Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.fuel.2013.12.005
Title: Effects of piston bowl geometry on combustion and emission characteristics of biodiesel fueled diesel engines
Authors: Li, J.
Yang, W.M. 
An, H.
Maghbouli, A.
Chou, S.K. 
Keywords: Biodiesel
Bowl geometry
Detailed chemical reaction model
KIVA4 code
Issue Date: 15-Mar-2014
Citation: Li, J., Yang, W.M., An, H., Maghbouli, A., Chou, S.K. (2014-03-15). Effects of piston bowl geometry on combustion and emission characteristics of biodiesel fueled diesel engines. Fuel 120 : 66-73. ScholarBank@NUS Repository. https://doi.org/10.1016/j.fuel.2013.12.005
Abstract: This paper presents the numerical study of the effects of piston bowl geometry on combustion and emission characteristics of a diesel engine fueled with biodiesel under medium load condition. Three different bowl geometries namely: Hemispherical Combustion Chamber (HCC), Shallow depth Combustion Chamber (SCC), and the baseline Omega Combustion Chamber (OCC) were created with the same compression ratio of 18.5. To simulate the combustion process, computational fluid dynamics (CFD) modeling based on KIVA-4 code was performed. Moreover, CHEMKIN II code was integrated into the KIVA-4 code as the chemistry solver to incorporate detailed chemical kinetics mechanisms consisting of 69 species and 204 reactions for the biodiesel combustion, thereby improving the accuracy of the simulation. It is found that the narrow entrance of combustion chamber could generate a strong squish, especially at high engine speed, hence enhancing the mixing of air and fuel. Also, the simulation results indicate that in terms of performance SCC is favorable at low engine speed; whereas at high engine speed, OCC is preferred. As a consequence, SCC will generate relatively higher NO compared to other two piston bowl designs at low engine speed condition. Similarly, the high performance of OCC bowl geometry could result in a high NO emission at high engine speed condition. © 2013 Elsevier Ltd. All rights reserved.
Source Title: Fuel
URI: http://scholarbank.nus.edu.sg/handle/10635/85081
ISSN: 00162361
DOI: 10.1016/j.fuel.2013.12.005
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

88
checked on Sep 24, 2021

WEB OF SCIENCETM
Citations

67
checked on Sep 24, 2021

Page view(s)

106
checked on Sep 23, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.