Investigation on the combined effect of the hydrogen premixing and nanoparticle mixed pyrolysed oil of transformer oil waste in engine characteristics

Karthikeyan S., Ravishankar S., Rajaram K., Kumar S. S., Kumar P. S., Sathish T., ...More

International Journal of Hydrogen Energy, vol.73, pp.885-894, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 73
  • Publication Date: 2024
  • Doi Number: 10.1016/j.ijhydene.2024.05.304
  • Journal Name: International Journal of Hydrogen Energy
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Page Numbers: pp.885-894
  • Keywords: Hydrogen, Nanofuel, Nanoparticles, Waste to energy, Waste transformer oil
  • Yıldız Technical University Affiliated: Yes


In the world, the waste of one situation is the perfect requirement for the other situation. The value addition of the waste can produce new products which contribute to different applications. The electrical grid system produced the transformer oil wastes based on their use and capacity. This waste can be converted into useful applications in the CI engine by pyrolysis at 480 °C. This Pyrolysed oil of transformer oil waste (POTOW) is blended with diesel as a 1:3 contribution by volume for improved fuel properties. But it produced lesser performance. Therefore, the nanoparticles of Titanium dioxide and Silicon dioxide are added to the blend to generate the nano fuel. Enhanced performance and emission reduction are tried with 2–6 lpm hydrogen induction with the nano fuel in a 5.2 kW CI engine. Even though nanofuel produced better results, hydrogen induction was used to increase performance with reduced engine emissions further. At full load, 6 lpm hydrogen induction with the nanofuel produced 10.4% higher brake thermal efficiency, nearly 40% drop in CO, 39% drop in the UHC, and 22.22% drop in the smoke emission but 28% higher NOx emission compared to the petroleum diesel. Therefore, this combination is recommended for the CI engine operation with higher performance with reduced emissions and the transformer oil waste reduction in the environment of this application.