Combustion Characteristics of Biodiesel Fuel Derived from Waste Edible Oil

废弃食用油生物柴油燃料的燃烧特性

• 批准号: 17560754
• 负责人: YOSHIMOTO Yasufumi
• 金额: $ 2.53万
• 依托单位: Niigata Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17560754/
• 关键词: Diesel engine; Alternative fuel; Biodiesel fuel; Fatty acid methyl ester; Injection characteristic; Engine performance; Ignition characteristic; Droplet combustion; 脂肪酸メチル組成; エンジン燃焼特性; 再生可能資源; 原料油種; 燃焼特性; 油滴燃焼; 着火遅れ; 微粒子

This report investigated the influence on diesel injection, engine performance, combustion characteristics, emissions, and other characteristics of combustion of single droplets of neat FAME fuels. The experiments used chemical reagents, methyl oleate (OME, C18:1), methyl Laurate (LME, C12:0), and mixtures of methyl palmitate (PME, C16:0) and OME or LME as the base fuels. Notable results obtained are as follows:(1) The bulk modulus was determined by measurements of the speed of sound under low fuel pressure conditions (>40MPa), and the results showed that the bulk modulus of OME was about 7% higher than gas oil. The delay in injection was examined by measuring the time difference between the start of the pressure rise in the injection pipe and the start of injection. With OME and LME there were shorter injection delays than with ordinary gas oil.(2) Engine experiments were carried out with biodiesel fuels derived from unused rapeseed oil, soybean oil, and palm oil. This elucidated the influence on engine performance, combustion characteristics and emissions of the three kinds of raw materials. Compared with gas oil, the FAME fuels showed similar brake thermal efficiencies at high loads, and the smoke densities were significantly lower under whole load conditions. The ignition characteristics were considerably improved when PME was blended with LME or OME.(3) With a suspended droplet combustion technique, the combustion characteristics of FAME droplets were analyzed with images taken by a high speed video camera. It was found that when PME is blended with OME the ignition delay shortens and the speed of combustion increases. During the combustion process, the formed soot was collected on a glass fiber filter and the mass was weighed by a micro balance. The results showed that the soot formation rate(defined as the mass ratio of soot to droplet) with OME is below 15% of that of gas oil droplets.

本报告研究了纯FAME燃料单液滴对柴油喷射、发动机性能、燃烧特性、排放和其他燃烧特性的影响。实验使用化学试剂、油酸甲酯（OME，C18：1）、月桂酸甲酯（LME，C12：0）以及棕榈酸甲酯（PME，C16：0）与OME或LME的混合物作为基础燃料。得到的显著结果如下：（1）通过测量低燃油压力（> 40 MPa）条件下的声速来确定体积弹性模量，结果表明OME的体积弹性模量比瓦斯油高约7%。通过测量喷射管中压力上升开始与喷射开始之间的时间差来检查喷射延迟。使用OME和LME时，注入延迟比使用普通瓦斯油时短。(2)发动机实验进行了生物柴油燃料来自未使用的菜籽油，大豆油，棕榈油。阐述了三种原料对发动机性能、燃烧特性和排放的影响。与柴油相比，FAME燃料在高负荷下表现出相似的制动热效率，并且在全负荷条件下烟密度显著降低。PME与LME或OME混合后，着火性能得到明显改善。(3)采用悬浮液滴燃烧技术，利用高速摄像机拍摄的图像分析了FAME液滴的燃烧特性。结果表明，当PME与OME混合时，着火延迟期缩短，燃烧速度增加。在燃烧过程中，在玻璃纤维过滤器上收集形成的烟灰，并通过微量天平称量质量。结果表明，OME的碳烟生成速率（定义为碳烟与液滴的质量比）低于柴油液滴的15%。

项目成果

脂肪酸メチルエステル燃料の油滴燃焼特性

脂肪酸甲酯燃料油滴燃烧特性

• 发表时间: 2006
• 作者: Yasufumi Yoshimoto;Kazuki Kaneko;Masayuki Onodera;吉本 康文・小野寺 正幸
• 通讯作者: 吉本 康文・小野寺 正幸

Performance of a Diesel Engine Fueled by Methyl Oleate and the Characteristics of Combustion of Single Droplets of Methyl Oleate

油酸甲酯柴油机性能及油酸甲酯单液滴燃烧特性

• 发表时间: 2006
• 期刊: Proc. of the Int. Conf. on Vehicles Alternative Fuel Systems & Environmental Protection VAFSEP2006
• 作者: Y.Yoshimoto;M.Onodera
• 通讯作者: M.Onodera

Performance of a Diesel Engine Fueled by Methyl Oleate and the Characteristics of Combustion of Single Drophets of Methyl Oleate

油酸甲酯柴油机性能及油酸甲酯单滴燃烧特性

• 发表时间: 2006
• 期刊: Proc. of the Int. Conf. on Vehicles Alternative Fuel Systems & Environmental Protection(VAFSEP 2006)
• 作者: Yasufumi Yoshimoto;Masayuki Onokera
• 通讯作者: Masayuki Onokera

脂肪酸メチルエステルの油滴燃焼特性

脂肪酸甲酯的油滴燃烧特性

• 发表时间: 2006
• 期刊: 日本機械学会講演論文集(北陸信越支部 第43期総会・講演会) No.067-1
• 作者: 吉本 康文;小野寺 正幸
• 通讯作者: 小野寺 正幸

Performance and Emissions of a Diesel Engine Fueled by Biofuels Derived from Different Vegetable Oils

以不同植物油衍生的生物燃料为燃料的柴油机的性能和排放

• 发表时间: 2007
• 作者: Yasufumi Yoshimoto;Kazuki Kaneko;Masayuki Onodera
• 通讯作者: Masayuki Onodera