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All Journal International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Indonesian Journal of Industrial Engineering & Management International Journal of Industrial Engineering and Engineering Management Makara Journal of Technology
Rajan, John
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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A Sensitivity Analysis Scheme on Biodiesel Production Parameters from Waste Coconut Oil-Based Biofuel Oke, Sunday Ayoola; Aigbogun, Patrick Itua; Abdul, Ibraheem Adedotun; Badmus, Ismaila; Rajan, John; Jose, Swaminathan; Aderibigbe, Samuel Bolaji
International Journal of Mechanical Engineering Technologies and Applications Vol. 7 No. 2 (2026): July - December 2026
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2026.007.02.10

Abstract

This study conducts a sensitivity analysis on the biofuel production parameters of waste coconut oil-based biodiesel, building on literature experimental data and DEMATEL methodical results, involving criteria such as Sr, Sc, (Sr – Sc), and (Sr + Sc) and the direct relation matrix (X), which was expanded to full fractional design analysis. To evaluate sensitivity, three alternative scenarios, 1, 2, and 3, each containing 25 options and levels 1 to 4, were considered. The blend process operational parameters, including blend ratio of fuel, engine speed, and load, were varied in turn with others held constant while the outcomes of Sr, Sc (Sr – Sc), and (Sr + Sc) were observed. The most important criteria are engine speed and load (36% each in all options) for alternative 1. The highest degree of influence occurs at option 20 (for engine speed) and option 15 (for load) with a corresponding value of 10.09. By value rating, blend ratio is the most important criterion (highest value of 24 at option 25) and no parametric interaction. The trend of influence increases for the blend ratio of fuel, from -1.6 to 1.33. The combined effect of engine speed and load dominates the causal group with 68% (i.e., options 1 to 4, 6 to 9, and 16 to 20), indicating that engine speed and load jointly influence the blend ratio of fuel (effect group). This paper introduces a sensitivity analysis as an approach to enhancing the stability, robustness, and reliability of blending parameters for coconut oil-based biodiesel.
Co-Authors Abdul, Ibraheem Adedotun Adeboye, Busayo Adedeji, Kasali Aderinmoye Adedeji, Wasiu Oyediran Adekoya, Abdulganiyu Adegboyega Adeniran, Mofoluwaso Kehinde Aderibigbe, Samuel Bolaji Adeyemi, Olusola Michael Adeyemi, Samuel Adeolu Adeyinka, Oluwo Agada, Alexander Iwodi Aigbogun, Patrick Itua Ajibade , Ayomide Tolulope Alozie , Nehemiah Sabinus Alozie, Nehemiah Sabinus Ayanladun, Chris Abiodun Badmus, Ismaila Benrajesh, Pandiaraj Emorinken, Samuel Olayinka Fasina, Ebun Francis, Osita Prince Ibitoye, Ayomide Sunday Jose , Swaminathan Jose, Swaminathan Martins, Shedrach Aliakwe Nwankiti , Ugochukwu Sixtus Nwankiti, Ugochukwu Sixtus Odudare, Samson Oluwaseun Odusoro, Salome Ifeoluwa Ogunmola , Bayo Yemisi Ogunmola, Bayo Yemisi Oke, Sunday Ayoola Okwo, Jeremiah Ugo Olaiya, Kabiru Alani Olowu, Joseph Kolawole Oluwo , Adeyinka Oluwo, Adeyinka Onitiri, Modupe Adeoye Oyekeye, Manasseh Olusegun Oyelami, Seun Oyetunji, Elkanah Olaosebikan Ozule, Chukwuka Prosper Raji, Akinwale Olusegun Sawyerr, Babatunde Alade Shokoya, Nurudeen Olatunde Taiwo, Emmanuel Oluwatobi Udoibe, Ndifreke John Umoh, Akwaeno Uduak Yekinni, Adekunle Adetayo