Sasol isomerized paraffinic kerosene (IPK) is a coal-derived synthetic fuel under consideration as a blending stock with JP-8 for use in military ground vehicles. Since Sasol IPK is a low ignition quality fuel with derived cetane number (DCN) of 31, there is a need to improve its ignition quality. This paper investigates the effect of adding different amounts of Lubrizol 8090 cetane improver to Sasol IPK on increasing its DCN. The experimental investigation was conducted in a single cylinder research type diesel engine. The engine is equipped with a common rail injection system and an open engine control unit. Experiments covered different injection pressures and intake air temperatures. Analysis of test results was made to determine the effect of cetane improver percentage in the coal-derived Sasol IPK blend on auto-ignition, combustion and emissions of carbon monoxide (CO), total unburned hydrocarbon (HC), oxides of nitrogen (NOx), and particulate matter (PM). In addition, the effect of cetane improver on the apparent activation energy of the global auto-ignition reactions was determined.

Issue Section:
Gas Turbines: Combustion, Fuels, and Emissions
Keywords:
Additives, Combustion, Fuels , Internal combustion engines, Combustion
Topics:
Combustion, Emissions, Fuels, Pressure, Temperature, Ignition, Cylinders, Diesel engines

References

1.
Higgins
,
B.
,
Siebers
,
D.
,
Mueller
,
C.
, and
Aradi
,
A.
,
1998
, “
Effects of an Ignition-Enhancing, Diesel–Fuel Additive on Diesel-Spray Evaporation, Mixing, Ignition, and Combustion
,”
Symp. (Int.) Combust.
,
27
(
2
), pp.
1873
–
1880
.10.1016/S0082-0784(98)80030-1
Google Scholar
Crossref
Search ADS
 
2.
Green
,
G.
,
Henly
,
T.
,
Starr
,
M.
,
Assanis
,
D.
,
Syrimis
,
M.
, and
Kanafani
,
F.
,
1997
, “
Fuel Economy and Power Benefits of Cetane-Improved Fuels in Heavy-Duty Diesel Engines
,”
SAE
Technical Paper No. 97290010.4271/972900.
3.
Stein
,
Y.
,
Yetter
,
R.
,
Dryer
,
F.
, and
Aradi
,
A.
,
1999
, “
The Autoignition Behavior of Surrogate Diesel Fuel Mixtures and the Chemical Effects of 2-Ethylhexyl Nitrate (2-EHN) Cetane Improver
,”
SAE
Technical Paper No. 1999-01-150410.4271/1999-01-1504.
4.
Li
,
T.
, and
Simmons
,
R.
,
1988
, “
The Action of Ignition Improver in Diesel Fuels
,”
Symp. (Int.) Combust.
,
21
(
1
), pp.
455
–
462
.10.1016/S0082-0784(88)80273-X
Google Scholar
Crossref
Search ADS
 
5.
Tieszen
,
S.
,
Stamps
,
D.
,
Westbrook
,
C.
, and
Pitz
,
W.
,
1991
, “
Gaseous Hydrocarbon Air Detonation
,”
Combust. Flame
,
84
(
3
), pp.
376
–
390
.10.1016/0010-2180(91)90013-2
Google Scholar
Crossref
Search ADS
 
6.
Ghosh
,
P.
,
2008
, “
Predicting the Effect of Cetane Improvers on Diesel Fuels
,”
Energy Fuels
,
22
(
2
), pp.
1073
–
1079
.10.1021/ef0701079
Google Scholar
Crossref
Search ADS
 
