利用可调谐吸收光谱技术的柴油机排放温度测试研究 -

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利用可调谐吸收光谱技术的柴油机排放温度测试研究

doi:10.3788/CO.20201302.0281

哈尔滨工程大学动力与能源工程学院, 黑龙江哈尔滨 150001

基金项目:

国家自然科学基金资助项目61405046

国家自然科学基金资助项目51709059

黑龙江自然科学基金资助项目51305089

船用低速发动机项目Ⅰ期CDGC01-KT03-BG-011

详细信息

作者简介:
袁志国(1975-), 男, 山东禹城人, 硕士, 高级实验师, 1999年、2007年、2019年于哈尔滨工程大学分别获得学士、硕士、博士学位, 主要从事柴油机控制、测试技术、故障诊断等方向的研究。E-mail:yuanzhiguo@hrbeu.edu.cn
杨晓涛(1985-), 男, 黑龙江哈尔滨人, 博士, 副教授、硕士生导师, 2007年、2009年于哈尔滨工业大学分别获得学士、硕士学位; 2016年于哈尔滨工程大学获得博士学位, 2017年9月至2018年9月在美国科罗拉多州立大学做访问学者, 主要研究方向包括动力装置光学测试技术, 点火技术, 油膜测试等方向。E-mail:yangxiaotao@hrbeu.edu.cn

中图分类号:TP399;TK311
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出版历程
- 收稿日期:2019-05-10
- 修回日期:2019-06-10
- 刊出日期:2020-04-01

Testing on diesel engine emission temperature using tunable laser absorption spectroscopy technology

College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China

Funds:

National Natural Science Foundation of China61405046

National Natural Science Foundation of China51709059

Natural Science Foundation of Heilongjiang51305089

Marine Low-Speed Engine Project Phase-ICDGC01-KT03-BG-011

More Information

Corresponding author:YANG Xiao-tao,E-mail:yangxiaotao@hrbeu.edu.cn

摘要

摘要:针对D4114B型柴油机排放尾气中的CO ₂气体开展测量研究，计算分析气体的体积分数以及温度。文中以可调谐半导体器吸收光谱（Tunable Diode Laser Absorption Spectroscopy，TDLAS）技术原理为基础，利用MATLAB中SIMULINK库中的各个模块，模拟尾气测量的实际过程。仿真结果显示，在模拟柴油机排放环境下，待测量气体CO ₂的温度仿真相对误差为0.03%。利用船用D4114B型柴油机进行验证实验，在其排气管上增添可视化窗口并安装相应测试系统，利用以半导体为工作介质的可调谐器作为光源，开展尾气排放中CO ₂气体温度的在线测试研究，测试相对误差小于4%。由上述研究结果可知，本文中利用SIMULINK搭建的模型所测得的温度值与实际柴油机尾气排放过程中的温度相差较小，因此，其仿真结果能够对柴油机排气测温提供一定的参考。
- SIMULINK仿真/
- 可调谐吸收光谱/
- 柴油机尾气/
- 排气测量
Abstract:To measure CO ₂gas in the exhaust of the D4114B diesel engine, the volume fraction and temperature of the gas were studied and analyzed. Based on the principles of Tunable Diode Laser Absorption Spectroscopy (TDLAS), the process of exhaust gas measurement was simulated using various modules in the SIMULINK library of MATLAB. Through simulation, the relative temperature error of the CO ₂was 0.03%. The simulation results were verified with a D4114B marine diesel engine. A visualization window was added to its exhaust pipe and a corresponding test system was installed. A tunable laser with a semiconductor as a working medium was used as the laser light source to carry out on-line tests of the CO ₂temperature in the gas emissions. In this study, the relative error of the test was less than 4.0%. It can be seen from the results that the different between the temperature measured by the model built with a SIMULINK and that of the actual diesel exhaust emission is slight. Therefore, the simulation result can be used as a reference for the diesel engine exhaust temperature measurement.
- SIMULINK simulation/
- tunable laser absorption spectroscopy/
- diesel engine emission/
- exhaust temperature measurement

HTML全文

图 1SIMULINK仿真系统模型

Figure 1.SIMULINK simulation system model

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图 2谱线强度S(T)随温度变化曲线图

Figure 2.Spectral line intensity of CO₂molecular as a function of temperature

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图 3谱线强度比R(T)随温度变化趋势图

Figure 3.Spectral line intensity ratio as a function of temperature

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图 4仿真过程图

Figure 4.Simulation process diagram

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图 5CO₂气体吸收率曲线

Figure 5.Absorption rate curves of CO₂gas

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图 6直接测试结构图

Figure 6.Direct test structure diagram

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图 7柴油机排放在线测试现场

Figure 7.Online test site of diesel engine emission

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图 8不同负载功率下的测试结果

Figure 8.Test results of exhaust gas temperature at different load powers

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图 9不同负载功率下的测试结果

Figure 9.Test results under various load powers

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