Research Papers: Internal Combustion Engines

Evaluation of Emissions Characteristics of Marine Diesel Engine Intake of Exhaust Gas of Lean Burn Gas Engine

[+] Author and Article Information
Yoshifuru Nitta

National Institute of Maritime,
Port and Aviation Technology,
6-38-1, Shinkawa, Mitaka,
Tokyo 181-0004, Japan
e-mail: nitta@nmri.go.jp

Dong-Hoon Yoo

National Institute of Maritime,
Port and Aviation Technology,
6-38-1, Shinkawa, Mitaka,
Tokyo 181-0004, Japan
e-mail: komorebi023@gmail.com

Sumito Nishio

National Institute of Maritime,
Port and Aviation Technology,
6-38-1, Shinkawa, Mitaka,
Tokyo 181-0004, Japan
e-mail: nishio@nmri.go.jp

Yasuhisa Ichikawa

National Institute of Maritime,
Port and Aviation Technology,
6-38-1, Shinkawa, Mitaka,
Tokyo 181-0004, Japan
e-mail: ichikawa@nmri.go.jp

Koichi Hirata

National Institute of Maritime,
Port and Aviation Technology,
6-38-1, Shinkawa, Mitaka,
Tokyo 181-0004, Japan
e-mail: khirata@nmri.go.jp

Yudai Yamasaki

Department of Mechanical Engineering,
The University of Tokyo,
7-3-1, Hongo, Bunkyou-ku,
Tokyo 113-8656, Japan
e-mail: yudai_y@fiv.t.u-tokyo.ac.jp

1Corresponding author.

Contributed by the IC Engine Division of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received December 11, 2016; final manuscript received July 21, 2017; published online October 10, 2017. Assoc. Editor: Eric Petersen.

J. Eng. Gas Turbines Power 140(2), 022802 (Oct 10, 2017) (8 pages) Paper No: GTP-16-1581; doi: 10.1115/1.4037868 History: Received December 11, 2016; Revised July 21, 2017

The need for reductions of nitrogen oxides (NOx), sulfur oxides (SOx), and carbon dioxide (CO2) emissions has been acknowledged on the global level. However, it is difficult to meet the strengthened emissions regulations by using the conventional marine diesel engines. Therefore, lean burn gas engines have been recently attracting attention in the maritime industry. Because they use natural gas as fuel and can simultaneously reduce both NOx and CO2 emissions. On the other hand, since methane is the main component of natural gas, the slipped methane, which is the unburned methane emitted from the lean burn gas engines, might have a potential impact on global warming. The authors have proposed a combined exhaust gas recirculation (C-EGR) system to reduce the slipped methane from the gas engines and NOx from marine diesel engines by providing the exhaust gas from lean burn gas engine to the intake manifold of the marine diesel engine using a blower. Since the exhaust gas from the gas engine includes slipped methane, this system could reduce both the NOx from the marine diesel engine and the slipped methane from the lean burn gas engine simultaneously. This paper introduces the details of the proposed C-EGR system and presents the experimental results of emissions characteristics on the C-EGR system. As a result, it was confirmed that the C-EGR system attained more than 75% reduction of the slipped methane in the intake gas. Additionally, the NOx emission from the diesel engine decreased with the effect of the exhaust gas recirculation (EGR) system.

