Performance, Combustion and Emission Characteristics of a D.I. Diesel Engine Fuelled with Nanoparticle Blended Jatropha Biodiesel

Abstract

IntroductionThere is an increasing demand to find out the biodegradable and environmental friendly fuel to meet the future energy demands. Several legislations were followed for improving the disadvantage of biodiesel fuel such as increased NOx emission and soot particles. To achieve standard emission norms, many studies have been conducted over past few decades. Among them, recent fuel additives namely antioxidants and nanoparticles were preferred for minimizing the NOx emission effectively. Fattah et al., [1] used antioxidants namely monophenolic, 2(3)-tert-Butyl-4-methoxyphenol, 2,6-di-tert-butyl-4-methylphenol, diphenolic, 2-tert-butylbenzene-1,4-diol as additive in calophyllum inophyllum biodiesel blends at 2000 ppm (parts per million) and observed percentage reduction of NOx emission by 3.6 % and improvement in brake specific fuel consumption by 1.5 % along with higher emission of carbon monoxide (CO) and unburned hydrocarbon (HC) in a four cylinder, four stroke, water cooled, indirect injection diesel engine. Varatharajan et al., [2] conducted experimental investigation in computerized four stroke water cooled single cylinder diesel engine by adding antioxidant additives, N,N′-diphenyl-1,4-phenylenediamine and N-phenyl-1,4-phenylenediamine at 1000 and 2000 ppm with soybean biodiesel and observed 14 % increase in CO, 16 % increase in HC emission, 9 % reduction in Nitric oxide (NO) and 0.8 % reduction in brake thermal efficiency (BTE). Similarly, when N, N-diphenyl-1,4-phenylenediamine at 150 ppm was blended with jatropha diesel blends, 16 % reduction in NO was observed with higher emission of HC and CO [3]. From the antioxidant studies, it is observed that antioxidants as additive in fuel was effective for NO reduction, whereas the brake specific consumption, HC and CO emission increases for antioxidant addition. In contrast, when nanoparticles were used as additive in fuel, significant improvement in both performance and emission characteristics were observed.Sajith et al. [4] experimented with cerium oxide nanoparticle at 20, 40 and 60 ppm addition in jatropha biodiesel and observed significant reduction of NOx by 30 % and HC by 40 % in a fourstroke, single cylinder, water-cooled compression ignition. They observed that the significant reduction of NOx and HC emission

Experimental Investigation into Effects of Addition of Aluminium Oxide on Performance, Combustion and Emission Characteristics of Pongamia Biodiesel Blends in CI Engine

“…[5] However it is broadly acquired as a comparable fuel to diesel working fluid in compression ignition engines, there is an extensive downside in the use of pongamia as higher emissions of NOx and low point heating rate values. With major drawbacks being engine compatibility, cold flow, injector chocking, and high price, various published researches have recorded that problems associated with pongamia can be enhanced by using different set of additives [6]. In a direct or indirect sense, usage of additives can revamp the cutback of exhaust emissions can reduce the nations dependency towards each other by all the means.…”

Effect of Aluminum Oxide Nano-Particle in Jatropha Biodiesel on Performance, Emissions and Combustion Characteristics of D I Diesel Engine

“…This is due to the shortened ignition delay and less fuel is added during combustion, which in turn, leads to decrease in NO X emissions [1]. Decrease of NO X emissions for B20 with nanoparticles was due to the scavenging ofnitric oxide radical by the effect of nanoparticle and responsible for the formation of NO [9].The observed NOx emission for neat diesel, jatropha biodiesel-diesel blend B20, B20+ 20 NAO, B20+ 30 NAO and B20+ 40 NAO at full load were217, 272, 250, 240 and 230ppm, respectively. The percentage reductions of NOx emission for B20+ 20 NAO, B20+ 30 NAO and B20+ 40 NAO were 7.5, 10 and 13%,respectively, when compared to that of B20.…”

“…A constant agitation time of 30 minutes was applied to produce uniform suspension. The fuel with nano additives should be used immediately after preparation to avoid any settling or for sedimentation of nanoparticles [8,9,18,19,20,21,22,23,24,25]. …”

“…The addition of 25 to 50 ppm of alumina nanoparticles (of size 51 nm) on jatropha biodiesel fuel leads to a significant improving of engine mechanical and emission performance [8]. Prabu Arockiasamy et al [9] experimentally investigated in a single cylinder DI diesel engine the effect of nanoparticle as additive in Jatropha biodiesel at 30 parts per million and the engine performance, combustion and emission characteristics were compared with neat diesel as base fuel. The results revealed that percentage reduction of NO emission by 9 %, Smoke opacity by 17 %, unburned hydrocarbon by 33 % and carbon monoxide by 20 % along with 5 % improvement in brake thermal efficiency.…”

Nano materyal içerikli katkıların yakıt özelliklerine ve motor performansına etkileri

“…Farklı türden biyodizel yakıtlara Al 2 O 3 , Fe 3 O 4 ve CeO 2 katılmasının tüm yakıt özelliklerini artırdığı yönünde çalışma sonuçları[63,64] olmakla birlikte bu katkıların özellikle tutuşma sıcaklığı ve ısıl değerde düşüşe neden olduğu yönünde[62] bulgular da mevcuttur. Kannan vd [66].…”