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Das CLD 500 basiert auf dem gleichen Messprinzip wie konventionelle CLD‘s ist aber durch eine optimierte Messzelle und kürzeste Gaslaufzeiten und mit einer T90 Zeit von ≤15 ms um ein vielfaches schneller. Die patentierte Messtechnik erlaubt die Messung von NO und NO2 im Rohgas auch bei hohen Temperaturen und variierenden Abgasgegendrücken direkt im Zylinder oder hinter dem Auslassventil. RDE Anwendungen sind optional möglich.



A chemi-luminescence detector (CLD) is the industry standard method of measuring nitric oxide (NO) concentration.

The reaction between NO and O3 (ozone) emits light. This reaction is the basis for the CLD in which the photons produced are detected by a photo multiplier tube (PMT). The CLD output voltage is proportional to NO concentration.

The light-producing reaction is very rapid so careful sample handling is important in a very rapid response instrument. The Cambustion Fast CLD uses a unique sampling system coupled with miniaturised CLD technology to give millisecond response times.

The Cambustion Fast CLD has two remote sampling heads controlled by a Main Control Unit and is capable of simultaneous sampling in two locations.



Title Data type Download File Size Last Updated
FTP cycle 100-205s - catalyst NO conversion efficiency Sample data  100-205(cld).pdf 67.33 KB 19-Aug-2009
FTP cycle 200-305s - effect of lambda fluctuations on NO Sample data  200-305(cld).pdf 105.68 KB 19-Aug-2009
FTP cycle 300-405s - effect of decel fuel shut off on engine out NO Sample data  300-405(cld).pdf 63.96 KB 19-Aug-2009
FTP cycle 400-505s - NO emissions Sample data  400-505(cld).pdf 68.5 KB 19-Aug-2009
Measurement of engine-out NOx for transient SCR urea dosing accuracy Application note  cld02v01.pdf 24.29 KB 24-Feb-2015
Heavy Duty Diesel NOx and EGR control Application note  cld03v01.pdf 19.27 KB 24-Feb-2015
Transient NOx emissions from a Euro 4 GDI vehicle during WLTP Application note  cld04v01.pdf 225.87 KB 08-Oct-2014
FTP cycle start-105s - catalyst NO lightoff Sample data  ftp-0-105s(cld).pdf 128.62 KB 19-Aug-2009
Measurement of EGR delay and its effects on NOx emissions using the NDIR500 and CLD500 Application note  NDIR05v02 EGR delay.pdf 117.45 KB 24-Feb-2015
FTP cycle over 505s - NO emissions Sample data  no catalyst explanation.pdf 128.32 KB 19-Aug-2009



