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Performance and Emissions Characteristics of Philippine CME-Diesel Blends

[+] Author Affiliations
Edwin N. Quiros

University of the Philippines Diliman, Quezon City, Philippines

Jeffrey James C. Laguitao

AVL/TH, Bangkok, Thailand

Paper No. ES2017-3393, pp. V001T02A008; 8 pages
  • ASME 2017 11th International Conference on Energy Sustainability collocated with the ASME 2017 Power Conference Joint With ICOPE-17, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum
  • ASME 2017 11th International Conference on Energy Sustainability
  • Charlotte, North Carolina, USA, June 26–30, 2017
  • Conference Sponsors: Advanced Energy Systems Division, Solar Energy Division
  • ISBN: 978-0-7918-5759-5
  • Copyright © 2017 by ASME


Deliberations in the Philippines are underway on the shift to 5% (B5) CME-diesel blend from the current B2 blend. In support to said deliberations, a fuel economy and gaseous emissions study of B1–B50 CME-diesel blends was conducted using an in-use Asian utility vehicle running on the Japanese 10–15 Mode drive cycle. Results show that adding CME up to 20% by volume (B20) has a small effect on the heating values, specific fuel consumption (SFC), mileage, and maximum power. Relative to neat diesel, the increase in SFC, and lower mileage and power beyond B20 were attributed to lower heating values at higher blends. CO was practically constant while THC and NOx generally decreased with increasing CME blends. The CO and THC trends were ascribed to overall lean mixtures and increased amount of oxygenated fuel at higher CME blends. The decreasing NOx trend needs further investigation as it seemed contrary to other studies. Based on these results, the shift to B5 would insignificantly affect fuel economy and likely lessen THC and NOx emissions. B20 yielded the most emissions reduction without performance loss.

Copyright © 2017 by ASME
Topics: Diesel , Emissions



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