International Scientific Journal

Thermal Science - Online First

online first only

Simulation and experimental study of diesel engine emission temperature based on tunable diode laser absorption spectroscopy

Based on the temperature measurement technology of tunable diode laser absorption spectroscopy (TDLAS), the simulation and experimental research on the temperature measurement of CO2 gas emitted by D4114B diesel engine is realized. The light source model, gas chamber model and data detection model were established by using SIMULINK, which is more general numerical simulation tool in MATLAB. Under the simulated diesel engine emission environment, the measured CO2 gas temperature was obtained by model simulation and analyzed. The simulation relative error was 0.077%. The marine D4114B diesel engine was used as the test object, the visual window was reconstructed on the exhaust light path, and an optical path test system was established. The tunable diode laser was used as the detection light source to carry out on-line test research on the CO2 gas temperature in the exhaust gas emission. The relative error was 4.4%. The results show that the model built by SIMULINK can reflect the actual laser modulation effect and CO2 gas absorption. The simulation results have certain reference value for the research of TDLAS temperature measurement system.
PAPER REVISED: 2019-12-09
PAPER ACCEPTED: 2019-12-20
  1. Yang, X. T., "The research on testing technology for the diesel engine emission based on the tunable laser absorption spectroscopy technology," Harbin Engineering University, 2016.
  2. Yao, L., Liu, W. Q. and Liu, J. G., "Research on Open-Path Detection for Atmospheric Trace Gas CO Based on TDLAS," Chin J Las 42(02), 313-320 (2015).
  3. Zhang, C. X., "O2 and CO sensing based on Tunable Diode Laser Absorption Spectroscopy," Zhejiang University, 2016.
  4. Bernd, B., Christoph, P., Michael, L. and Dieter, B., "Tunable Diode Laser Absorption Spectroscopy zur Feuchtebestimmung in organischen Lösungsmitteln," Chemie Ingenieur Technik 86, (2014).
  5. Shu, X. W., Zhang, Y. J. and Kan, R. F., "Research on Temperature Compensation Method for HCl Gas online Detection Based on TDLAS Technology,"Spectrosc Spect Anal 30(05), 1352-1356 (2010).
  6. Werle, P., Slemer, F., Gehrtz, M. and Brauchle, C., "Wideband noise characteristics of a lead-salt diode laser: possibility of quantum noise limited TLAS performance," Applied Optics 28, 1638-1642 (1989).
  7. Spearrin, R. M., Ren, W. and Jeffries, J. B., "Multi-band infrared CO2 absorption sensor for sensitive temperature and species measurements in high-temperature gases," Applied Physics B 116, 855-865 (2014).
  8. Zhang, G. Y., Wang, G. Q., Huang, Y. and Wang, Y. Z., "Reconstruction and simulation of temperature and CO2 concentration in an axisymmetric flame based on TDLAS," Optik 170, (2018).
  9. Gabrysch, M., Corsi, C., Pavone, F. S. and Inguscio, M., "Simultaneous detection of CO and CO2 using a semiconductor DFB diode laser at 1.578 μm," Applied Physics B 65, 75-79 (1997).
  10. Cai, T. D., Gao, G. Z., Wang, M. R. and Wang, G. S., "High-Pressure Measurements of Temperature and CO2 Concentration Using Tunable Diode Lasers at 2 μm," Applied Spectroscopy 70, 474-484 (2016).