Modelling the effect of injection pressure on heat release parameters and nitrogen oxides in direct injection diesel engines
Investigation and modelling the effect of injection pressure on heat release parameters and engine-out nitrogen oxides are the main aim of this study. A zero-dimensional and multi-zone cylinder model was developed for estimation of the effect of injection pressure rise on performance parame...
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VINCA Institute of Nuclear Sciences
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doaj-b93a062a17334fe8b401bfc02f85cd182021-01-02T04:58:58ZengVINCA Institute of Nuclear SciencesThermal Science0354-98362014-01-0118115516810.2298/TSCI121220101Y0354-98361300101YModelling the effect of injection pressure on heat release parameters and nitrogen oxides in direct injection diesel enginesYüksek Levent0Sandalci Tarkan1Özener Orkun2Ergenc Alp Tekin3Mechanical Engineering Department, Automotive Sub-Division, Yıldız Technical University, İstanbul, TurkeyMechanical Engineering Department, Automotive Sub-Division, Yıldız Technical University, İstanbul, TurkeyMechanical Engineering Department, Automotive Sub-Division, Yıldız Technical University, İstanbul, TurkeyMechanical Engineering Department, Automotive Sub-Division, Yıldız Technical University, İstanbul, TurkeyInvestigation and modelling the effect of injection pressure on heat release parameters and engine-out nitrogen oxides are the main aim of this study. A zero-dimensional and multi-zone cylinder model was developed for estimation of the effect of injection pressure rise on performance parameters of diesel engine. Double-Wiebe rate of heat release global model was used to describe fuel combustion. extended Zeldovich mechanism and partial equilibrium approach were used for modelling the formation of nitrogen oxides. Single cylinder, high pressure direct injection, electronically controlled, research engine bench was used for model calibration. 1000 and 1200 bars of fuel injection pressure were investigated while injection advance, injected fuel quantity and engine speed kept constant. The ignition delay of injected fuel reduced 0.4 crank angle with 1200 bars of injection pressure and similar effect observed in premixed combustion phase duration which reduced 0.2 crank angle. Rate of heat release of premixed combustion phase increased 1.75 % with 1200 bar injection pressure. Multi-zone cylinder model showed good agreement with experimental in-cylinder pressure data. Also it was seen that the NOx formation model greatly predicted the engine-out NOx emissions for both of the operation modes.http://www.doiserbia.nb.rs/img/doi/0354-9836/2014/0354-98361300101Y.pdfWiebe ROHRmulti-zone modelnitrogen oxide formation modelinjection pressureDiesel engine combustion |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yüksek Levent Sandalci Tarkan Özener Orkun Ergenc Alp Tekin |
spellingShingle |
Yüksek Levent Sandalci Tarkan Özener Orkun Ergenc Alp Tekin Modelling the effect of injection pressure on heat release parameters and nitrogen oxides in direct injection diesel engines Thermal Science Wiebe ROHR multi-zone model nitrogen oxide formation model injection pressure Diesel engine combustion |
author_facet |
Yüksek Levent Sandalci Tarkan Özener Orkun Ergenc Alp Tekin |
author_sort |
Yüksek Levent |
title |
Modelling the effect of injection pressure on heat release parameters and nitrogen oxides in direct injection diesel engines |
title_short |
Modelling the effect of injection pressure on heat release parameters and nitrogen oxides in direct injection diesel engines |
title_full |
Modelling the effect of injection pressure on heat release parameters and nitrogen oxides in direct injection diesel engines |
title_fullStr |
Modelling the effect of injection pressure on heat release parameters and nitrogen oxides in direct injection diesel engines |
title_full_unstemmed |
Modelling the effect of injection pressure on heat release parameters and nitrogen oxides in direct injection diesel engines |
title_sort |
modelling the effect of injection pressure on heat release parameters and nitrogen oxides in direct injection diesel engines |
publisher |
VINCA Institute of Nuclear Sciences |
series |
Thermal Science |
issn |
0354-9836 |
publishDate |
2014-01-01 |
description |
Investigation and modelling the effect of injection pressure on heat release
parameters and engine-out nitrogen oxides are the main aim of this study. A
zero-dimensional and multi-zone cylinder model was developed for estimation
of the effect of injection pressure rise on performance parameters of diesel
engine. Double-Wiebe rate of heat release global model was used to describe
fuel combustion. extended Zeldovich mechanism and partial equilibrium
approach were used for modelling the formation of nitrogen oxides. Single
cylinder, high pressure direct injection, electronically controlled,
research engine bench was used for model calibration. 1000 and 1200 bars of
fuel injection pressure were investigated while injection advance, injected
fuel quantity and engine speed kept constant. The ignition delay of injected
fuel reduced 0.4 crank angle with 1200 bars of injection pressure and
similar effect observed in premixed combustion phase duration which reduced
0.2 crank angle. Rate of heat release of premixed combustion phase increased
1.75 % with 1200 bar injection pressure. Multi-zone cylinder model showed
good agreement with experimental in-cylinder pressure data. Also it was seen
that the NOx formation model greatly predicted the engine-out NOx emissions
for both of the operation modes. |
topic |
Wiebe ROHR multi-zone model nitrogen oxide formation model injection pressure Diesel engine combustion |
url |
http://www.doiserbia.nb.rs/img/doi/0354-9836/2014/0354-98361300101Y.pdf |
work_keys_str_mv |
AT yukseklevent modellingtheeffectofinjectionpressureonheatreleaseparametersandnitrogenoxidesindirectinjectiondieselengines AT sandalcitarkan modellingtheeffectofinjectionpressureonheatreleaseparametersandnitrogenoxidesindirectinjectiondieselengines AT ozenerorkun modellingtheeffectofinjectionpressureonheatreleaseparametersandnitrogenoxidesindirectinjectiondieselengines AT ergencalptekin modellingtheeffectofinjectionpressureonheatreleaseparametersandnitrogenoxidesindirectinjectiondieselengines |
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1724360067789094912 |