An Experimental Investigation on Cloud and Pour point properties of Linseed Biodiesel and analyze the performance and emission characteristics with diesel engine

Department of Mechanical Engineering, Aarupadai Veedu Institute of Technology, Vinayaka Missions Research Foundation(DU), Salem, India

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Published online: 16 April 2026

Abstract

As countries adopting the industrialized social structures are being increased recently, the global focus on sustainability has been also intensified. This transpose has provoked the need to identify accessible and reliable energy sources to handle the rising demands. Comprehensively, transportation is the largest consumer of fossil fuels which is also going to face an upcoming energy crisis. It’s the key area of concern in the adaptation toward sustainable energy solutions. There are multiple researches focused on the alternative fuelsby taking the environmental sustainability, energy security, of conventional fuels into consideration. This investigation analyzes the emission characteristics and performance of linseed biodiesel with diesel engine. It also studies the properties of density pour point and cloud point etc. Cloud point states the crystal begins in the biodiesel and pour point states the least temperature of biodiesel where it gets changed into wax formation. The linseed biodiesel and diesel combination was analyzed with different proportions like 5% of biodiesel with 95% diesel, 10% of biodiesel with 90% diesel, 15% of biodiesel with 85% diesel and 20% of biodiesel with 80% diesel. The pour and cloud point were found for each combinations and the same was compared with ASTM standard. The Specific fuel consumption (SFC), brake thermal efficiency (BTE) for performance analysis along with carbon monoxide (CO), Hydro carbon (HC), Smoke Opacity, Nitrogen oxide (NO_x) for emission analysis were also performed. Through transesterfication method the biodiesel was processed from linseed oil.