Abstract

International marine shipping is a growing component of international trade; a vast majority of all the world’s goods are being transported on large ocean-going vessels. The International Maritime Organization (IMO) introduced the Energy Efficiency Design Index in 2013, a regulatory framework of associated metrics for reducing emissions of CO2 per tonne-mile from shipping by approximately 10% each decade. Therefore, decarbonizing the maritime sector requires the development of new fuel sources. Because of the extremely large physical size of the internal combustion engines present in shipping vessels, experimental iterative development of the engine and fuel system is cost-prohibitive. Thus, the ability to perform combustion system development in a scaled platform that can be more easily operated and modeled computationally is of interest. To that end, scaling relationships are needed to translate the results from a smaller engine to a larger counterpart. Scaling studies to date have been restricted to low scaling ratios, four-stroke light-duty engines, and under-resolved computational fluid dynamic simulations that likely do not accurately capture the physics of scaling. In this work, computational models of a 1:10 scale and a full-scale two-stroke crosshead low-speed marine engine were created and validated against experiments obtained in a real 1:10 scale engine installed at Oak Ridge National Laboratory. Due to the large size of the full-scale engine, the model required large high-performance computing resources to be evaluated. The availability of high-performance computing resources at the Department of Energy’s Leadership Computing Facilities is an enabler of the current work. The results of the small- and large-scale engine simulations were compared to analyze the effectiveness of the appropriate scaling laws under these extreme scaling ratio conditions.

