Enhancement the combustion aspects of a CI engine working with Jatropha biodiesel/decanol/propanol ternary combinations

This article is an attempt to enhance the Jatropha biodiesel properties' by utilizing decanal and propanol as an enhancement additive. The propanol is combined at a different fraction (from 10% to 40% with a step of 10%) to jatropha biodiesel-decanal combinations, which are denoted as J45DP10, J40DP20, J35DP30, and J30DP40, respectively. These fuel combinations are assessed applying thermogravimetric analysis (TGA), and their aspects such as viscosity, cetane number, and density are evaluated corresponding ASTM standards. Then, their combustion and emission characteristics are evaluated, employing a CI engine under numerous loads. The biodiesel is manufactured applying a two-step procedure, and Fourier-transform infrared spectroscopy (FTIR) is applied to assess both raw oil and generated biodiesel. The viscosity of the fuel mixtures is substantially lowered by 2%, 13%, 23%, and 32% for J45DP10, J40DP20, J35DP30, and J30DP40, respectively, in comparison with pure JME. The findings demonstrate that the BTE is improved by 4%, while the bsfc is dropped by 4%, owing to the addition of decanol and propanol. Furthermore, the peak cylinder pressure and heat release rate are also increased by 4% and 4%, respectively. The CO and UHC levels are noticeably dropped by 40% and 50%, respectively, for JME/ propanol/decanol combinations in comparison with pure JME fuel, while NOx intensity is increased by 15%. Finally, it can be inferred that J35D30P is proposed as the best potential combination, which can heighten the overall aspects of engine performance and emissions.