Iranian Researchers Develop Novel Bio-Nano Emulsion Fuel Based on Biodegradable Nanoparticles to Reduce Exhaust Emissions

Saturday, July 21, 2018 - 14:20

Researchers of Tarbiat Modares University in cooperation with Research Institute of Petroleum Industry have used a combination of diesel-biodiesel-water-biodegradable nanoparticles to optimize fuel consumption, reduce pollutants, and enhance diesel engine performance for first time.

According to an ISCA report, nowadays, energy is the most challenging issue in the world. Although nanotechnology has been promising in offering huge developments in various fields, there are still concerns about the potential threats of nanotechnology products and applications.

Based on the research, carried out by researchers of Tarbiat Modares University and Research Institute of Petroleum Industry, Carbon quantum dot nanoparticles were synthesized through the hydrothermal method using orange peel and were then characterized thoroughly. Water and quantum dot nanoparticles were added to the B15 fuel (diesel fuel containing 15% biodiesel) in various concentrations. Then, engine performance experiments were performed using a single cylinder engine to investigate functional parameters and assess exhaust pollutants.

The obtained results showed that the addition of water and quantum dot nanoparticles to the B15 fuel causes an increase in engine torque and power and decreases the brake specific fuel consumption. This is due to the better mixing of the fuel and air in combustion chamber and provision of more oxygen. It was also revealed that the use of emulsion nanofuels decreases the emission of unburned hydrocarbons and nitrogen oxides (NOx).

By employing the B15W5-CQD60 fuel (B15 fuel containing 5% water and 60 ppm carbon quantum dots), diesel engine power at the rate of 2700 rpm was increased by 21% compared with the B15 pure fuel. Furthermore, using the B15W10 fuel (B15 fuel containing 10% water), NOx emission was decreased by 25% on average compared with the B15 pure fuel.

The project was done by PhD. student of Department of Mechanical & Biosystems Engineering, Tarbiat Modares University, Dr. Ehsanollah Ettefaghi, faculty members of Tarbiat Modares University including Dr. Barat Ghobadian, Gholam Hassan Najafi and Dr. Mohammad Hadi Khoshtaghaza, also faculty member of Research Institute of Petroleum Industry, Alimorad Rashidi.

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