Numerical study of dual fuel engine using proportional natural gas split injection

Frengki Mohamad Felayati, Semin*, Beny Cahyono, Rosli Abu Bakar

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

The progress of the improvement of dual-fuel diesel engines with diesel and natural gas fuel is quite significant. One of them implemented the split injection strategy or can also be referred to as multiple injections. This study analyzed the effects of natural gas split injection on the combustion and emission of modified dual-fuel diesel engines. The study was carried out numerically at 2000 rpm at low to high loads using proportional injection between the first injection (160°BTDC) and the second injection (100°BTDC). Moreover, natural gas substitution is maintained at 50% of the total fuel energy used. The simulation model is calibrated with the appropriate engine size. In addition, the model is validated with the results of experiments on engines with the same parameters. Results from natural gas split injection were compared with single-injection natural gas on different injection timings (160°BTDC and 100°BTDC). The results show that natural gas split injection has a significant effect on different loads. The split injection causes an increase in peak cylinder pressure and heat release rate thereby increasing torque at all loads compared to the single injection. Fuel consumption, CO, and HC in split injection mode are smaller compared to the single injection at 160°BTDC injection timing and greater than 100°BTDC at low loads up to 75% load. However, at high load is greater than all single injection. NOx split injection emissions at high load actually decrease compared to the single injection.

Original languageEnglish
Title of host publicationInnovative Science and Technology in Mechanical Engineering for Industry 4.0
Subtitle of host publicationProceedings of the 4th International Conference on Mechanical Engineering, ICOME 2019
EditorsVivien Djanali, Fahmi Mubarok, Bambang Pramujati, Suwarno
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419346
DOIs
Publication statusPublished - 10 Dec 2019
Event4th International Conference on Mechanical Engineering: Innovative Science and Technology in Mechanical Engineering for Industry 4.0, ICOME 2019 - Yogyakarta, Indonesia
Duration: 28 Aug 201929 Aug 2019

Publication series

NameAIP Conference Proceedings
Volume2187
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Conference on Mechanical Engineering: Innovative Science and Technology in Mechanical Engineering for Industry 4.0, ICOME 2019
Country/TerritoryIndonesia
CityYogyakarta
Period28/08/1929/08/19

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