Experimental Investigation and Central Composite Design Modeling Optimization of Dual Biodiesel Mixture in CI Engine Parameters

IF 1.4 4区化学 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL

Russian Journal of Physical Chemistry B Pub Date : 2025-09-09 DOI:10.1134/S1990793125700666

G. A. C. Jayaseelan, M. A. P. Ashim, S. Srinivas, P. Rajendran

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Abstract

The current study involves the renewed biodiesel derived from non-edible as Juliflora and Candlenut oil into biodiesel using a two-stage trans esterification process. The physiochemical characteristics of biodiesels are analyzed and experiments are carried out employing a single-cylinder four-stroke diesel engine to test several biodiesel blends as B0, B20, B30 and B40 for, performance, and emission characteristics and experimental outcomes were analysed using Central composite modelling optimization. The results indicates the brake specific fuel consumption (0.285 kg/kW h) lower and the Brake thermal efficiency 31.8% higher for the 20% blended diesel. These values are comparable to diesel, with variations of 3.7 and 3.2% respectively. During the experiment, the emission parameters of HC, CO, and smoke were 17.67, 8.2, and 9.45% respectively, lower for CJ20 blend than diesel. Nevertheless, NO_x emission is 4.2% higher than base fuel, while minimal difference and among the lower than other blends. Furthermore, the Central composite design was developed and find the optimal results of a CI engine achieved. Overall results confirm that 20% CJ biodiesel blended diesel is the alternate of the standard diesel.

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双生物柴油混合气CI发动机参数试验研究及中心复合设计建模优化

目前的研究是采用两阶段反式酯化工艺，将不可食用的朱莉花油和香烛油转化为生物柴油。对生物柴油的理化特性进行了分析，并在一台单缸四冲程柴油发动机上对B0、B20、B30和B40几种生物柴油混合物的性能和排放特性进行了测试，并利用Central复合模型优化对实验结果进行了分析。结果表明，20%混合柴油的制动比油耗（0.285 kg/kW h）降低，制动热效率提高31.8%。这些数值与柴油相当，分别有3.7%和3.2%的变化。实验过程中，CJ20混合燃料的HC、CO和smoke排放参数分别为17.67%、8.2和9.45%，均低于柴油。尽管如此，氮氧化物排放量比基础燃料高出4.2%，但差异很小，并且低于其他混合物。在此基础上，进行了中央复合设计，并获得了CI发动机的最佳设计结果。综合结果证实，20% CJ生物柴油混合柴油是标准柴油的替代品。

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来源期刊

Russian Journal of Physical Chemistry B 化学-物理：原子、分子和化学物理

CiteScore

2.20

自引率

71.40%

发文量

106

审稿时长

4-8 weeks

期刊介绍： Russian Journal of Physical Chemistry B: Focus on Physics is a journal that publishes studies in the following areas: elementary physical and chemical processes; structure of chemical compounds, reactivity, effect of external field and environment on chemical transformations; molecular dynamics and molecular organization; dynamics and kinetics of photoand radiation-induced processes; mechanism of chemical reactions in gas and condensed phases and at interfaces; chain and thermal processes of ignition, combustion and detonation in gases, two-phase and condensed systems; shock waves; new physical methods of examining chemical reactions; and biological processes in chemical physics.