Characterization of Biogas as an Alternative Fuel in Micro-Scale Combustion Technology

IF 0.4 Q4 ENGINEERING, MULTIDISCIPLINARY

International Journal of Integrated Engineering Pub Date : 2023-08-28 DOI:10.30880/ijie.2023.15.04.006

Andi Sanata, Imam Sholahuddin, Ahmad Adib Rosyadi, Hendry Y. Nanlohy, Muhammad Dimyati Nashrullah, Ilyas Nugraha Budi Erawan, Santoso Mulyadi, Mochamad E. Ramadhan

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引用次数: 1

Abstract

This study observes the flame characteristics of the biogas in micro/meso-scale (MSC) combustion technology, namely in a cylindrical MSC. For comparison, the fuel and combustor variations were carried out with backward-facing step size (bfs) as the flame holder in the combustor.The bfs are varied by changing the combustor's length of the inlet diameter. However, the size of the outlet diameter of the combustor is always constant to obtain a continuous combustion reaction zone. Biogas/methane (CH4), butane gas (C4H10), and a mixture of biogas-butane are used as fuel, with air as the oxidizing agent. The results showed that the type of fuel, reactant flow velocity, and equivalent ratio that occurred in the fuel variation and the bfs variation of the cylindrical msc influenced the flame characterization. Stable flame forms in the stoichiometric to rich equivalent ratio area and the medium to high reactant velocity area. The result shows that the equivalent ratio (φ) is 1.23 –1.44, the flame stability limit at the combustor ratio of 0.7, and biogas fuel has low flame stability compared to butane and the biogas-butane mixture. Moreover, the flame can be stable on butane fuel in the equivalent ratio (φ) 0.85 –1.43 and (φ) 0.86 –1.19 for the biogas-butane fuel mixture. Furthermore, when the D1/D2 increases, the flame stability of biogas tends to be wider than when the combustor ratio is 0.7, where the equivalent ratio (φ) is 0.98 –1.42. The result also shows that the flame can be stable on butane fuel in the equivalent ratio (φ) 0.71 –1.43, and for the biogas-butane fuel mixture, the flame can be stable in the equivalent ratio (φ) 0.69 –1.32. However, the best characterization of biogas combustion is formed in the variation of biogas treatment by mixing butane gas (biogas-butane). One of the methods used is called with a wider flame stability limit area. More varied flame visualization variations with a more widely distributed flame mode map, flame, and combustor wall temperature. The result shows that the combustor wall temperature of butane is around 225-250 °C, higher than the characterization of biogas combustion around 150°C, where it's without mixing butane gas for the possible test ranges.

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微尺度燃烧技术中沼气替代燃料的特性研究

本研究观察了沼气在微/中尺度(MSC)燃烧技术中的火焰特性，即圆柱形的MSC燃烧技术。为了进行比较，采用后向步长(bfs)作为燃烧室的火焰支架，对燃料和燃烧室的变化进行了研究。通过改变燃烧室入口直径的长度来改变bfs。然而，为了获得连续的燃烧反应区，燃烧室出口直径的大小总是恒定的。沼气/甲烷(CH4)、丁烷气(C4H10)以及沼气-丁烷的混合物被用作燃料，空气作为氧化剂。结果表明，燃料类型、反应物流速、等效比等因素对火焰表征有影响。在化学计量-富当量比区和中高反应物速度区形成稳定火焰。结果表明:燃烧当量比(φ)为1.23 ~ 1.44，燃烧比为0.7时火焰稳定性极限，与丁烷及沼气-丁烷混合气相比，沼气燃料的火焰稳定性较低。沼气-丁烷混合燃料在φ 0.85 ~ 1.43和φ 0.86 ~ 1.19的当量比范围内火焰稳定。当D1/D2增大时，沼气的火焰稳定性趋于比燃烧比为0.7时更宽，其等效比(φ)为0.98 ~ 1.42。丁烷燃料在等效比(φ) 0.71 ~ 1.43范围内火焰稳定，沼气-丁烷混合燃料在等效比(φ) 0.69 ~ 1.32范围内火焰稳定。然而，沼气燃烧的最佳表征是在混合丁烷气(沼气-丁烷)的沼气处理变化中形成的。使用的一种方法被称为具有更宽的火焰稳定极限区域。更多样化的火焰可视化变化与更广泛分布的火焰模式图，火焰和燃烧室壁温度。结果表明，丁烷的燃烧室壁温在225-250℃左右，高于150℃左右的沼气燃烧表征，在150℃左右，在可能的测试范围内不混合丁烷气体。

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

International Journal of Integrated Engineering ENGINEERING, MULTIDISCIPLINARY-

CiteScore

1.40

自引率

0.00%

发文量

期刊介绍： The International Journal of Integrated Engineering (IJIE) is a single blind peer reviewed journal which publishes 3 times a year since 2009. The journal is dedicated to various issues focusing on 3 different fields which are:- Civil and Environmental Engineering. Original contributions for civil and environmental engineering related practices will be publishing under this category and as the nucleus of the journal contents. The journal publishes a wide range of research and application papers which describe laboratory and numerical investigations or report on full scale projects. Electrical and Electronic Engineering. It stands as a international medium for the publication of original papers concerned with the electrical and electronic engineering. The journal aims to present to the international community important results of work in this field, whether in the form of research, development, application or design. Mechanical, Materials and Manufacturing Engineering. It is a platform for the publication and dissemination of original work which contributes to the understanding of the main disciplines underpinning the mechanical, materials and manufacturing engineering. Original contributions giving insight into engineering practices related to mechanical, materials and manufacturing engineering form the core of the journal contents.