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[1]杨晨曦,才正,林航,等.掺烧不同比例乙醚对船用柴油机燃烧和排放性能的影响[J].集美大学学报(自然科学版),2023,28(6):534-540.
　YANG Chenxi,CAI Zheng,LIN Hang,et al.Effect of Blending Different Proportions of Ether on the Performance of Combustion and Emission of Marine Diesel Engines[J].Journal of Jimei University,2023,28(6):534-540.
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掺烧不同比例乙醚对船用柴油机燃烧和排放性能的影响(PDF)
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《集美大学学报（自然科学版）》[ISSN:1007-7405/CN:35-1186/N]

卷:
第28卷
期数:
2023年第6期
页码:
534-540
栏目:
船舶与机械工程
出版日期:
2023-11-28

文章信息/Info

Title:
Effect of Blending Different Proportions of Ether on the Performance of Combustion and Emission of Marine Diesel Engines
作者:
杨晨曦1; 才正1; 林航2; 王奇伟1; 李品芳1; 3; 范金宇1; 3; 黄加亮1; 3
1.集美大学轮机工程学院，福建 厦门 361021；2.泉州海洋职业学院，福建 泉州 362700；3.福建省船舶与海洋工程重点实验室，福建 厦门 361021
Author(s):
YANG Chenxi1; CAI Zheng1; LIN Hang2; WANG Qiwei1; LI Pinfang1; 3; FAN Jinyu1; 3; HUANG Jialiang1; 3
1.School of Marine Engineering,Jimei University,Xiamen 361021,China;2.Quanzhou Ocean Institute,Quanzhou 362700,China; 3.Fujian Provincial Key Laboratory of Naval Architecture and Ocean Engineering,Xiamen 361021,China
关键词:
船用中速柴油机; 柴油-乙醚混合燃料; 燃烧及排放特性; AVL_FIRE仿真软件
Keywords:
marine medium-speed engine; diesel-ether blend fuel; combustion and emission characteristics; AVL_FIRE simulation software
分类号:
-
DOI:
-
文献标志码:
A
摘要:
为研究掺烧不同比例的乙醚对柴油机燃烧及排放特性的影响，以4190ZLC-2型船用中速机为研究对象，利用 AVL_FIRE 仿真软件构建燃烧室高压循环模型，在全负荷工况下对比实测与仿真缸压和放热率曲线，验证模型的准确性。在全负荷工况下，通过仿真模拟实验，在柴油中分别掺混体积分数为0%、5%、10%、15% 的4种比例的乙醚，研究其对柴油机燃烧和排放特性的影响。结果表明：与燃烧纯柴油相比，使用柴油乙醚混合燃料,缸内最大爆发压力和缸内最高温度均有所下降，对应的曲轴转角也稍有延后。增加乙醚的掺混比例，CO和NO的排放量均呈现降低趋势，碳烟排放略有增加。在反应过程中，乙醚加入延长了混合燃料的滞燃期，油气混合更加充分，放热过程稳定，提升柴油机的稳定性。当乙醚掺混体积分数为15%时，NO排放量较原机降低12.7%，CO排放量降低7.8%，碳烟排放量增大10.7%。
Abstract:
In order to study the effects of blending different proportions of ether on the combustion and emission characteristics of diesel engines,the AVL_FIRE simulation software was used to construct a high-pressure cycle model of the combustion chamber with the 4190ZLC-2 medium-speed marine engine as the research object,and the cylinder pressure and exothermic rate curves of the measured and simulated models were compared under the full-load condition to validate the accuracy of the model.Under full load conditions,four proportions of ether with volume fractions of 0,5%,10% and 15% were blended in diesel fuel to study the effects on the combustion and emission characteristics of the diesel engine via simulation experiments.The results showed that,the use of diesel-ether blends resulted in a decrease in maximum in-cylinder burst pressure and maximum in-cylinder temperature，and a slight delay in the corresponding crank angle compared to those from pure diesel fuel.By increasing the proportion of ether blending,the CO and NO emissions tend to decrease,while the carbon smoke emissions increase slightly.During the reaction process,ether addition prolongs the stagnation period of the mixed fuel,the oil and gas mixing is more adequate,the exothermic process is stable,and the stability of the diesel engine is enhanced.Results also show that,when the ether blending ratio was 15%,the NO emission decreases by 12.7%,the CO emission decreases by 7.8%，and the carbon smoke emission increases by 10.7% compared to the original engine.

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更新日期/Last Update: 2024-02-29