Greater interdependence and integration among the countries worldwide have resulted in growth of world trade and, what follows, marine transportation. In last few years, despite economic stagnation, number ships has increased. An increase transportation means greater air pollution caused by ships, is paramount importance for port cities. One efficient ways limiting negative impact lying ports on environment power supply from local electricity stations. This will allow turning generating...

In general, the performance of a ship in service is different from that obtained on shipyard sea trial. Apart any differences due to loading conditions, and for which correction should be made, these arise principally weather, fouling surface deterioration hull propeller. The influence both terms wind an extremely important factor analysis. Consequently, weather effects needs taken into account if realistic evaluation made. primary role analysis standard data, under varying operational...

This paper gives an overview of a robust dielectric barrier discharge reactor-catalyst construction used in bypass marine diesel-engine exhaust gas system. Electrode arrangement, housing, and electrode positioning systems are discussed allowing for high temperature reasonable vibration operation. Preliminary test results given considering the chemical reactions, particulate matter, CO HC reductions. An operative removal efficiency up to 99 percent is obtained (relative percentage units with...

Modern ships are required to increase the energy efficiency and minimize fuel consumption. This paper presents construction, main properties exemplary measurement results of a novel system intended for shaft power monitoring. The telemetry consists stationary part, responsible wireless supply transfer rotating part. Additional functions stationery unit include radio-based, bidirectional communication with rotating, microcontroller-based unit, Modbus-based graphical user interface....

Environmental regulations instigated the technological and procedural revolution in shipping. One of challenges has been sulfur emission control areas (SECA) requirement fuel changeover. Initially, many reports anticipated that new grades low fuels might increase various technical problems ship operation. This research develops a simple easy to use method failure severity intensity assessment relation The scale rate ship’s system was evaluated qualitatively quantitively, using developed...

Propulsion shaft torque measurement is essential in ship energy efficiency evaluation and emission control. Its accuracy uncertainty influence decision making terms of voyage optimisation fuel consumption. For best results, the measuring device should be adjusted calibrated adequately. This paper analyses problem propulsion meter zero adjustment. Presented results initial investigation suggest significant unrepeatability observed when unit at a standstill. Using recently designed telemetry...

The ship "Energy Efficiency Design Index (EEDI)" has been formulated by the IMO Marine Environment Protection Committee (MEPC) as a measure of CO 2 emission performance ships.The EEDI is calculated based on characteristics at build, incorporating parameters including capacity, engine power and fuel consumption.Shipping responsible for discharge approximately 3.3% global despite being an energy-efficient transport means, compared with other modes, there are opportunities increasing energy...

At present, air pollution Annex to Marpol 73/78 convention is being compiled regulate NOx and SOx emission limits. The paper describes the application of a CFD combustion model - KIVAII3v for large bore, slow speed marine diesel engine explores feasibility using fuel timing injection variables estimate exhaust emissions levels, at steady running conditions. correlation analysis between measured calculated gaseous caused by variable (VIT) was performed. based on experimental data from...