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    <title>UTas ePrints - Real time model for oxides of nitrogen emissions from a slow speed marine diesel</title>
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<meta content="Real time model for oxides of
nitrogen emissions from a slow speed
marine diesel" name="eprints.title" />
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<meta content="A thermodynamic model is presented for predicting oxides of nitrogen (NOx) emissions
from slow speed marine diesel engines. The model is zero-dimensional, uses chemical
kinetics for NOx formation in multiple burnt gas zones, and runs in real time on a standard
PC. The mean fuel/air mixture strength at which NOx forms and the rate of dilution of the
burnt gas by unburnt air, are adjustable. Two MAN B&amp;W IMO NOx-compliant slow speed
diesels are modelled. Effects such as variations in fuel spray interaction with load are
accounted for in the calibration of the model. The effect of dilution rate and equivalence
ratio on NOx formation is studied. It is shown that, under certain conditions, there is a
critical burnt gas dilution rate which maximises NOx. The model responds adequately to
changes in engine load and to NOx control measures such as water injection, injection
timing retard, exhaust gas recirculation and humidification." name="eprints.abstract" />
<meta content="2003" name="eprints.date" />
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<meta content="Journal of Marine Engineering and Technology" name="eprints.publication" />
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<meta content="1. Corbett, JJ, and Fischbeck, P. Emissions from Ships. Science.
Vol 298: pp 823-824 (1997).
2. IMO, Protocol of 1997 to amend Marpol 73/78, Annex VI of
Marpol 73/78 Regulations for the Prevention of Air Pollution from Ships
and NOx Technical Code. (1998).
3. Goldsworthy, L, Jung Byung-Gun, Niekamp, P, and Earl,
S. Development of the Australian Maritime College PC Based Machinery
Space Simulator. MARTECH 2002 Conference Proceedings,
Singapore (2002).
4. Dec, JE, and Canaan, RE. PLIF Imaging of NO Formation in
a DI Diesel Engine. SAE 980147 (1998).
5. Zabetta, EC, and Kilpinen, P. Improved NOx Submodel for
In-Cylinder CFD Simulation of Low- and Medium- Speed Compression
Ignition Engines. Energy and Fuels. Vol 15(6): pp 1425-1433
(2001).
6. Paro, D. Development of the Sustainable Engine. 23rd CIMAC
Congress (2001).
7. Tree, DR, and Cooley, WB. A Comparison and Model of
NOx Formation for Diesel Fuel and Diethyl Ether. SAE 2001-01-
0654 (2001).
8. Ahmad T, and Plee, L.Application of Flame Temperature
Correlations to Emissions from a Direct-Injection Diesel Engine. SAE
831734 (1983).
9. Dodge, LG, Leone, DM, Naegeli, DW, Dickey, DW, and
Swenson, KR. A PC Based Model for Predicting NOx Reductions in
Diesel Engines. SAE 962060 (1996).
10. Goldsworthy LC. Simulating Primary Control Measures for
Oxides of Nitrogen Emissions in a Slow Speed Marine Diesel Engine.
Sea Australia 2000 Conference Proceedings, Sydney (2000).
11. Easley, WE, Mellor, AM, and Plee, SL. NO Formation and
Decomposition Models for DI Diesel Engines. SAE. Vol 582 (2001).
12. Lavoie, GA, Heywood, JB, and Keck, JC. Experimental and
Theoretical Study of Nitric Oxide Formation in Internal Combustion
Engines. Combustion Science and Technology. Vol 1: pp 313-326
(1970).
13. Heider, G, Woschni, G, and Zeilinger, K. Two-Zone Calculation
Model for the Prediction of NO Emissions from Diesel Engines.
MTZ. Vol 59(11): pp 770-775 (1998).
14. Weisser, G. Modelling of Combustion and Nitric Oxide Formation
for Medium-Speed DI Diesel Engines: A Comparison of Zeroand
Three-Dimensional Approaches, Swiss Federal Institute of Technology:
Zurich (2001).
15. Strehlow, RA. Combustion Fundamentals. McGraw-Hill
(1984).
16. Rodatz, P, Weisser, G, and Tanner, FX. Assessment of CFD
Methods for Large Diesel engines with a Common Rail Injection System.
SAE 2000-01-0948 (2000).
17. Goldsworthy, L. Reduced Kinetics Schemes for Calculation
of Oxides of Nitrogen Emissions from a Slow Speed Marine Diesel.
Energy and Fuels (American Chemical Society). submitted
(2002).
18. Zabetta, EC, Kilpinen, P, Hupa, M, Stahl, K, Leppalahati,
J, and Nieminen, J. Kinetic Modelling Study on the Potential of Staged
Combustion in Gas Turbines for the Reduction of Nitrogen Oxide
Emissions from Biomass IGCC Plants. Energy and Fuels. Vol 14: pp
751-761 (2000).
