Experimental and Simulation of Diesel Engine Fueled with Biodiesel with Variations in Heat Loss Model

Daniel Romeo Kamta Legue, Zacharie Merlin Ayissi, Mahamat Hassane Babikir, Marcel Obounou and Henri Paul Ekobena Fouda
Additional contact information
Daniel Romeo Kamta Legue: Department of Physics, Energy—Electrical and Electronic Systems, University of Yaounde 1, Yaoundé P.O. Box 812, Cameroon
Zacharie Merlin Ayissi: Laboratory E3M, University of Douala, Douala P.O. Box 2701, Cameroon
Mahamat Hassane Babikir: Department of Physics, Energy—Electrical and Electronic Systems, University of Yaounde 1, Yaoundé P.O. Box 812, Cameroon
Marcel Obounou: Department of Physics, Energy—Electrical and Electronic Systems, University of Yaounde 1, Yaoundé P.O. Box 812, Cameroon
Henri Paul Ekobena Fouda: Department of Physics, Energy—Electrical and Electronic Systems, University of Yaounde 1, Yaoundé P.O. Box 812, Cameroon

Energies, 2021, vol. 14, issue 6, 1-17

Abstract: This study presents an experimental investigation and thermodynamic 0D modeling of the combustion of a compression-ignition engine, fueled by an alternative fuel based on neem biodiesel (B100) as well as conventional diesel (D100). The study highlights the effects of the engine load at 50%, 75% and 100% and the influence of the heat loss models proposed by Woschni, Eichelberg and Hohenberg on the variation in the cylinder pressure. The study shows that the heat loss through the cylinder wall is more pronounced during diffusion combustion regardless of the nature of the fuels tested and the load range required. The cylinder pressures when using B100 estimated at 89 bars are relatively higher than when using D100, about 3.3% greater under the same experimental conditions. It is also observed that the problem of the high pressure associated with the use of biodiesels in engines can be solved by optimizing the ignition delay. The net heat release rate remains roughly the same when using D100 and B100 at 100% load. At low loads, the D100 heat release rate is higher than B100. The investigation shows how wall heat losses are more pronounced in the diffusion combustion phase, relative to the premix phase, by presenting variations in the curves.

Keywords: biodiesel; load; heat loss; cylinder pressure; heat release rate; python (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: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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