Improving combustion and emission characteristics of a biogas/biodiesel-powered dual-fuel diesel engine through trade-off analysis of operation parameters using response surface methodology

  • Bhaskor J. Bora
  • , Thanh Dai Tran
  • , Krushna Prasad Shadangi
  • , Prabhakar Sharma
  • , Zafar Said
  • , Pankaj Kalita
  • , Abdulrajak Buradi
  • , Van Nhanh Nguyen
  • , Hakeem Niyas
  • , Minh Tuan Pham
  • , Chau Thanh Nguyen Le
  • , Viet Dung Tran
  • , Xuan Phuong Nguyen

Research output: Contribution to journalArticlepeer-review

75 Citations (Scopus)

Abstract

The present study focused on using dual-fuel such as Mahua oil biodiesel and biogas in a diesel engine to analyze performance and emission by varying compression ratio (CR) and engine loads. Following the experimental step, the response surface approach was used to model-predict, and optimize. The variance analysis was used to create relationship functions between the independent control variables (engine loads and CR) and their dependent response variables (performance and emission indices). A robust model is indicated by a high coefficient of determination value for all outputs (0.8673 – 0.9917). The optimization yielded 15.25% brake thermal efficiency, 326 °C exhaust gas temperature, 2.85 kg/h biogas flow rate, 68.9% liquid fuel replacement, and 44 bar peak cylinder pressure. A trade-off study of engine performance vs. emission at optimal operating settings produced 4.45 vol% CO2, 39 ppm NOx, 90 ppm HC, and 90.17 ppm CO. The validation test in the lab revealed that all of the predicted output was within a 6% error range. This research indicated that dual-fuel might be an excellent choice for improving waste-to-energy prospects, performance, and emissions.

Original languageEnglish
Article number102455
JournalSustainable Energy Technologies and Assessments
Volume53
DOIs
Publication statusPublished - Oct 2022
Externally publishedYes

Keywords

  • Biogas
  • Dual-fuel mode
  • Mahua biodiesel
  • Optimization
  • Response surface methodology

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology

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