technical Topics:
- Air pollution
- Biomass
- Chemical processes
- Chemistry
- Combustion
- Emissions
- Energy engineering
- Energy sources (by type)
- Engineering fundamentals
- Engines
- Environmental engineering
- Equipment and machinery
- Fuels
- Material mechanics
- Materials engineering
- Nanomechanics
- Non-renewable energy
- Petroleum
- Pollution
- Structural engineering
- Structural members
- Structural systems
- Tubes (structure)
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