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IMO, 2017, “ International Convention for the Prevention of Pollution From Ships (MARPOL),” International Maritime Organization, London, accessed Sept.15, 2017, http://www.imo.org/en/about/conventions/listofconventions/pages/international-convention-for-the-prevention-of-pollution-from-ships-(marpol).aspx
Lin, C.-Y. , 2013, “ Strategies for Promoting Biodiesel Use in Marine Vessels,” Mar. Policy, 40, pp. 84–90. [CrossRef]
Brynolfa, S. , Magnusson, M. , Fridella, E. , and Andersson, K. , 2014, “ Compliance Possibilities for the Future ECA Regulations Through the Use of Abatement Technologies or Change of Fuels,” Transp. Res. Part D, 28, pp. 6–18. [CrossRef]
Briggs, J. , and McCarney, J. , 2013, “ Field Experience of Marine Selective Catalytic Reduction,” CIMAC Congress, Shanghai, China, May 13–16, Paper No. 220.
Azzara, A. , Rutherford, D. , and Wang, H. , 2014, “ Feasibility of IMO Annex VI Tier III implementation Using Selective Catalytic Reduction,” The International Council on Clean Transportation, Washington, DC, Working Paper 2014-4.
Herdzik, J. , 2013, “ Aspects of Using LNG as a Marine Fuel,” J. KONES, 19(2), pp. 201–209.
Einang, P. M. , 2007, “ Gas Fueled Ships,” CIMAC Congress, Vienna, Austria, May 21–24, Paper No. 261.
Nylund, I. , and Ott, M. , 2013, “ Development of a Dual Fuel Technology for Slow-Speed Engines,” CIMAC Congress, Shanghai, China, May 13–16, Paper No. 284.
Troberg, M. , Portin, K. , and Jarvi, A. , 2013, “ Update on Wärtsilä 4-Stroke Gas Product Development,” CIMAC Congress, Shanghai, China, May 13–16, Paper No. 406.
Juliussen, L. R. , Mayer, S. , and Kryger, M. , 2013, “ The MAN ME-GI Engine: From Initial System Considerations to Implementation and Performance Optimization,” CIMAC Congress, Shanghai, China, May 13–16, Paper No. 424.
CIMAC WG 17, 2014, “ Methane and Formaldehyde Emissions of Gas Engines,” The International Council of Combustion Engines, Frankfurt, Germany, accessed Sept. 15, 2017, http://www.cimac.com/cms/upload/workinggroups/WG17/CIMAC_Position_Paper_WG17_Methane_and_Formaldehyde_Emissions_2014_04.pdf
Tashima, H. , and Tsuru, D. , 2013, “ Reduction of Methane Slip From Gas Engines by O2 Concentration Control Using Gas Permeation Membrane,” SAE Paper No. 2013-01-2618.
May, I. , Cairns, A. , Zhao, H. , Pedrozo, V. , Wong, H. C. , Whelan, S. , and Bennicke, P. , 2015, “ Reduction of Methane Slip Using Premixed Micro Pilot Combustion in a Heavy-Duty Natural Gas-Diesel Engine,” SAE Paper No. 2015-01-1798.
Yoo, D.-H. , Fujita, H. , and Harano, W. , 2009, “ Exhaust Gas Recirculation in Combined System of Gas Engine and Diesel Engine,” J. Jpn. Inst. Mar. Eng., 44(1), pp. 145–149 (in Japanese). [CrossRef]
Nitta, Y. , Yoo, D.-H. , Nishio, S. , Ichikawa, Y. , and Hirata, K. , 2015, “ Improvement of Exhaust Gas Emissions by Exhaust Gas Recirculation System Combined Marine Diesel Engine and Gas Engine,” 85th Annual Meeting of Japan Institute of Marine Engineering, Tokyo, Japan, Oct., pp. 17–18 (in Japanese).
ISO, 2006, “ Reciprocating Internal Combustion Engines-Exhaust Emission Measurement-Part 1, Test-Bed Measurement of Gaseous and Particulate Exhaust Emissions,” International Organization for Standardization, Geneva, Switzerland, Standard No. ISO 8178-1.
Lü, X.-C. , Chen, W. , and Huang, Z. , 2005, “ A Fundamental Study on the Control of the HCCI Combustion and Emissions by Fuel Design Concept Combined With Controllable EGR-Part 2, Effect of Operating Conditions and EGR on HCCI Combustion,” Fuel, 84(9), pp. 1084–1092. [CrossRef]
Maiboom, A. , Tauzia, X. , and Hétet, J.-F. , 2008, “ Experimental Study of Various Effects of Exhaust Gas Recirculation (EGR) on Combustion and Emissions of an Automotive Direct Injection Diesel Engine,” Energy, 33(1), pp. 22–34. [CrossRef]
Hebbar, G. S. , and Bhat, A. K. , 2013, “ Control of NOx from a DI Diesel Engine With Hot EGR and Ethanol Fumigation: An Experimental Investigation,” Int. J. Automot. Technol., 14(3), pp. 333–341. [CrossRef]
Jin, K. , Takashi, O. , Yasuhiro, D. , Ryouji, K. , and Takeshi, S. , 2000, “ Combustion and Exhaust Gas Emission Characteristics of a Diesel Engine Dual-Fueled With Natural Gas,” Soc. Automot. Eng. Jpn. Rev., 21(4), pp. 489–496.


Grahic Jump Location
Fig. 1

Schematic diagram of C-EGR system

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Fig. 2

Schematic diagram of exhaust gas flow in C-EGR system

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Fig. 3

Relationship between measured and calculated CO2 concentration in merged exhaust gas. The diagonal line means calculated volume flow rate is equal to measured volume flow rate.

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Fig. 4

Relationships among EGR rate, cylinder pressure, fuel injection pressure, and HRR histories. Premixed phase is dominant at low load and diffusion combustion phase becomes dominant at high load, and midload exhibits the shift. The premixed and diffusion combustion phases thus shift with engine load.

Grahic Jump Location
Fig. 5

Relationships between EGR rate, O2, and CO2 concentration in the intake manifold of the diesel engine. O2 concentration is decreased and CO2 concentration is increased with increasing EGR rate.

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Fig. 6

Relationships among EGR rate, NOx emission rate, CO emission rate, and FSN from the diesel engine. With increasing EGR rate, NOx reduction and particle as well as CO emission are tradeoff on each load condition.

Grahic Jump Location
Fig. 7

Relationships among EGR rate, methane quantity including the intake gas and exhaust gas, and methane reduction rate of diesel engine. With increasing EGR, methane quantity including the intake gas and exhaust gas was increased, but methane reduction was increased on each load condition. With increasing load condition, methane reduction was decreased.

Grahic Jump Location
Fig. 8

Relationship between the unburned methane emission per cycle and EGR rate on each load condition. The unburned methane emission per cycle is increased with increased load and EGR rate.



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