Ecological Impacts of Diesel Engine Emissions

Jurić, Vanja; Županović, Dino

doi:10.7307/ptt.v24i2.287

Cited by 6 publications

(7 citation statements)

References 3 publications

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“…The pre-defined ICE parameters are based on the proper selection and combination of commercial Tier 4 marine engines from JCB ltd. and Caterpillar ltd. marine engine manufacturers, which are detailed in [27,28]. (2) The efficiency and variation sensitivity of the propellers are unchanged. Hence, the efficiency is expected to be ideal and set to 100% (there is no deficit of power or performance).…”

Section: Dp Hemv System Modellingmentioning

confidence: 99%

“…In the maritime transport sector, ships are identified as the most efficient transport means for heavy freight and cargo transportation. Conventional marine vessels, which utilise a traditional internal combustion engine (ICE) as a main propulsion system, are very noticeable with high fuel consumption, low fuel economy, and large exhaust emissions, comprising carbon dioxide (CO 2 ) and particulate matter, that produce harmful impacts to the environment [1][2][3][4]. Since recent regulations [5] agreed upon by the International Maritime Organization (IMO) and the European Union (EU) have required significant reduction of exhaust emissions to prevent air pollution of ships, many ship-building manufacturers have been forced to reduce the operating speed as an immediate measure of reducing fuel consumption, hence lowering gas emissions [6].…”

Section: Introductionmentioning

confidence: 99%

“…, (2) : The authors would like to maintain the same accuracy of the cell voltages measured by the employed evaluation board LMU (16 bits resolution); therefore, 4 messages are created (e.g., LMU_RES_M, M = 1-4) where each message contains 4 signals accordingly (e.g., Cell_volt_x, x = 1-16). (3) : negative value stands for charging and vice versa.…”

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confidence: 99%

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Development and Real-Time Performance Evaluation of Energy Management Strategy for a Dynamic Positioning Hybrid Electric Marine Vessel

et al. 2021

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Hybridisation of energy sources in marine vessels has been recognized as one of the feasible solutions to improve fuel economy and achieve global emission reduction targets in the maritime sector. However, the overall performance of a hybrid vessel system is strongly dependent on the efficiency of the energy management system (EMS) that regulates the power-flow amongst the propulsion sources and the energy storage system (ESS). This study develops a simple but production-feasible and efficient EMS for a dynamic positioning (DP) hybrid electric marine vessel (HEMV) and real-time experimental evaluation within a hardware-in-the-loop (HIL) simulation environment. To support the development and evaluation, map-based performance models of HEMVs’ key components are developed. Control logics that underpin the EMS are then designed and verified. Real-time performance evaluation to assess the performance and applicability of the proposed EMS is conducted, showing the improvement over those of the conventional control strategies. The comparison using key performance indicators (KPIs) demonstrates that the proposed EMS could achieve up to 4.8% fuel saving per voyage, while the overall system performance remains unchanged as compared to that of the conventional vessel.

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Section: Dp Hemv System Modellingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development and Real-Time Performance Evaluation of Energy Management Strategy for a Dynamic Positioning Hybrid Electric Marine Vessel

et al. 2021

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“…International shipping traffic presents itself today as a major challenge in terms of impact on environment and human health which entails substantive economic consequences [1][2][3] . The two and four-stroke diesel engines fueled with relatively "inexpensive" heavy-fuel oils (HFO) are the dominant power plants for ship propulsions.…”

Section: Introductionmentioning

confidence: 99%

Nonthermal Plasma System for Marine Diesel Engine Emission Control

Balachandran

Manivannan

Beleca

et al. 2016

IEEE Trans. on Ind. Applicat.

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A non-thermal plasma reactor (NTPR) using two 2.45 GHz Microwave (MW) generators for the abatement of Nitrogen Oxides (NOx) and Sulphur (SOx) contained in the exhaust gas of a 200 kW marine diesel engine was built and tested. Numerical analysis based on a non-thermal plasma kinetics model for the abatement of NOx and SOx from marine diesel engine exhaust gas was performed. A generic kinetic model that implements electron collisions and plasma chemistry has been developed for applications involving low temperature (50K-100K) non-thermal plasma. Abatement efficiencies of NOx and SOx were investigated for a range of mean electron energies which directly impact on the rate constants of electron collisions. The simulation was conducted using the expected composition of exhaust gas from a typical two-stroke slow speed marine diesel engine. The simulation results predict that mean electron energy of 0.25eV-3.2eV gives abatement efficiency of 99% for NOx and SOx. The minimum residence time required was found to be 80ns for the mean electron energy was 1eV. Multi-mode cavity was designed using COMSOL multi-physics. The NTPR performance in terms of NOx and SOx removal was experimentally tested using the exhaust from a 2 kW lab scale two stroke diesel engine. The experimental results also show that complete removal of NO is possible with the microwave plasma (yellow in color) generated. However it was found that generating right Microwave plasma is a challenging task and requires further investigation.

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“…49 and 96 of EURO V level have been put into effect on the territory of Ukraine. The norms of the same standards of EURO V level (as of 01.01.2016) are currently in force on the territory of the Russian Federation, and standards of EURO VI level (as of 01.09.2014 and 01.09.2015 for various types of AMV and SE) -on the territory of the European Union [14, 15,[17][18][19].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%