Restrict Toxic Emissions from Internal Combustion Engines to Protect the Environment by Using Diesel Fuel Mixed with Vegetable Oil

Authors

  • Pham Dinh Trung

    Faculty of Information Technology, Yersin University, Da Lat 670000, Vietnam
  • Nghia Mai Duc

    Faculty of Mechanical Engineering, Air Force Officer’s College, Nha Trang 650000, Vietnam
  • Ho Duc Tuan

    Faculty of Transportation Engineering, Nha Trang University, Nha Trang 650000, Vietnam

DOI:

https://doi.org/10.30564/jees.v7i2.7693
Received: 11 November 2024 | Revised: 27 November 2024 | Accepted: 12 December 2024 | Published Online: 22 January 2025

Abstract

For internal combustion engines, engines installed for transport ships, cargo ships, and fishing vessels are mainly diesel engines. The number of engines is increasing due to the development of the maritime and seafood exploitation sectors. Therefore, the high demand for petroleum fuels increases environmental pollution due to engine emissions. Reducing environmental pollution from the combustion of petroleum fuels has become a concern worldwide, especially for internal combustion engines. The exhaust gases from the engine contain harmful substances such as soot and nitrogen oxides (NOx). Fuels with higher carbon content generate more soot when burned. In contrast, biofuels have low carbon and sulfur content and supply ample oxygen, which helps to reduce soot formation. For these reasons, biofuels are encouraged as alternative fuels to petroleum. Vegetable oil is one of the primary raw materials for biofuel production. This study presents a mixture of diesel and vegetable oil utilized as fuel for fishing vessels’ diesel engines. The results of experimental research on a fishing vessel’s 4CHE Yanmar diesel engine when using diesel fuel mixed with coconut oil (B15, 15% coconut oil, and 85% diesel) show that increasing B15 fuel injection pressure by about 10–15% compared with diesel fuel injection pressure reduces the engine’s soot emissions and increases power compared to unadjusted. This solution contributes to reducing environmental pollution from engine emissions.

Keywords:

Vegetable Oil; Fuel Injection Pressure; Soot; NOx; Environment

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How to Cite

Trung Dinh Pham, Mai Duc, N., & Duc Ho, T. (2025). Restrict Toxic Emissions from Internal Combustion Engines to Protect the Environment by Using Diesel Fuel Mixed with Vegetable Oil. Journal of Environmental & Earth Sciences, 7(2), 62–75. https://doi.org/10.30564/jees.v7i2.7693

Issue

Vol. 7 , Iss. 2 (February 2025)

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Article

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Copyright © 2025 Pham Dinh Trung, Nghia Mai Duc, Ho Duc Tuan

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This is an open access article under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License.

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