Influence of ZnO nanoparticles and dispersant in Baheda oil biodiesel blend on the assessment of performance, combustion, and emissions of VCR diesel engine

Abstract

The current investigation is focused on the assessment of combustion, performance, and emission parameters of VCR compression ignition engine working with ZnO nanoparticles dispersed Baheda (Terminalia bellirica) oil biodiesel (BOBD20). The ZnO nanoparticles were considered at the accompanying extents, for instance, 50, 75, and 100 ppm. Besides, a 1:1 proportion of dispersant (QPAN80) was blended to ZnO nanoparticles. The entire experimentation was performed at four compression ratios such as 16.5:1, 17.5:1. 18.5:1, and 19.5:1, respectively. The ZnO nanoparticle dispersed BOBD20 has shown tremendous outcomes. The dispersant added fuel was shown encouraging outcomes than regular diesel and biodiesel. Among all, the BOBD20 + ZnO75 + DSP 75 was revealed better outcomes concerning the operating characteristics. Further, the positive impact was perceived with increasing compression ratio and attained encouraging outcome at CR19.5:1. For BOBD20 + ZnO 75 + DSP 75 and at CR19.5:1, the higher BTE and least BSFC were obtained was 34.89% and 0.305 kg/ kWh. Similarly, the highest combustion quantities for instance CP and NHRR were seen as 72.52 bar and 61.22 J/°CA, respectively. Finally, the minimum emissions of CO, UHC, and NO x, were 0.08%, 25 ppm, and 932 ppm, respectively for BOBD20 + ZnO75 + DSP75. KeywordsBiodiesel • Cetane number • Emission • Brake thermal efficiency • Cylinder pressure Abbreviations ZnO Zinc oxide BOBD20 20% Biodiesel in clean diesel BD100 Pure Baheda biodiesel ASTM American Standard for Testing Materials BOME20 20% Baheda Oil biodiesel and 80% standard diesel ZnO50 Zinc oxide 50 ppm ZnO75 Zinc oxide 75 ppm ZnO100 Zinc oxide 100 ppm * Jaikumar Sagari