Effect of Contamination in Cooling Water Line on Emissions and Equipment of Vessels

Abstract

Emission is a threat to all living things. Despite all the conferences on climate change, emissions could not be reduced. On the contrary, its effect continues to increase. Ships use fossil-based energy and they are widely used vehicles in transportation. This paper provides an analysis of emission in ship main engine and auxiliary machinery. In addition, the effect of contamination on safety valve of ship and funnel is illustrated clearly. All data used in this study were taken from the ship during the 79-day cruise. When the pollution factor was eliminated, the average NO_x and SO_x and total emissions from the cylinder jackets, seawater circuit, scavenger circuit, freshwater circuit decreased significantly. The average revolution of main engine increased by 20% after cleaning. The results of vibration due to contamination were found to be collapse and broke up of the cylinder safety valve of main engine, and insulation layer of funnel of ship was collapsed. Only due to the contamination of the jackets and cylinders of main engine, the amount of energy losses before the ship goes aground increased by 37.48%. But this decreased by 20.83% just after the cleaning procedures were carried out. In addition, the sea circuit of main engine was contaminated at different rates on ship simulator. The actual data is in consistence with the data obtained from the ship simulator.

Keywords

• Energy efficiency
• Pollution effect
• Main engine cooling systems
• Emission
• Vibration
• Ship
• Funnel
• Safety valve
• Fouling

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