References

1.
U.S. Department of Energy,
2016
, “2016
Billion Ton Report: Advancing Domestic Resources for a Thriving Bioeconomy
,”
Volume 1
: Economic Availability of Feedstocks, M. H. Langholtz, B. J. Stokes, and L. M. Eaton, (eds.), Oak Ridge National Laboratory, Oak Ridge, TN, accessed Apr. 11, 2024, https://www.energy.gov/eere/bioenergy/2016-billion-ton-report
2.
Concawe,
2017
, “
Marine Fuel Facts
,” Concawe, Brussels, Belgium, accessed Apr. 11, 2024, https://www.concawe.eu/wp-content/uploads/2017/01/marine_factsheet_web.pdf
3.
Smith
,
T.
,
2019
, “
Definition of Zero Carbon Energy Sources
,”
Global Maritime Forum
, London, UK, accessed Oct. 10, 2024, https://www.globalmaritimeforum.org/content/2019/09/Getting-to-Zero-Coalition_Zero-carbon-energy-sources.pdf
4.
Lanchester
,
F. W.
,
1906
, “
The Horse-Power of the Petrol Motor in Its Relation to Bore, Stroke and Weight
,”
Proc. Inst. Automob. Eng.
,
1
(
2
), pp.
153
220
.
5.
Bergin
,
M. J.
,
Hessel
,
R. P.
, and
Reitz
,
R. D.
,
2005
, “
Optimization of a Large Diesel Engine Via Spin Spray Combustion
,”
SAE
Paper No. 2005-01-0916.10.4271/2005-01-0916
6.
Stager
,
L. A.
, and
Reitz
,
R. D.
,
2007
, “
Assessment of Diesel Engine Size-Scaling Relationships
,”
SAE
Paper No. 2007-01-0127.10.4271/2007-01-0127
7.
Shi
,
Y.
, and
Reitz
,
R. D.
,
2008
, “
Study of Diesel Engine Size-Scaling Relationships Based on Turbulence and Chemistry Scales
,”
SAE
Paper No. 2008-01-0955.10.4271/2008-01-0955
8.
Lee
,
C.-W.
,
Reitz
,
R. D.
, and
Kurtz
,
E.
,
2010
, “
The Impact of Engine Design Constraints on Diesel Combustion System Size Scaling
,”
SAE
Paper No. 2010-01-0180.10.4271/2010-01-0180
9.
Tess
,
M. J.
,
Lee
,
C.-W.
, and
Reitz
,
R. D.
,
2011
, “
Diesel Engine Size Scaling at Medium Load Without EGR
,”
SAE Int. J. Engines
,
4
(
1
), pp.
1993
2009
.10.4271/2011-01-1384
10.
Curran
,
S.
,
Onorati
,
A.
,
Payri
,
R.
,
Agarwal
,
A. K.
,
Arcoumanis
,
C.
,
Bae
,
C.
, and
Boulouchos
,
K.
, et al.,
2024
, “
The Future of Ship Engines: Renewable Fuels and Enabling Technologies for Decarbonization
,”
Int. J. Engine Res.
,
25
(
1
), pp.
85
110
.10.1177/14680874231187954
11.
Zhou
,
L.
,
Shao
,
A.
,
Wei
,
H.
, and
Chen
,
X.
,
2017
, “
Sensitivity Analysis of Heavy Fuel Oil Spray and Combustion Under Low-Speed Marine Engine-Like Conditions
,”
Energies
,
10
(
8
), p.
1223
.10.3390/en10081223
12.
Zhou
,
X.
,
Li
,
T.
,
Wei
,
Y.
, and
Wu
,
S.
,
2019
, “
Scaling Spray Combustion Processes in Marine Low-Speed Diesel Engines
,”
Fuel
,
258
, p.
116133
.10.1016/j.fuel.2019.116133
13.
Zhou
,
X.
,
Li
,
T.
,
Wei
,
Y.
, and
Wang
,
N.
,
2020
, “
Scaling Liquid Penetration in Evaporating Sprays for Different Size Diesel Engines
,”
Int. J. Engine Res.
,
21
(
9
), pp.
1662
1677
.10.1177/1468087419889835
14.
Zhou
,
X.
,
Li
,
T.
,
Lai
,
Z.
, and
Huang
,
S.
,
2021
, “
Similarity of Split-Injected Fuel Sprays for Different Size Diesel Engines
,”
Int. J. Engine Res.
,
22
(
3
), pp.
1028
1044
.10.1177/1468087419849771
15.
Zhou
,
X.
,
Li
,
T.
, and
Yi
,
P.
,
2021
, “
The Similarity Ratio Effects in Design of Scaled Model Experiments for Marine Diesel Engines
,”
Energy
,
231
, p.
121116
.10.1016/j.energy.2021.121116
16.
Kaul
,
B.
,
Nafziger
,
E.
,
Kass
,
M.
,
Givens
,
W.
,
Crouthamel
,
K.
,
Fogarty
,
J.
, and
Satterfield
,
A.
, et al., 2019, “
Enterprise: A Reduced-Scale, Flexible Fuel, Single-Cylinder Crosshead Marine Diesel Research Engine
,”
CIMAC Congress
, Vancouver, BC, Canada, June 10–14, pp.
1
20
.https://www.osti.gov/biblio/1528709
17.
Ranzi
,
E.
,
Cuoci
,
A.
,
Faravelli
,
T.
,
Frassoldati
,
A.
,
Migliavacca
,
G.
,
Pierucci
,
S.
, and
Sommariva
,
S.
,
2008
, “
Chemical Kinetics of Biomass Pyrolysis
,”
Energy Fuels
,
22
(
6
), pp.
4292
4300
.10.1021/ef800551t
18.
Ranzi
,
E.
,
Frassoldati
,
A.
,
Stagni
,
A.
,
Pelucchi
,
M.
,
Cuoci
,
A.
, and
Faravelli
,
T.
,
2014
, “
Reduced Kinetic Schemes of Complex Reaction Systems: Fossil and Biomass-Derived Transportation Fuels
,”
Int. J. Chem. Kinet.
,
46
(
9
), pp.
512
542
.10.1002/kin.20867
19.
Chuahy
,
F. D. F.
,
Finney
,
C. E.
,
Kaul
,
B. C.
, and
Kass
,
M. D.
,
2022
, “
Computational Exploration of Bio-Oil Blend Effects on Large Two-Stroke Marine Engines
,”
Fuel
,
322
, p.
123977
.10.1016/j.fuel.2022.123977
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