Browse > Article
http://dx.doi.org/10.5916/jkosme.2015.39.4.387

A Study of the characteristics of NOx measurement and analysis methods of the SCR system for ships  

Kim, Sung-Yoon (Department of Atmospheric Environment, Korea Marine Equipment Research Institute)
Lee, Young-Ho (Department of Mechanical Engineering, Korea Marine And Ocean University)
Kim, Min (Department of Atmospheric Environment, Korea Marine Equipment Research Institute)
Park, Sam-Sik (Test and Research Bu, NANO)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.39, no.4, 2015 , pp. 387-392 More about this Journal
Abstract
A method for measuring and analyzing the $NO_x$ in ships is described in $NO_x$ Technical Code 2008. The analysis device, as required by the Code, has been to use a Chemi-luminescence detection method or Heated Chemi-luminescence detection. on the other hand, selective catalytic reduction using $NH_3$ as a reducing agent has an interference effect on the analyzer, and causes measurement error. In this study, the Chemi-luminescence detection method was examined according to how it affects the concentration of $O_2$, CO, $SO_2$, $NH_3$. Fourier transform infrared spectrometry analysis equipment and measurement methods were compared. In order to confirm the effect of the physical interference of the measuring device, it was confirmed by decomposing a measuring device. Consequently, white precipitate and moisture were generated inside the chemiluminescence detection system and I found that affecting interference. The influence of interference highlights the need to consider the minimized $NO_x$ measurement method.
Keywords
Selective catalytic reduction; Ammonia; $NO_x$; Fourier transform infrared spectrometry; Chemi-luminescence detection;
Citations & Related Records
연도 인용수 순위
  • Reference
1 IMO MEPC 66/21, Report of the marine environment protection committee on its sixty-sixth session, 2014.
2 IMO MEPC 65/4/7, Final report of the Correspondence Group on Assessment of Technological Developments to Implement the Tier III NOx Emission Standards under MARPOL Annex VI, 2013.
3 IMO Res. MEPC 198(62), 2011 Guidelines addressing additional aspects to the NOx technical Code 2008 with regard to particular requirements related to marine diesel engines fitted with Selective Catalytic Reduction (SCR) systems, 2011.
4 IMO, NOx Technical Code Appendix 3, 2008.