Performance Optimization of High-Pressure SCR System in a Marine Diesel Engine. Part I: Flow Optimization and Analysis

Marine diesel engines are facing challenges to cope with the emission-reduction regulations set by the international maritime organization (IMO). Hydrogen fuel is one of the alternative fuels which can be used to reduce the exhaust gas emissions from ships. The current paper investigates the effect of using diesel-hydrogen dual fuels on the environmental, energetic and exergetic performance parameters of slow speed marine diesel engine. The investigation is performed using Engineering Equation Solver (EES) software package. As a case study, slow speed diesel engine has been investigated. The results obtained revealed that the energetic and exergetic parameters are influenced by engine load and hydrogen substitution percent. The exergy efficiency is increased by 3.65%, 8.20%, 13.99%, and 21.7% for the hydrogen substitution percentages of 10%, 20%, 30%, and 40%, respectively compared with the diesel engine at full load. Environmentally, CO and CO2 emissions are reduced and NOx emissions are increased as the hydrogen energy content increases. Dual fuel engine with input hydrogen energy fractions of 10% and 20% will comply with the required NOx emission regulations set by IMO after using selective catalytic reduction (SCR) system. It will comply with the required regulations with relative percentages of 96.4% and 98.4%, respectively.

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20810 Newly Developed Diesel Engine Particulate Filter for Marine Diesel Engine (Part 5) : Analysis of Particulate Size Distribution

The Proceedings of Conference of Kanto Branch ◽

10.1299/jsmekanto.2010.16.265 ◽

2010 ◽

Vol 2010.16 (0) ◽

pp. 265-266

Author(s):

Hongrun ZHU ◽

Munekatsu FURUGEN ◽

Tadashi MAKINO ◽

Hidetsugu SASAKI ◽

Tatsuro TSUKAMOTO ◽

...

Keyword(s):

Diesel Engine ◽

Size Distribution ◽

Particulate Filter ◽

Marine Diesel Engine ◽

Engine Part ◽

Marine Diesel ◽

Particulate Size

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20808 Study on The Particulate Size Distribution form Two-Stroke Marine Diesel Engine (Part 1) : Effect of Dilution Ratio of Exhaust Gas

The Proceedings of Conference of Kanto Branch ◽

10.1299/jsmekanto.2010.16.261 ◽

2010 ◽

Vol 2010.16 (0) ◽

pp. 261-262

Author(s):

Hidetsugu SASAKI ◽

Hongrun ZHU ◽

Tatsuro TSUKAMOTO ◽

Yuki TAKAGI ◽

Hideyuki UMEZAWA

Keyword(s):

Diesel Engine ◽

Size Distribution ◽

Marine Diesel Engine ◽

Exhaust Gas ◽

Dilution Ratio ◽

Distribution Form ◽

Engine Part ◽

Marine Diesel ◽

Particulate Size

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Design optimization of the mixing chamber in SCR system for marine diesel engine(Diesel Engines, Performance and Emissions, NOx Strategies)

The Proceedings of the International symposium on diagnostics and modeling of combustion in internal combustion engines ◽

10.1299/jmsesdm.2004.6.87 ◽

2004 ◽

Vol 2004.6 (0) ◽

pp. 87-92 ◽

Cited By ~ 1

Author(s):

Tae Young Oh ◽

Joon Ho Ko ◽

Hee Je Seong ◽

Byeong Su Min

Keyword(s):

Diesel Engine ◽

Design Optimization ◽

Diesel Engines ◽

Marine Diesel Engine ◽

Mixing Chamber ◽

Performance And Emissions ◽

Marine Diesel ◽

Scr System

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Study on Optimization Simulation of Scr Denitration System for Marine Diesel Engine

Polish Maritime Research ◽

10.2478/pomr-2018-0107 ◽

2018 ◽

Vol 25 (s3) ◽

pp. 13-21

Author(s):

Jun Du ◽

Ruo Nan Li ◽

Xin Wu ◽

Yan Zhang

Keyword(s):

Diesel Engine ◽

Gas Flow ◽

Rapid Development ◽

Marine Diesel Engine ◽

Engine Exhaust ◽

Shipbuilding Industry ◽

Optimization Simulation ◽

Marine Diesel ◽

System Selection ◽

Scr System

Abstract With the rapid development of shipbuilding industry exhaust world is also very harmful one kind of environmental issues, and the ship marine diesel engine exhaust gas is mainly produced, so in recent years it has developed a diesel engine SCR system. SCR system can control emissions of nitrogen oxides in the exhaust of vessel, furthermore air pollution can be reduced. The main goal of article was using fluent software to correct SCR system selection and flue gas flow under different size best deflector arrangement is simulated. Next goal is further optimize the structure of the SCR system.

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