Large-scale diesel engine emission control parameters

Arto Sarvi, Ron Zevenhoven*

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)

Abstract

An extensive worldwide investigation and development effort is ongoing in order to make the performance of advanced reciprocal internal combustion engines meet emissions requirements for years to come. The ability to burn different fuel types (such as light and heavy fuel oil, LFO and HFO, but also others) has become a characteristic but also major design target for large-scale medium speed diesel engines. In this study emission tests have been carried out on a large-scale medium-speed supercharged diesel engine (∼1 MW per cylinder) with control parameters compression ratio, SOI and fuel type (LFO and HFO). Emissions of NOx, CO, hydrocarbons (HC) and smoke (FSN) were measured and presented here, and are discussed in relation to the control parameters. Regarding turbocharger influence on emissions the control parameters by-pass and waste-gate are also briefly addressed. The results show that NOx, CO and FSN decrease while HC emissions increase with later SOI (more retardation, more delay) for all loads (25-100%). The influence of compression ratio (CR) for NOx is the inverse of this, with decreasing CR giving increased NOx. Nozzle design (number of holes, holes diameter, injection angle, etc.) is important for emissions control and it seems that less holes and bigger diameter for a certain injection angle gives the best performance. Fuel type is important as well, and generally it can be said that LFO produces less gaseous or particulate emissions. Diesel engine turbocharger by-pass and wastegate valves do affect large-scale diesel engine emissions.

Original languageEnglish
Title of host publicationECOS 2008 - Proceedings of the 21st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
EditorsZygmunt Kolenda, Andrzej Ziebik, Wojciech Stanek
PublisherThe Silesian University of Technology
Pages491-498
Number of pages8
ISBN (Electronic)9788392238140
Publication statusPublished - 2008
MoE publication typeA4 Article in a conference publication
Event21st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2008 - Cracow-Gliwice, Poland
Duration: 24 Jun 200827 Jun 2008

Publication series

NameECOS 2008 - Proceedings of the 21st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems

Conference

Conference21st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2008
CountryPoland
CityCracow-Gliwice
Period24/06/0827/06/08

Keywords

  • Compression ratio
  • Diesel engine
  • Emissions
  • Fuel nozzle
  • Fuel type
  • Injection pressure
  • Large-scale
  • Start of injection
  • Turbocharger

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