Investigation on Ignition Delay of Dual Fuel Engine Operating with Methanol Ignited by Pilot Diesel

邹洪波; 王利军; 刘圣华; 李彧

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Investigation on Ignition Delay of Dual Fuel Engine Operating with Methanol Ignited by Pilot Diesel

更新时间：2025-12-08

- Investigation on Ignition Delay of Dual Fuel Engine Operating with Methanol Ignited by Pilot Diesel
- Vol. 41, Issue 7, Pages: 784-787+796(2007)
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK42
- Online First：10 July 2007，
  
  Published：2007
- 稿件说明：
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邹洪波, 王利军, 刘圣华, et al. Investigation on Ignition Delay of Dual Fuel Engine Operating with Methanol Ignited by Pilot Diesel[J]. 2007, 41(7): 784-787+796.
DOI：

邹洪波, 王利军, 刘圣华, et al. Investigation on Ignition Delay of Dual Fuel Engine Operating with Methanol Ignited by Pilot Diesel[J]. 2007, 41(7): 784-787+796. DOI：

摘要

在一台TY1100直喷柴油机进气管上安装一套电控甲醇低压喷射装置

进行了柴油引燃甲醇双燃料发动机着火滞燃期的试验研究.结果表明:随着甲醇质量分数的增加

双燃料发动机压缩过程多变指数呈线性减小

着火滞燃期延长; 与原柴油机相比

发动机燃用双燃料后

在转速为1 600 r/min、全负荷、甲醇质量分数为62%时

着火滞燃期最大延长约1.5°; 提高进气温度

着火滞燃期缩短

进气温度从20 ℃增加到40 ℃再到60 ℃时

对着火滞燃期的影响逐渐增强; 发动机的转速升高

在所有试验工况下

以时间计的着火滞燃期缩短; 引燃柴油供油定时提前

着火滞燃期延长.

Abstract

A TY1100 direct-injection diesel engine was equipped with an electronic controlled methanol low-pressure injection system. Methanol is injected into the induction port. The premixed mixture of methanol and air is ignited by pilot diesel. The experimental results show that the polytropic index of compression process of dual fuel engine decreases linearly while the ignition delay increases with the increase of the methanol mass fraction. Compared with the conventional diesel engine

the ignition delay increment of the dual fuel engine is about 1.5° at a methanol mass fraction of 62%

a speed of 1 600 r/min

and full load. With the elevation of the intake charge temperature from 20 ℃ to 40 ℃ and then to 60 ℃

the ignition delay of dual fuel engine decreases and is more obvious at high temperature. Moreover

with the increase of engine speed

the ignition delay of the dual fuel engine by time scale(ms)decreases clearly at all engine operating conditions. However

the ignition delay of the dual fuel engine increases remarkably by advancing the delivery timing of pilot diesel

especially at light engine loads.

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references

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