Experimental Investigation on Establishing the HCCI Process Fueled by N-Heptane in a Direct Injection Diesel Engine at Different Compression Ratios

Tuan Le Anh, Vinh Nguyen Duy, Ha Khuong Thi and Hoi Nguyen Xa
Additional contact information
Tuan Le Anh: School of Transportation Engineering, Hanoi University of Science and Technology, Hanoi 100000, Vietnam
Vinh Nguyen Duy: School of Transportation Engineering, Hanoi University of Science and Technology, Hanoi 100000, Vietnam
Ha Khuong Thi: Faculty of Mechanical Engineering, University of Transport and Communications, Hanoi 100000, Vietnam
Hoi Nguyen Xa: University of Fire Fighting and Prevention, Hanoi 100000, Vietnam

Sustainability, 2018, vol. 10, issue 11, 1-11

Abstract: Establishing the homogeneous charge compression ignition (HCCI) process in a diesel engine, in order to improve exhaust emission quality while extending the HCCI regime, is one of the challenges in applying HCCI in worldwide applications. This can be done by decreasing the compression ratio, and controlling the exhaust gas recirculation (EGR) rate and charging temperature. In this paper, an original single cylinder diesel engine was converted to n-heptane-fueled HCCI with the fuel injected into the intake manifold. At the designed compression ratio of 20:1, the HCCI engine could operate stably at low speed (from 1600 rpm to 2000 rpm) and low load (10% to 20% load). In addition, reducing the compression ratio from 20:1 to 14.87:1 by changing the thickness of the cylinder head gasket and with no EGR applied extended the operating range to 50% load and 3200 rpm speed.

Keywords: internal combustion engine; exhaust gas recirculation; HCCI; n-heptane fuel; pre-ignition; engine knock (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/10/11/3878/pdf (application/pdf)
https://www.mdpi.com/2071-1050/10/11/3878/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:10:y:2018:i:11:p:3878-:d:178212

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().