Determination of the Optimum Blend Ratio of Diesel, Waste Oil Derived Biodiesel and 1-Pentanol Using the Response Surface Method

Nadir Yilmaz, Alpaslan Atmanli, Matthew J. Hall and Francisco M. Vigil
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Nadir Yilmaz: Department of Mechanical Engineering, Howard University, Washington, DC 20059, USA
Alpaslan Atmanli: Department of Mechanical Engineering, National Defense University, Ankara 06654, Turkey
Matthew J. Hall: Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
Francisco M. Vigil: Los Alamos National Laboratory, Los Alamos, NM 87545, USA

Energies, 2022, vol. 15, issue 14, 1-16

Abstract: Higher alcohols can be included as a third component in biodiesel-diesel mixtures to improve fuel properties and reduce emissions. Determining the optimum concentrations of these fuels according to the purpose of engine use is important both environmentally and economically. In this study, eight different concentrations of diesel (D), waste oil derived biodiesel (WOB), and 1-pentanol (P) ternary mixtures were determined by the design of experimental method (DOE). In order to determine the engine performance and exhaust emission parameters of these fuels, they were tested on a diesel engine with a constant load of 6 kW and a constant engine speed of 1800 rpm. Using the test results obtained, a full quadratic mathematical model with a 95% confidence level was created using the Response Surface Method (RSM) to predict five different output parameters (BSFC, BTE, CO, HC, and NO x ) according to the fuel mixture ratios. The R 2 accuracy values of the outputs were found at the reliability level. According to the criteria that BTE will be maximum and BSFC, CO, HC, and NO x emissions will be minimum, the optimization determined that the fuel mixture 79.09% D-8.33% WOB-12.58% P concentration (DWOBP opt ) will produce the desired result. A low prediction error was obtained with the confirmation test. As a result, it is concluded that the optimized fuel can be an alternative to the commonly accepted B7 blend and can be used safely in diesel engines.

Keywords: waste oil biodiesel; 1-pentanol; response surface methodology; optimization; confirmation; diesel engine (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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