This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Quantification of the Formaldehyde Emissions from Different HCCI Engines Running on a Range of Fuels
Technical Paper
2005-01-3724
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In this paper, the formaldehyde emissions from three different types of homogenous charge compression ignition (HCCI) engines are quantified for a range of fuels by means of Fourier Transform Infra Red (FTIR) spectroscopic analysis. The engines types are differentiated in the way the charge is prepared. The characterized engines are; the conventional port fuel injected one, a type that traps residuals by means of a Negative Valve Overlap (NVO) and finally a Direct Injected (DI) one. Fuels ranging from pure n-heptane to iso-octane via diesel, gasoline, PRF80, methanol and ethanol were characterized.
Generally, the amount of formaldehyde found in the exhaust was decreasing with decreasing air/fuel ratio, advanced timing and increasing cycle temperature. It was found that increasing the source of formaldehyde i.e. the ratio of heat released in the cool-flame, brought on higher exhaust contents of formaldehyde. The application of a standard three-way catalyst completely removed formaldehyde from the exhaust stream.
Recommended Content
Technical Paper | Powertrain Development of the 1996 Ford Flexible Fuel Taurus |
Technical Paper | Performance of Late Model Cars with Gasoline-Methanol Fuel |
Technical Paper | The Effects of Fuel Structure on the Autoignition of Fuel-Air Mixtures |
Authors
- Mikael Lemel - Div. of Combustion Engines, Department of Heat and Power Engineering Lund Institute of Technology
- Anders Hultqvist - Div. of Combustion Engines, Department of Heat and Power Engineering Lund Institute of Technology
- Andreas Vressner - Div. of Combustion Engines, Department of Heat and Power Engineering Lund Institute of Technology
- Henrik Nordgren - Div. of Combustion Engines, Department of Heat and Power Engineering Lund Institute of Technology
- Håkan Persson - Div. of Combustion Engines, Department of Heat and Power Engineering Lund Institute of Technology
- Bengt Johansson - Div. of Combustion Engines, Department of Heat and Power Engineering Lund Institute of Technology
Citation
Lemel, M., Hultqvist, A., Vressner, A., Nordgren, H. et al., "Quantification of the Formaldehyde Emissions from Different HCCI Engines Running on a Range of Fuels," SAE Technical Paper 2005-01-3724, 2005, https://doi.org/10.4271/2005-01-3724.Also In
References
- Dec J.E. Sjöberg M. “A Parametric Study of HCCI Combustion - the Source of Emissions at Low Loads and the Effects of GDI Fuel Injection,” SAE Paper 2003-01-0752 2003
- Dec J.E. “A Computational Study of the Effects of Low Fuel Loading and EGR on Heat Release Rates and Combustion Limits in HCCI Engines,” SAE Paper 2002-01-1309 2002
- Sjöberg M. Dec J.E. “Combined Effects of Fuel-type and Engine Speed on Intake Temperature Requirements and Completeness of Bulk-gas for HCCI Combustion,” SAE Paper 2003-01-3173 2003
- Collin R. et al. “Simultaneous OH- and formaldehyde-LIF measurements in an HCCI engine” SAE PAPER 2003-01-3218 2003
- Amnéus P. et al. “Formaldehyde and Hydroxyl Radicals in an HCCI Engine -Calculations and LIF-measurements,”
- Åmand L-E. Tullin C.J. “The Theory Behind FTIR analysis” Dep. Of Energy Conversion Chalmers University of Technology Sweden
- Griffiths, P.R. de Haseth, J.A. “Fourier Transform Infrared Spectroscopy” Chemical Analysis 83 John Wiley & Sons 1986
- Nordgren H. Hultqvist A. Johansson B. “Start of injection strategies for HCCI-combustion” SAE Paper 2004-01-2990 2004