7.
Signer
,
M.
,
1996
, “
European Auto-Oil Programme. Heavy Duty Diesel Manufacturers View on Influence of Fuel Quality on Emissions
,”
World Conference on International Fuel Quality and Vehicle Technology
.
8.
Lu
,
X.
,
Yang
,
J.
,
Zhang
,
W.
, and
Huang
,
Z.
,
2004
, “
Effect of Cetane Number Improver on Heat Release Rate and Emissions of High Speed Diesel Engine Fueled With Ethanol–Diesel Blend Fuel
,”
Fuel
,
83
(
14
), pp.
2013
–
2020
.10.1016/j.fuel.2004.05.003
9.
Tritthart
,
P.
,
Cichocki
,
R.
, and
Cartellieri
,
W.
,
1993
, “
Fuel Effects on Emissions in Various Test Cycles in Advanced Passenger Car Diesel Vehicles
,”
SAE
Technical Paper No. 93268410.4271/932684.
10.
Kulinowski
,
A.
,
Henly
,
T.
, and
Stocky
,
T.
,
1998
, “
The Effect of 2-Ethylhexyl Nitrate Cetane Improver on Engine Durability
,”
SAE
Technical Paper No. 98136410.4271/981364.
11.
Icingur
,
Y.
, and
Altiparmak
,
D.
,
2003
, “
Effect of Fuel Cetane Number and Injection Pressure on a DI Diesel Engine Performance and Emissions
,”
Energy Convers. Manage.
,
44
(
3
), pp.
389
–
397
.10.1016/S0196-8904(02)00063-8
Google Scholar
Crossref
Search ADS
 
12.
Ladommatos
,
N.
,
Parsi
,
M.
, and
Knowles
,
A.
,
1996
, “
The Effect of Fuel Cetane Improver on Diesel Pollutant Emissions
,”
Fuel
,
75
(
1
), pp.
8
–
14
.10.1016/0016-2361(94)00223-1
Google Scholar
Crossref
Search ADS
 
13.
Li
,
X.
,
Chippior
,
W.
, and
Gülder
,
Ö.
,
1997
, “
Effects of Cetane Enhancing Additives and Ignition Quality on Diesel Engine Emissions
,”
SAE
Technical Paper No. 97296810.4271/972968.
14.
Ullman
,
T.
,
Spreen
,
K.
, and
Mason
,
R.
,
1994
, “
Effects of Cetane Number, Cetane Improver, Aromatics, and Oxygenates on 1994 Heavy-Duty Diesel Engine Emissions
,”
SAE
Technical Paper No. 94102010.4271/941020.
15.
Bunting
,
B.
,
Crawford
,
R.
,
Wolf
,
L.
, and
Xu
,
Y.
,
2007
, “
The Relationships of Diesel Fuel Properties, Chemistry, and HCCI Engine Performance as Determined by Principal Components Analysis
,”
SAE
Technical Paper No. 2007-01-405910.4271/2007-01-4059.
16.
Ickes
,
A.
,
Bohac
,
S.
, and
Assanis
,
D.
,
2009
, “
Effect of 2-Ethylhexyl Nitrate Cetane Improver on NOx Emissions From Premixed Low-Temperature Diesel Combustion
,”
Energy Fuels
,
23
(
10
), pp.
4943
–
4948
.10.1021/ef900408e
Google Scholar
Crossref
Search ADS
 
17.
Liu
,
S.
,
Zhu
,
Z.
,
Zhang
,
Z.
,
Gao
,
G.
, and
Wei
,
Y.
,
2010
, “
Effect of a Cetane Number (CN) Improver on Combustion and Emission Characteristics of a Compression-Ignition (CI) Engine Fueled With an Ethanol−Diesel Blend
,”
Energy Fuels
,
24
(
4
), pp.
2449
–
2454
.10.1021/ef901543m
Google Scholar
Crossref
Search ADS
 
18.
Barbier
,
P.
,
2000
, “
Evaluation of Cetane Improver Effects on Regulated Emissions From a Passenger Car Equipped With a Common Rail Diesel Engine
,”
SAE
Technical Paper No. 2000-01-185310.4271/2000-01-1853.
19.
Nuszkowski
,
J.
,
2008
, “
The Effects of Fuel Additives on Diesel Engine Emissions During Steady State and Transient Operation
,” Ph.D. dissertation, West Virginia University, Morgantown, WV.
20.
McCarthy
,
C.
,
Slodowske
,
W.
,
Sienicki
,
E.
, and
Jass
,
R.
,
1992
, “
Diesel Fuel Property Effects on Exhaust Emissions From a Heavy Duty Diesel Engine That Meets 1994 Emissions Requirements
,”
SAE
Technical Paper No. 92226710.4271/922267.
21.
Kittelson
,
D. B.
,
1998
, “
Engines and Nanoparticles: A Review
,”
J. Aerosol Sci.
,
29
(
5
), pp.
575
–
588
.10.1016/S0021-8502(97)10037-4
Google Scholar
Crossref
Search ADS
 
