Investigation of Impact of CeO2 nanoparticles blended in Nano-emulsion on efficiency and exhaust emission of diesel engine

Abstract

Cerium oxide (CeO2) nanoparticle was added to prepared water in diesel Nano-emulsion tostudy its effect on exhaust emission and performance of diesel engine characteristics betweenneat diesel, Nano-emulsion and Nano-emulsion+ CeO2. Since water and diesel are immiscible,mixed span and Tween 80 surfactants are used for preparation of stable Nano-emulsion.Central composite design, Response surface method is used for optimization process ofpreparation of Nano-emulsion at optimum suitable condition designed by Design Expertsoftware.Dispersed Water present of Nano size effect directly on diesel fuel characteristics incompression ignition engine, contributes on reduction of NOx and smoke emission and betterthermal efficiency, but accompanied by little increase in HC and CO emission and fuelconsumption.CeO2 nanoparticles at three levels (50, 100 and 150 ppm) to optimize Nano-emulsion addedand mixed by high energy homogenizer. All diesel, Nano-emulsion and Nano-emulsion+ CeO2are examined by Engine run at 400 bar and 1500 rpm with different load.Improvement in reduction fuel consumption and thermal efficiency are obtained. Exhaustemission (NOx, HC and CO) and smoke reduced much more are observed with CeO2nanoparticle.

Ecological risk and sources of metals in open‐burned grasses in Guinea Savanna of Nigeria

“…(2018) observed the existence of elements like Ce, Pb, Zr, La, and PGE in street dusts and plants collected along highways and streets in Germany. The presence of Ce in the environment may also be due to its occurrence in CeO 2 nanoparticles used as fuel additive in diesel engines in the last two decades owing to its oxidative ability which enhance the efficiency of the additive by helping to burn‐off soot in the particulate filters (Cassee et al., 2011; Hamadi & Khidhir, 2021; Saraee et al., 2017).…”

“…However, P. repens and S. bicolor were heavily contaminated with Pb ( I geo values of 3.64 each), whereas D. nuda was moderately contaminated with Cr ( I geo of 1). One of the possible sources of accumulation of Cr in the environment might be from effluent discharge of industries ranging from metal processing, stainless‐steel welding, tannery facilities, chromate, and chrome pigment production (Hamadi & Khidhir, 2021; McNeill et al., 2020; Tchounwou et al., 2012). Quite a few numbers of welding and metal processing activities could be seen within 5 km radius of the study area.…”

“…The negative values of I geo observed signifies there was no contamination in the studied area, and the identified elements present were most likely from natural processes of soil and bedrock origin (Barbieri, 2016). However, P. repens and S. bicolor were heavily contaminated with Pb (I geo values of 3.64 processing, stainless-steel welding, tannery facilities, chromate, and chrome pigment production (Hamadi & Khidhir, 2021;McNeill et al, 2020;Tchounwou et al, 2012). Quite a few numbers of welding and metal processing activities could be seen within 5 km radius of the study area.…”

“…Ba has wide applications in the automotive industries ranging from lubricating oil additives to fuel synthesis, production rubber parts, and vehicle brake systems (Grigoratos & Martini, 2015;Merie et al, 2018;Monaci & Bargagli, 1997). the environment may also be due to its occurrence in CeO 2 nanoparticles used as fuel additive in diesel engines in the last two decades owing to its oxidative ability which enhance the efficiency of the additive by helping to burn-off soot in the particulate filters (Cassee et al, 2011;Hamadi & Khidhir, 2021;Saraee et al, 2017).…”