Theoretical study of the effects of engine parameters on performance and emissions of a pilot ignited natural gas diesel engine

R. G. Papagiannakis, T. C. Zannis, P. N. Kotsiopoulos, E. A. Yfantis, D. T. Hountalas, C. D. Rakopoulos

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

With the increasing concern regarding diesel vehicle emissions and the rising cost of the liquid diesel fuel as well more conventional diesel engines internationally are pursuing the option of conversion to use of natural gas as a supplement for the conventional diesel fuel (Dual Fuel Natural Gas/Diesel Engines). The most common natural gas/diesel operating mode is referred to as the Pilot Ignited Natural Gas Diesel Engine (PINGDE) where most of the engine power output is provided by the gaseous fuel while a pilot amount of the liquid diesel fuel injected near the end of the compression stroke is used only as an ignition source of the gaseous fuel-air mixture. The specific engine operating mode, in comparison with conventional diesel fuel operation, suffers from low brake engine efficiency and high carbon monoxide (CO) emissions. In order to be examined the effect of increased air inlet temperature combined with increased pilot fuel quantity on performance and exhaust emissions of a PINGD engine, a theoretical investigation has been conducted by using a comprehensive two-zone phenomenological model. The main objectives of the present work are to record the variation of the relative impact each one of the above mentioned parameters on performance and exhaust emissions and also to reveal the advantages and disadvantages each one of the proposed method. It becomes more necessary at high engine load conditions where the simultaneous increase of the specific engine parameters may lead in undesirable results about nitric oxide 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
PublisherSilesian University of Technology
Pages525-532
Number of pages8
ISBN (Electronic)9788392238140
Publication statusPublished - 2008
Externally publishedYes
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
Country/TerritoryPoland
CityCracow-Gliwice
Period24/06/0827/06/08

Keywords

  • Combustion
  • Dual fuel natural gas diesel engine
  • Emissions
  • Pilot ignition

Fingerprint

Dive into the research topics of 'Theoretical study of the effects of engine parameters on performance and emissions of a pilot ignited natural gas diesel engine'. Together they form a unique fingerprint.

Cite this