Experimental Investigation on CO ₂ Reduction in Exhaust Gases of CI Engine Fuelled with Blend of Cotton Seed Oil Methyl Ester and Diesel 2018-28-0035

Global warming and climate change problems resulting from the greenhouse gas emissions, particularly carbon dioxide (CO₂₎, have paved the way for the need of research in minimizing the accumulation of CO₂ in the atmosphere. Though various CO₂ capture technologies have been proposed for post combustion processes, Carbon dioxide capture and storage (CCS) by the absorbent is a simple and better method for CO₂ emission reduction. In the present study experimental investigation has been carried out in a single cylinder, 4-stroke, computerized water-cooled, diesel engine of 5.2 kW rated power, fuelled with diesel, a blend of 20% methyl ester of cotton seed oil and 80% diesel (B20) with and without integration of CCS using wooden charcoal and activated carbon to absorb CO₂ from the exhaust gas. The analysis includes the performance and emission characteristics of the engine and the carbon capture potential of CCS. The results revealed a 19% reduction in CO₂ emission with charcoal and 32% reduction with activated carbon in case of B20 fuel with CCS in comparison with B20 without CCS. However, a small reduction to the tune of 2.35% in brake thermal efficiency has been noted for the CCS integrated engine, owing to the development of back pressure.