Effect of injection pressure on the combustion, performance and emission characteristics of a biodiesel engine with cerium oxide nanoparticle additive

Experimental investigations to predict optimistic biodiesel(s) and its optimistic operating conditions by varying ignition delay period and fuel spray pressures for lower emissions and better performance

“…However, for the biodiesels, their performance characteristics may be improved further along with further lowering its emission characteristics by varying spray timings at higher spray pressures. 19–43 Hence, forthcoming subsections present the various characteristics for the selected optimistic biodiesel i.e. neat ROME by varying spray pressures such as 500 bar, 625 bar, and 750 bar at spray timings of 8°, 13°, 18°, 23°, 28°, and 33° bTDC in the diesel engine operated at optimistic full load condition.…”

“…It was reported that a spray pressure of 240 bar with 90 ppm nanoparticles’ concentration gives the best performance in the test range of spray pressures 180, 210, and 240 bar. 25 Effects of fuel spray pressures (190, 210, and 230 bar) were reported by using B10 butanol–diesel blend. 26 Effects of fuel spray timings on various characteristics were reported in literature, 27–29 of which tamarind seed biodiesel blend was used by Kumar et al., 27 Mimusops Elangi methyl ester by Krupakaran et al., 28 and Ceiba pentandra by Tamilselvan et al.…”

“…Literature review (Global and Indian overview on ROME, SOME and NOME section) 44–50 shows that comparative study in order to predict the optimistic biodiesel under the same operating conditions on a diesel engine has not been reported yet for the selected biodiesels (SOME, NOME, and ROME). Also, literature review (Studies on spray timings and pressures section 19–43 ) shows that it is very important to study the effects of spray pressure and timings to improve the characteristics. However, study on the effect of varying spray pressures and timings in the diesel engine using any of these biodiesels such as SOME, ROME, and NOME has not been yet reported in the literature; however, these biodiesels have a high potential of their production worldwide and may give an additional source of income to the farmers.…”

Assessment of Co2 Emission by Tractor Engine at Varied Control Settings of Fuel Unit

“…The research on the influence of the selected control settings of a self-ignition engine on the ecological parameters of diesel engines, both in terms of the injection advance angle (Kowalek, 2016;Jiaqiang et al, 2018;Li et al, 2019) and injection pressure (Kowalek, 2014;Kumar et al, 2019;Ağbulut et al, 2020), was carried out for both conventional fuel (DF) and biofuels. The results of these tests indicate, as in this publication, a relatively small impact of the change of the injection advance angle (in relation to the nominal angle) on CO2 emission, and more significant on the content of toxic exhaust gas components, such as: CO, NOx or PM.…”

Effects of particle size of cerium oxide nanoparticles on the combustion behavior and exhaust emissions of a diesel engine powered by biodiesel/diesel blend

“…It has also been reported that nanoparticle-blended fuels were associated with shorter ignition delays vs. conventional diesel fuel and that the maximum achievable cylinder pressure of fuel blends with nanoparticles was more significant than that for neat conventional diesel (Kumar et al, 2019a). Kumar et al (2019b) tested the combined impact of injection pressure (180, 210, and 240 bar) and nanoceria (80 ppm) on the thermal behavior of a diesel engine running on biodiesel (B20). Better performance with lower emissions was observed for the cerium oxide nanoparticle-doped fuel at the highest injection pressure of 240 bar.…”