Determination of effects of compression ratio variation on performance and emission characteristics of a diesel engine fueled with EDTA-doped sunflower biodiesel-petrodiesel

Authors : Ali Can YILMAZ

Pages : 140-149

Doi:10.18245/ijaet.593073

View : 15 | Download : 8

Publication Date : 2019-10-31

Article Type : Research Paper

Abstract :This experimental study focuses on unraveling the effects of compression ratio insert ignore into journalissuearticles values(CR); variation on performance and emission characteristics of a variable compression ratio insert ignore into journalissuearticles values(VCR); diesel engine under various loads. The engine was fueled with 100% sunflower biodiesel insert ignore into journalissuearticles values(B100); and B100 with Ethylenediaminetetraacetic acid insert ignore into journalissuearticles values(EDTA, C 10 H 16 N 2 O 8 ); additive insert ignore into journalissuearticles values(B100+EDTA);, separately, to determine fuel effect. Subsequent to determination of fuel properties, effects of these two fuels were compared under 3 different CRs. High hydrogen and oxygen contents, negligible chemical inactivity and high cetane number insert ignore into journalissuearticles values(CN); made EDTA an attractive additive for B100 in the context of engine characteristics. It was observed that, B100+EDTA depicted higher average   values of 24.3%, 25.7% and 26.5% whereas they were 17.3%, 18.7% and 19.4% for B100 under CRs of 16, 17 and 18, respectively. In terms of BSFC, average B100 values were 17.3, 16.1, 14.8 insert ignore into journalissuearticles values(kJ/kWh); whereas 10.1, 9.2, 7.9 insert ignore into journalissuearticles values(kJ/kWh); for B100+EDTA under CRs of 16, 17 and 18, respectively. T e values were 265ºC, 252ºC and 234ºC for B100+EDTA and 296ºC, 281ºC and 267ºC for B100 at CRs of 16, 17 and 18, respectively. CO values were 110, 103 and 96 insert ignore into journalissuearticles values(ppm); for B100; 82, 74 and 65 insert ignore into journalissuearticles values(ppm); for B100+EDTA under under in-question CRs. UHC values of 124, 115 and 98 insert ignore into journalissuearticles values(ppm); for B100+EDTA; 141, 134 and 119 insert ignore into journalissuearticles values(ppm); for B100 were obtained under CRs of 16, 17 and 18, respectively. CO 2 emission values were 4.2%, 5.7% and 6.3% insert ignore into journalissuearticles values(by vol.); for B100+EDTA; 3.4%, 3.9% and 5.1% for B100 under CRs of 16, 17 and 18, respectively. NO x values were 170, 192 and 210 insert ignore into journalissuearticles values(ppm); for B100+EDTA; 104, 126 and 137 insert ignore into journalissuearticles values(ppm); for B100 under CRs of 16, 17 and 18 respectively. Smoke opacity values were 16%, 12% and 10% for B100+EDTA; 21%, 18% and 16% for B100 under CRs of 16, 17 and 18, respectively.
Keywords : biodiesel, EDTA, variable compression ratio, diesel engine