Title Author Links to Journal Date
Experimental Investigation of Cyclic Variability Impacts on Combustion and Emissions of a High-Speed SI Engine Apostolos Karvountzis-Kontakiotis, Leonidas Ntziachristos, Zissis Samaras, Athanasios Dimaratos, Mark Peckham SAE 2015-01-0742 Apr-2015
Fuel Economy of a Multimode Combustion Engine With Three-Way Catalytic Converter Sandro P. Nüesch, Anna G. Stefanopoulou, Li Jiang and Jeff Sterniak J. Dyn. Sys., Meas., Control 137(5), 051007 (May 01, 2015) Dec-2014
Methodology to Evaluate the Fuel Economy of a Multimode Combustion Engine With Three-Way Catalytic Converter Sandro P. Nüesch, Anna G. Stefanopoulou, Li Jiang and Jeffrey Sterniak ASME 2014 Dynamic Systems and Control Conference Oct-2014
Fuel Economy of a Multimode Combustion Engine with Three-Way Catalytic Converter Sandro P. Nüesch, Li Jiang, Jeff Sterniak and Anna G. Stefanopoulou ASME Oct-2014
Temperature effects on emissions of an active thermally controlled spark ignition single-cylinder engine Eric W Hoffmann, John J Moskwa American Control Conference (ACC), 2014 Jun-2014
Investigation of Combustion Phasing Control Strategy During Reactivity Controlled Compression Ignition (RCCI) Multicylinder Engine Load Transitions Yifeng Wu, Reed Hanson and Rolf D. Reitz J. Eng. Gas Turbines Power 136(9), 091511 (Apr 21, 2014) Apr-2014
Periodic rich combustion of a diesel fuelled engine for NOx emissions reduction through engine management system Alimin, A.J., Benjamin, S.F. and Roberts, C.A. CADME 2007, Perlis, Malaysia, Paper 175 Jan-2014
Dynamic Injection Adaptation by Input Shaping for Low NOx Emissions during Transients Donald Selmanaj, Harald Waschl, Michael Schinnerl, Sergio Savaresi, Luigi del Re SAE 2014-01-1161 Jan-2014
Effect of rapeseed methylester blending on diesel passenger car emissions – Part 1: Regulated pollutants, NO/NOx ratio and particulate emissions Georgios Fontaras, Maria Kalogirou, Theodorοs Grigoratos, Panagiotis Pistikopoulos, Zisis Samaras, Kenneth Rose Fuel Available online 31 December 2013 Dec-2013
The effects of unburned hydrocarbon recirculation on ignition and combustion during diesel engine cold starts Yi Cui, Haiyong Peng, Kangyao Deng, Lei Shi Energy, In Press Nov-2013
Optimisation-oriented modelling of the NOx emissions of a Diesel engine Jonas Asprion, Oscar Chinellato, Lino Guzzella Energy Conversion and Management Volume 75, November 2013, Pages 61–73 Nov-2013
Effect of fuel metering on combustion and emissions of a PFI gasoline engine during fast startup under an HEV-like mode S Yu, L Li International Journal of Automotive Technology, Vol 15, No5, pp. 699-708 Sep-2013
Closed Loop NOx Control by Discrete Time Sliding Mode Christoph Rafetzeder, Stephan Stadlbauer, Harald Waschl and Luigi Del Re 2013 European Control Conference (ECC), July 17-19, 2013 Jul-2013
Experimental investigation of the effects of AFR, spark advance and EGR on Nanoparticle Emissions in a PFI SI Engine Ivan Arsie, Silvana Di Iorio, Salvatore Vaccaro Journal of Aerosol Science, in press Jun-2013
NOx Estimation in Diesel Engines via In-Cylinder Pressure Measurement Corno, M.; Waschl, H.; Alberer, D.; Savaresi, S.M. Control Systems Technology, IEEE Transactions on, Volume: PP , Issue: 99 Mar-2013
Methods for controlling combustion of blended biofuels Shaver et al. US 2013/0024094 A1 Jan-2013
A fast and accurate physics-based model for the NOx emissions of Diesel engines Jonas Asprion, Oscar Chinellato, Lino Guzzella Applied Energy, in press Nov-2012
Control-oriented modeling of a three-way catalytic converter with observation of the relative oxygen level profile Pascal Kiwitz, Christopher Onder, Lino Guzzella Journal of Process Control Volume 22, Issue 6, July 2012, Pages 984–994 May-2012
Experimental Characterization of Nanoparticles Emissions in a Port Fuel Injection Spark Ignition Engine Ivan Arsie, Silvana Di Iorio, Salvatore Vaccaro SAE 2011-24-0208 Sep-2011
Development of Di-Air - A New Diesel deNOx System by Adsorbed Intermediate Reductants Yuki Bisaiji, Kohei Yoshida, Mikio Inoue, Kazuhiro Umemoto, Takao Fukuma SAE 2011-01-2089 Aug-2011
Cycle-resolved measurements of in-cylinder constituents during diesel engine transients and insight into their impact on emissions J R Hagena, D N Assanis, Z S Filipi Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering September 2011 Jul-2011
Analysis of Transient HC, CO, NOx and CO2 Emissions from a GDI Engine using Fast Response Gas Analyzers Mark Peckham, Alex Finch, Bruce Campbell SAE 2011-01-1227 Apr-2011
Lean NOx trap study on a light-duty diesel engine using fast-response emission analysers A J Alimin, S F Benjamin, and C A Roberts International Journal of Engine Research June 1, 2009 vol. 10 no. 3 149-164 Apr-2009
Validation of a Cyclic NO Formation Model with Fast NO Measurements Jeffrey K. Ball, Martin J. Bowe, C. Richard Stone, Nick Collings SAE 2001-01-1010 Mar-2001



Download CLD500.pdf