Exhaust gas emissions from marine diesel engines are expected to rise dramatically in future decades where hazardous compounds containing NO2, SO2, CO2, and complex particulate matter will affect the human respiratory system and the ecosystem of the environment. The United Nations have addressed through International Maritime Organization (IMO) for emission control areas (ECA) under Marpol Annex VI to impose mandatory limits of SOx and NOx emissions in designated areas of ECA and Non-ECA. The legislation mandated for ECA areas of 0.10 (99%) and 0.50 (95%) cleaned air by either utilizing high-cost compliant fuel or the alternative approach using SOx Scrubbers. The study aims to design an efficient SOx scrubber and system improvisation utilizing actual boiler engine inputs based on a successfully trialed scrubber from Serwah Ibrahim's study from Chalmers University, Sweden. As scrubber technology emerges, high-cost fabrication and poor material selection opted to be the problem. With the Researcher's experience and thorough investigation, the research was able to calculate the lower cost and efficient material thickness together with calculations of each component using the ASME VIII division 1 guidebook. The study calculated nozzle positioning on dish head, miter bend calculation, and reinforcement pad calculation. The research proved for potential power harnessing through the utilization of fluid emission of power calculation about 45 KW can be harnessed of 30 m/s as fluid velocity retrieved from ANSYS with 210,000 kg/hr of exhaust gas. Moreover, 900 cubic meters per hour at 60 meters supplied head for seawater distributions have proved that SOx gases were able to be removed completely during the chemical reaction between packing bed and demisters using ANSYS software. Packing bed software was also used with 79% for each capacity filtration of SOx components with seawater. Overall, the study has shown 4.4 times more economical compared with commercial scrubbers and 40% higher overall efficiency from the perspective of material cost and system efficiency on further energy utilization for power generation.
The Design and Evaluation of Exhaust Gas Cleaning System Equipped with SOx Scrubber
2022-05-25
3796875 byte
Conference paper
Electronic Resource
English