混合草酸酯与柴油共混燃料燃烧及排放特性的试验研究  

Experimental study of the combustion and emission characteristics of diesel fuel blended with the mixed alcohols oxalates

作　　者：高占斌 唐铭沂 毛进 郭伟[3,4] 尹应武 李新举 周亮 胡哲彰 GAO Zhanbin;TANG Mingyi;MAO Jin;GUO Wei;YIN Yingwu;LI Xinju;ZHOU Liang;HU Zhezhang(College of Marine Engineering,Jimei University,Xiamen 361021,China;Fujian Provincial Key Laboratory of Naval Architecture and Ocean Engineering,Xiamen 361021,China;Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China;Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials,Xiamen Institute of Rare Earth Materials,Haixi Institute,Chinese Academy of Sciences,Xiamen 361021,China;College of chemistry and chemical engineering,Jinan University,Jinan 250024,China)

机构地区：[1]集美大学轮机工程学院,福建厦门361021 [2]福建省船舶与海洋工程重点实验室,福建厦门361021 [3]中国科学院福建省物质结构研究所,福建福州350002 [4]中国科学院海西研究所厦门稀土材料研究所稀土光电功能材料重点实验室,福建厦门361021 [5]济南大学化学化工学院,山东济南250024

出　　处：《哈尔滨工程大学学报》2024年第10期1983-1990,共8页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(52171308);省部重点实验室开放课题(嘉庚科函【2022】9号-1);福建省自然科学基金项目(2022J01810,2022J05153);福建省中青年教师教育科研项目(JAT210219).

摘　　要：为了缓解柴油机燃用化石燃料带来的不可再生能源消耗及环境污染问题,本文开发了一种可用于柴油机共混燃烧的新型含氧燃料——混合草酸酯(mMAO)。以TBD234V6型船用柴油机为研究对象,分别配置mMAO体积分数为0%、10%、20%和30%的mMAO/柴油共混燃料,探究共混燃料在不同运行特性下对船用柴油机燃烧及排放特性的影响。试验结果表明:在不同运行特性下,mMAO掺混后改善了燃料的雾化质量,燃烧速度提高,缸内燃烧更充分,使柴油机的缸内最高燃烧压力有不同程度的升高。与纯柴油相比,共混燃料燃烧还可以改善柴油机的经济性。以100%负荷工况为例,相较于M_(0),共混燃料中的M_(20)的缸压峰值略有升高,碳烟和CO排放分别降低了51.22%和25.07%,NO_(x)和HC排放分别增加了5.65%和35.95%;综合考虑柴油机的燃烧、经济及排放性能,M_(20)可以作为该负荷下的最佳掺混比。该研究为mMAO作为柴油替代燃料在船舶发动机领域的推广应用潜力的评估提供了理论依据。In order to alleviate the environmental pollution caused by the development of a new type of diesel fuel mixed with the mixed alcohols oxalates(mMAO),which can be used to burn diesel engines without oxygen.The mMAO/diesel blended fuel with 0%,10%,20%and 30%volume fraction of mMAO was used for the TBD234V6 marine diesel engine to investigate the effect of blended fuel on the combustion and emission characteristics of the marine diesel engine with different operating characteristics.The experimental results show that under different operating characteristics,the mixing of mMAO improves the atomization quality of fuel,improves the combustion speed,and the combustion in cylinder is more sufficient,so that the maximum combustion pressure in cylinder of diesel engine increases in varying degrees.In addition,compared with pure diesel,blended fuel combustion can also improve the economy of diesel engine.Taking 100%load condition as an example,the peak cylinder pressure of M_(20) in blended fuel is slightly higher than that of M_(0),the soot and CO emissions are reduced by 51.22%and 25.07%respectively,and the NO_(x) and HC emissions are increased by 5.65%and 35.95%respectively;considering the combustion,economy and emission performance of diesel engine,M_(20) can be used as the best mixing ratio under this load.This study provides a theoretical basis for the evaluation of the popularization and application potential of mMAO as a diesel alternative fuel in the field of marine engines.

关 键 词：船用柴油机 含氧燃料 混合草酸酯 理化性质 运行特性 燃烧 排放 试验 

分 类 号：TK428.9[动力工程及工程热物理—动力机械及工程]