Abstract
Prosopis juliflora biodiesel and isopropanol and diesel fuel to examine the performance, combustion, and emission characteristics along with EGR. Experiments were carried out in a diesel engine with a cooled EGR setup. The 80% of PJB and 20% of ISP were blended by ultra-sonicator, then four test fuels, 10%, 20%, 30%, and 40%, were prepared on a volume basis, magnetically stirred, blended with an equivalent ratio of diesel and subjected to ultra-sonication. EGR was done at three different rates of 10% EGR, 20% EGR, and 30% EGR at a standard injection timing of 230 TDC. Experimental results revealed that with 30% (PJB + ISP) added fuel blend and 30%EGR, significant reductions in NO x and smoke emissions simultaneously with a slight drop in engine performance. For achieving optimum NO x -smoke reductions, higher EGR levels were to be employed for PJB + ISP-diesel blends. Both HC and CO emissions seemed to increase with increasing EGR rates.
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