Issue |
Sci. Tech. Energ. Transition
Volume 79, 2024
|
|
---|---|---|
Article Number | 37 | |
Number of page(s) | 15 | |
DOI | https://doi.org/10.2516/stet/2024031 | |
Published online | 27 June 2024 |
Regular Article
Optimisation of exhaust emissions, vibration, and noise of unmodified diesel engine fuelled with canola biodiesel-diesel blends with natural gas addition by using response surface methodology
1
Adana Alparslan Türkeş Science and Technology University, Department of Energy Systems Engineering, Adana 01250, Turkey
2
Adana Alparslan Türkeş Science and Technology University, Department of Mechanical Engineering, Adana 01250, Turkey
3
Sakarya University, Fire and Combustion Research Center, Serdivan 54187, Turkey
4
Collage of Engineering Technology, University of Doha for Science and Technology, Doha 24449, Qatar
* Corresponding author: erinculudamar@gmail.com
Received:
13
September
2023
Accepted:
30
April
2024
The paper presents methods to determine the optimum input parameters of CNG addition, biodiesel blend ratio, and engine speed to improve engine responses in terms of exhaust emissions, vibration, and noise of CNG-biodiesel-diesel fuelled engines. Box–Behnken based on response surface methodology was used to predict and optimise input parameters. Variance analysis was applied to determine the significant relationship between the input parameters and engine responses. At optimum input parameters (CNG addition = 9.24 L/min, biodiesel blend ratio = 40%, engine speed = 1524.24 rpm), the optimum engine responses of NOx, CO, CO2, O2, engine vibration acceleration, and noise were 93.77 ppm, 438.05 ppm, 1.47%, 18.59%, 37.17 m/s2 and 91.34 dB[A], respectively. In terms of coefficient determination of R2, the values were 99.11%, 99.22%, 99.41%, 99.70%, 98.65%, and 98.60% respectively. The correlation between the optimised result and the engine test result showed an acceptable error limit for NOx, CO, CO2, O2, engine vibration acceleration, and noise as 4.2%, 3.8%, 4.9%, 0.25%, 4.12%, and 0.17%, respectively.
Key words: Optimisation / Biodiesel / Exhaust emissions / Response surface method / Noise / Vibration
© The Author(s), published by EDP Sciences, 2024
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