22.
Khalek
,
I.
,
Kittelson
,
D.
, and
Brear
,
F.
,
2000
, “
Nanoparticle Growth During Dilution and Cooling of Diesel Exhaust: Experimental Investigation and Theoretical Assessment
,”
SAE
Technical Paper No. 2000-01-051510.4271/2000-01-0515.
23.
Nuszkowski
,
J.
,
Flaim
,
K.
, and
Thompson
,
G.
,
2011
, “
The Effect of Cetane Improvers and Biodiesel on Diesel Particulate Matter Size
,”
SAE
Technical Paper No. 2011-01-033010.4271/2011-01-0330.
24.
Suppes
,
G.
,
Rui
,
Y.
,
Rome
,
C.
, and
Chen
,
Z.
,
1997
, “
Cetane-Improver Analysis and Impact of Activation Energy on the Relative Performance of 2-Ethylhexyl Nitrate and Tetraethylene Glycol Dinitrate
,”
Ind. Eng. Chem. Res.
,
36
(
10
), pp.
4397
–
4404
.10.1021/ie9702284
Google Scholar
Crossref
Search ADS
 
25.
Henein
,
N. A.
,
Lai
,
M.
,
Singh
,
I.
,
Wang
,
D.
, and
Liu
,
L.
,
2001
, “
Emissions Trade-Off and Combustion Characteristics of a High-Speed Direct Injection Diesel Engine
,”
SAE
Technical Paper No. 2001-01-019710.4271/2001-01-0197.
26.
Singh
,
I.
,
2009
, “
Parametric Analysis of Combustion and Engine-Out Emissions in a Single Cylinder HSDI Diesel Engine
,” Ph.D. dissertation, Wayne State University, Detroit, MI.
27.
Machrafi
,
H.
, and
Cavadiasa
,
S.
,
2008
, “
An Experimental and Numerical Analysis of the Influence of the Inlet Temperature, Equivalence Ratio and Compression Ratio on the HCCI Auto-Ignition Process of Primary Reference Fuels in an Engine
,”
Fuel Process. Technol.
,
89
(
11
), pp.
1218
–
1226
.10.1016/j.fuproc.2008.05.019
Google Scholar
Crossref
Search ADS
 
28.
Schihl
,
P.
,
Hoogterp-Decker
,
L.
, and
Gingrich
,
E.
,
2012
, “
The Ignition Behavior of a Coal to Liquid Fischer–Tropsch Jet Fuel in a Military Relevant Single Cylinder Diesel Engine
,”
SAE Int. J. Fuels Lubr.
,
5
(
2
), pp.
785
–
802
0.4271/2012-01-1197.
Google Scholar
Crossref
Search ADS
 
29.
Murphy
,
L.
, and
Rothamer
,
D.
,
2011
, “
Effects of Cetane Number on Jet Fuel Combustion in a Heavy-Duty Compression Ignition Engine at High Load
,”
SAE
Technical Paper No. 2011-01-033510.4271/2011-01-0335.
30.
Colban
,
W.
,
Miles
,
P.
, and
Oh
,
S.
,
2007
, “
Effect of Intake Pressure on Performance and Emissions in an Automotive Diesel Engine Operating in Low Temperature Combustion Regimes
,”
SAE
Technical Paper No. 2007-01-406310.4271/2007-01-4063.
31.
Lata
,
D. B.
, and
Misra
,
A.
,
2011
, “
Analysis of Ignition Delay Period of a Dual Fuel Diesel Engine With Hydrogen and LPG as Secondary Fuels
,”
Int. J. Hydrogen Energy
,
36
(
5
), pp.
3746
–
3756
.10.1016/j.ijhydene.2010.12.075
Google Scholar
Crossref
Search ADS
 
