Effects of Compression Ratio on a Diesel Engine Powered by Tamarind Seed Biodiesel Blend
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Abstract
This study explores the influence of varied compression ratios (CR) - 17, 17.5, and 18 on a single-cylinder diesel engine across a load spectrum, ranging from no load to full load, using Tamarind Seed Biodiesel Blend B20. Significantly, at the maximum CR of 18, Brake thermal efficiency shows a 5.6% improvement over baseline diesel operation. The experiment highlights a substantial 20.33% reduction in Unburned hydrocarbon emissions at CR 18, a modest 2% decrease in Carbon monoxide emissions and a slight 4.33% increase in Nitrogen oxide emissions. These findings offer valuable insights into the intricate interplay of compression ratios, engine performance, and emissions, contributing to the optimization of Tamarind Seed Biodiesel Blend B20 in diesel engines.
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