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Effect of Different Geometrical Changes in the Intake Manifold of a DI Diesel Engine Fueled with Biodiesel-Diesel Blends

JNTU, Anantapur-Devendra Uppara
NIT Rourkela, India-Niklesh P. Reddy, Naseem Khayum
  • Technical Paper
  • 2020-01-0346
To be published on 2020-04-14 by SAE International in United States
One of the major challenges of biodiesel run diesel engines is poor mixture formation. This problem can be overcome by inducing the turbulence into the engine cylinder, thereby a proper mixing of air-fuel occurs. In this study, an attempt was made to assess the engine behavior in terms of its combustion, performance and emission characteristics by replacing the normal intake manifold with the internally buttress threaded manifold, which is designated as IBTM throughout the manuscript. This investigation was further carried out to run the engine with suitable blends such as WCOME10 (10% of WCOME + 90% diesel) and WCOME20 (20% of WCOME + 80% diesel). Based on the results obtained in this study, IBTM exhibits a higher BTE of about by 2.8% for WCOME20-b than that of diesel operation (at normal intake). At the same time, the carbon monoxide (CO), hydrocarbon (HC) and smoke emissions were decreased by about 1%, 30.3%, and 20.4% respectively, whereas, NOx emissions were increased by about 21.9% for IBTM run on same blend (WCOME20-b) on compared to the normal intakeā€¦