32.
Henein
,
N. A.
, and
Bolt
,
J. A.
,
1969
, “
Correlation of Air Charge Temperature and Ignition Delay for Several Fuels in a Diesel Engine
,”
SAE
Technical Paper No. 690252.10.4271/690252
33.
Henein
,
N. A.
, and
Elias
,
N. Y.
,
1978
, “
A Modified Cetane Scale for Low Ignition Quality Fuels
,”
SAE
Technical Paper No. 78064010.4271/780640.
34.
Ryan
,
T. W.
, and
Callahan
,
T. J.
,
1988
, “
Engine and Constant Volume Bomb Studies of Diesel Ignition and Combustion
,” SAE Technical Paper No. 881626.
35.
Ryan
,
T. W.
,
1985
, “
Correlation of Physical and Chemical Ignition Delay to Cetane Number
,”
SAE
Technical Paper No. 85210310.4271/881626.
36.
Kwon
,
S.
,
Arai
,
M.
, and
Hiroyasu
,
H.
,
1990
, “
Effects of Cylinder Temperature and Pressure on Ignition Delay in Direct Injection Diesel Engine
,”
J. M.E.S.J.
,
18
(
1
), pp.
3
–
15
http://trid.trb.org/view.aspx?id=403338.
37.
Henein
,
N.
, and
Bolt
,
J.
,
1967
, “
Ignition Delay in Diesel Engines
,”
SAE
Technical Paper No. 67000710.4271/670007.
38.
Zheng
,
Z.
,
Badawy
,
T.
,
Henein
,
N. A.
,
Sattler
,
E.
, and
Johnson
,
N.
,
2013
, “
Effect of Cetane Improver on Autoignition Characteristics of Low Cetane Sasol IPK Using Ignition Quality Tester
,”
ASME
Paper No. ICEF2013-19061.10.1115/ICEF2013-19061
39.
Green
,
G.
,
Henly
,
T.
,
Starr
,
M.
,
Assanis
,
D.
,
Syrimis
,
M.
, and
Kanafani
,
F.
, “
Fuel Economy and Power Benefits of Cetane-Improved Fuels in Heavy-Duty Diesel Engines
,”
SAE Technical Paper No. 9729000
.
40.
Jansons
,
M.
,
Brar
,
A.
,
Estefanous
,
F.
,
Florea
,
R.
,
Taraza
,
D.
,
Henein
,
N.
, and
Bryzik
,
W.
,
2008
, “
Experimental Investigation of Single and Two-Stage Ignition in a Diesel Engine
,”
SAE
Technical Paper No. 2008-01-107110.4271/2008-01-1071.
41.
Perini
,
F.
,
Dempsey
,
A.
,
Reitz
,
R.
,
Sahoo
,
D.
,
Peterson
,
B.
, and
Miles
,
P.
,
2013
, “
A Computational Investigation of the Effects of Swirl Ratio and Injection Pressure on Mixture Preparation and Wall Heat Transfer in a Light-Duty Diesel Engine
,”
SAE
Technical Paper No. 2013-01-110510.4271/2013-01-1105.
42.
Henein
,
N.
,
Bhattacharyya
,
A.
,
Schipper
,
J.
,
Kastury
,
A.
, and
Bryzik
,
W.
,
2006
, “
Effect of Injection Pressure and Swirl Motion on Diesel Engine-Out Emissions in Conventional and Advanced Combustion Regimes
,”
SAE
Technical Paper No. 2006-01-007610.4271/2006-01-0076.
43.
Patterson
,
D. J.
, and
Henein
,
N. A.
,
1972
,
Emissions From Combustion Engines and Their Controls
,
Ann Arbor Science
,
Ann Arbor, MI
.
44.
United States Environmental Protection Agency,
2006
, “
Canada-United States Air Quality Agreement
,” Report No. EPA430-R-06-012.
45.
Kolodziej
,
C.
,
Wirojsakunchai
,
E.
,
Foster
,
D.
,
Schmidt
,
N.
,
Kamimoto
,
T.
,
Kawai
,
T.
,
Akard
,
M.
, and
Yoshimura
,
T.
,
2007
, “
Comprehensive Characterization of Particulate Emissions From Advanced Diesel Combustion
,”
SAE
Technical Paper No. 2007-01-194510.4271/2007-01-1945.
46.
Kitamura
,
T.
,
Ito
,
T.
,
Kitamura
,
Y.
,
Ueda
,
M.
,
Senda
,
J.
, and
Fujimoto
,
H.
,
2003
, “
Soot Kinetic Modeling and Empirical Validation on Smokeless Diesel Combustion With Oxygenated Fuels
,”
SAE
Technical Paper No. 2003-01-178910.4271/2003-01-1789.
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