An insight into the combustion analysis of low carbon alcohol infused ternary fuel blends operated by varying the compression ratios

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2024-10-09 DOI:10.1016/j.csite.2024.105251

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引用次数: 0

Abstract

To address the growing scarcity and rising costs of fossil fuels, researchers are exploring alternative energy sources that can mimic the conventional fuels. This study focused on ternary fuel blends made from waste fried oil (WFO) biodiesel, methanol, and diesel. To enhance their stability, 10, 20, and 30 ml of n-butanol per litre of ternary blends are added. The blends were tested in a variable compression ratio (VCR) engine under peak load conditions. The experiments are carried out by varying the compression ratio (CR) of the engine from 16:1 to 18:1. The results showed that increasing the CR improved combustion for all fuel blends. Among the ternary blends, B30M20D50 outperformed pure diesel in terms of combustion characteristics. When compared to diesel, B30M20D50 yielded 5.08 %, 5.31 %, and 4.59 % higher P_max at CR 16:1, 17:1, and 18:1, respectively. Under the same conditions, NHRR outperformed diesel by 1.46 %, 3.12 %, and 2.44 %, respectively. While ternary blends with up to 20 % methanol exhibited stable combustion, higher methanol concentrations led to erratic rise in the coefficient of variation. The interdependency analysis revealed a strong correlation between the combustion parameters for the B20M30D50 blend across different compression ratios.

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通过改变压缩比对注入低碳酒精的三元混合燃料的燃烧分析进行深入研究

为解决化石燃料日益稀缺和成本不断上涨的问题，研究人员正在探索可模拟传统燃料的替代能源。这项研究的重点是用废弃油炸生物柴油、甲醇和柴油制成的三元燃料混合物。为了提高其稳定性，每升三元混合燃料中分别添加了 10、20 和 30 毫升正丁醇。在峰值负荷条件下，在可变压缩比（VCR）发动机中对这些混合物进行了测试。实验中，发动机的压缩比（CR）从 16:1 变为 18:1。结果表明，提高压缩比可以改善所有混合燃料的燃烧。在三元混合燃料中，B30M20D50 的燃烧特性优于纯柴油。与柴油相比，在 CR 为 16:1、17:1 和 18:1 时，B30M20D50 的 Pmax 分别高出 5.08%、5.31% 和 4.59%。在相同条件下，NHRR 的性能分别比柴油高 1.46 %、3.12 % 和 2.44 %。甲醇含量不超过 20% 的三元共混物表现出稳定的燃烧，而甲醇浓度越高，变异系数上升越不稳定。相互依存关系分析表明，不同压缩比的 B20M30D50 混合燃料的燃烧参数之间存在很强的相关性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.