19. Miller, JA, and Bowman, CT. Mechanism and Modelling of
Nitrogen Chemistry in Combustion. Prog. Energy Combust. Sci. Vol
15: pp 287-338 (1989).
20. Easley,WE, Mellor, AM, and Plee, SL. NO Formation and
Decomposition Models for DI Diesel Engines. SAE 2000-01-0582
(2000).
21. Holtbecker, R, and Geist, M. Emissions Technology, Sulzer
RTA Series, Exhaust Emissions Reduction Technology for Sulzer Marine
Diesel Engines, Wartsila NSD (1998).
22. Bazari, Z. A DI Diesel Combustion and Emission Predictive
Capability for Use in Cycle Simulation. SAE 920462 (1992).
23.MAN B&amp;W, Super-VIT Fuel Pumps: Adjustment and Maintenance,
(1987).
24. Tanner, FX, Brunner, M, and Weisser, G. A Computational
Investigation of Water Injection Strategies for Nitric Oxide reduction in
Large-Bore DI Diesel Engines. SAE 2001-01-1069 (2001).
25. Borman, GL, and Ragland, KW. Combustion Engineering.
WCB/McGraw-Hill (1998).
26. Henningsen, S. MAN B&amp;W, Pers Comm, MAN B&amp;W
(2002)." name="eprints.referencetext" />
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from slow speed marine diesel engines. The model is zero-dimensional, uses chemical
kinetics for NOx formation in multiple burnt gas zones, and runs in real time on a standard
PC. The mean fuel/air mixture strength at which NOx forms and the rate of dilution of the
burnt gas by unburnt air, are adjustable. Two MAN B&amp;W IMO NOx-compliant slow speed
diesels are modelled. Effects such as variations in fuel spray interaction with load are
accounted for in the calibration of the model. The effect of dilution rate and equivalence
ratio on NOx formation is studied. It is shown that, under certain conditions, there is a
critical burnt gas dilution rate which maximises NOx. The model responds adequately to
changes in engine load and to NOx control measures such as water injection, injection
timing retard, exhaust gas recirculation and humidification." name="DC.description" />
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    <h1 class="ep_tm_pagetitle">Real time model for oxides of nitrogen emissions from a slow speed marine diesel</h1>
    <p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Goldsworthy, L</span> (2003) <xhtml:em>Real time model for oxides of nitrogen emissions from a slow speed marine diesel.</xhtml:em> Journal of Marine Engineering and Technology, A2 . pp. 3-12. ISSN 1476-1548</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a onmouseover="EPJS_ShowPreview( event, 'doc_preview_3386' );" href="http://eprints.utas.edu.au/2578/1/47113_JMET_2003.pdf" onmouseout="EPJS_HidePreview( event, 'doc_preview_3386' );"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a><div class="ep_preview" id="doc_preview_3386"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/2578/thumbnails/1/preview.png" class="ep_preview_image" border="0" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/2578/1/47113_JMET_2003.pdf"><span class="ep_document_citation">PDF</span></a> - Requires a PDF viewer<br />411Kb</td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://www.imarest.org/proceedings/detail.asp?ID=12">http://www.imarest.org/proceedings/detail.asp?ID=12</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">A thermodynamic model is presented for predicting oxides of nitrogen (NOx) emissions&#13;
from slow speed marine diesel engines. The model is zero-dimensional, uses chemical&#13;
kinetics for NOx formation in multiple burnt gas zones, and runs in real time on a standard&#13;
PC. The mean fuel/air mixture strength at which NOx forms and the rate of dilution of the&#13;
burnt gas by unburnt air, are adjustable. Two MAN B&amp;W IMO NOx-compliant slow speed&#13;
diesels are modelled. Effects such as variations in fuel spray interaction with load are&#13;
accounted for in the calibration of the model. The effect of dilution rate and equivalence&#13;
ratio on NOx formation is studied. It is shown that, under certain conditions, there is a&#13;
critical burnt gas dilution rate which maximises NOx. The model responds adequately to&#13;
changes in engine load and to NOx control measures such as water injection, injection&#13;
timing retard, exhaust gas recirculation and humidification.</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/290000.html">290000 Engineering and Technology</a><br /><a href="http://eprints.utas.edu.au/view/subjects/291200.html">290000 Engineering and Technology &gt; 291200 Maritime Engineering</a></td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2578</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Scholarly Publications Librarian</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">13 Dec 2007 08:12</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">09 Jan 2008 02:30</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=2578;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&amp;eprintid=2578">item control page</a></p>
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