A Study on Coldflame Propagation Characteristics Applying Amplified Ignition Source to Overcome Landfill gas’s Flame Retardant Limit

Q4 Physics and Astronomy

Defect and Diffusion Forum Pub Date : 2023-06-06 DOI:10.4028/p-55to7c

K. Ryu, Munseok Choe

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Abstract

In this study combustion characteristics were analyzed with LFG, one of the alternative energy sources of SI engines. To overcome the flame retardant limit, which is the shortcoming of LFG, the combustion characteristics were analyzed using the AIS device that was created for this study’s purpose. A static combustion chamber to which AIS can be applied was designed for the experiment that was conducted on the coldflame propagation and combustion characteristics of each LFG fuel using C-type (conventional ignition type) and AIS devices. From the basic LFG experiment, it was identified that as the proportion of carbon dioxide in the fuel increased, the combustibility decreased, and the combustion pressure decreased. When using the AIS device to overcome the flame retardancy of LFG, the combustion pressure was increased by 2 bar even in LFG70 and LFG60, where combustion was actively occurring with the C-type and the combustibility was improved in LFG50 as well. In overall respects, it was judged that the use of AIS could overcome the flame retardancy of LFG and could incorporate LFG into SI engines.

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利用放大点火源克服垃圾填埋气阻燃极限的冷焰传播特性研究

本文对内燃机替代能源之一LFG的燃烧特性进行了分析。为了克服LFG的阻燃极限这一缺点，我们使用为此研究目的而创建的AIS装置对其燃烧特性进行了分析。设计了一个可以应用AIS的静态燃烧室，利用c型(常规点火型)和AIS装置对每种轻油燃料的冷焰传播和燃烧特性进行了实验。从基础LFG实验中可以看出，随着燃料中二氧化碳含量的增加，可燃性降低，燃烧压力降低。当使用AIS装置克服LFG的阻燃性时，即使在LFG70和LFG60中，燃烧压力也增加了2bar，其中c型燃烧积极发生，LFG50的可燃性也得到了改善。综合来看，认为AIS的使用可以克服LFG的阻燃性，可以将LFG纳入SI发动机。

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

Defect and Diffusion Forum Physics and Astronomy-Radiation

CiteScore

1.20

自引率

0.00%

发文量

127

期刊介绍： Defect and Diffusion Forum (formerly Part A of ''''Diffusion and Defect Data'''') is designed for publication of up-to-date scientific research and applied aspects in the area of formation and dissemination of defects in solid materials, including the phenomena of diffusion. In addition to the traditional topic of mass diffusion, the journal is open to papers from the area of heat transfer in solids, liquids and gases, materials and substances. All papers are peer-reviewed and edited. Members of Editorial Boards and Associate Editors are invited to submit papers for publication in “Defect and Diffusion Forum” . Authors retain the right to publish an extended and significantly updated version in another periodical.