The influence of injection pressure on combustion and emission characteristics of a common-rail HSDI diesel engine
Joint Authors
Dhahad, Haydar Abd
Abd al-Hadi, Muhammad A.
Alfayydh, Ekhlas M.
Megaritis, T
Source
Thi-Qar University Journal for Engineering Sciences
Issue
Vol. 5, Issue 1 (30 Jun. 2014), pp.55-72, 18 p.
Publisher
University of Thi-Qar College of Engineering
Publication Date
2014-06-30
Country of Publication
Iraq
No. of Pages
18
Main Subjects
Earth Sciences, Water and Environment
Abstract EN
The present work investigates the influence of fuel injection pressure on the combustion and emission characteristics of ultra-low diesel fuel for high speed direct injection ( HSDI) diesel engine at different fuel injection timings( -12,-9,-6,-3,0 )ATDC has been made .
The fuel injection pressure were (800,1000,1200) bar and at high load ( 80Nm= 5BMAP) , low load ( 40Nm=2.5BMAP ) , With constant engine speed ( 1500rpm) .
In-cylinder pressure was measured and analyzed using LABVIWE program .A calculation program specially written in MATLAB software was used to extract the apparent heat release rate, the ignition delay, combustion duration and specifies the amount of heat released during the premixed and diffusion combustion phases ( premixed burn fraction PMBF) and ( diffusion burn fraction DBF).
The influence of injection pressure on the exhaust emissions such as carbon monoxide (CO), total hydrocarbons (THCs), nitric oxides (NOx), smoke number (SN) and fuel consumption were also investigated.
A result referring to that when the injection pressure was increased, the ignition delay reduced.
A shorter ignition delay at high injection pressure also advanced the combustion, and increased the in-cylinder pressure, heat release rate and their peaks respectively .The premixed burn fraction increased with fuel injection pressure increasing, and this caused a decrease in each of the exhaust SN, THC and CO emissions but the NOx emissions increased.
American Psychological Association (APA)
Dhahad, Haydar Abd& Abd al-Hadi, Muhammad A.& Alfayydh, Ekhlas M.& Megaritis, T. 2014. The influence of injection pressure on combustion and emission characteristics of a common-rail HSDI diesel engine. Thi-Qar University Journal for Engineering Sciences،Vol. 5, no. 1, pp.55-72.
https://search.emarefa.net/detail/BIM-763579
Modern Language Association (MLA)
Dhahad, Haydar Abd…[et al.]. The influence of injection pressure on combustion and emission characteristics of a common-rail HSDI diesel engine. Thi-Qar University Journal for Engineering Sciences Vol. 5, no. 1 (2014), pp.55-72.
https://search.emarefa.net/detail/BIM-763579
American Medical Association (AMA)
Dhahad, Haydar Abd& Abd al-Hadi, Muhammad A.& Alfayydh, Ekhlas M.& Megaritis, T. The influence of injection pressure on combustion and emission characteristics of a common-rail HSDI diesel engine. Thi-Qar University Journal for Engineering Sciences. 2014. Vol. 5, no. 1, pp.55-72.
https://search.emarefa.net/detail/BIM-763579
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 67-72
Record ID
BIM-763579