Application of waste cooking oil (WCO) biodiesel in a compression ignition engine

Hwang, Joonsik; Bae, Choongsik; Gupta, Tarun

doi:10.1016/j.fuel.2016.02.058

Cited by 84 publications

(40 citation statements)

References 34 publications

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“…This may be because WCO biodiesel has a high oxygen content, which leads to more complete combustion (Enweremadu & Rutto, ; Gopal et al., ). Similar results were obtained by Hwang, Bae, and Gupta (). The origin of the biodiesel is not a factor in HC emissions, although WCO methyl esters showed lower emission than WCO ethyl esters (Enweremadu & Rutto, ).…”

Section: Performance Of Biodiesel As a Fuelsupporting

confidence: 91%

“…Hwang et al. () investigated the combustion characteristics of WCO biodiesel and observed that the WCO biodiesel exhibited relatively longer injection delay than diesel due to higher viscosity. In addition, WCO biodiesel had a longer liquid tip penetration length and narrower spray angle regardless of fuel injection pressure.…”

Section: Performance Of Biodiesel As a Fuelmentioning

confidence: 99%

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Production, engine performance, combustion, emission characteristics and economic feasibility of biodiesel from waste cooking oil: A review

Rekhate

Prajapati

2019

Environmental Quality Mgmt

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The depletion of fossil fuel reserves and increasing demands for diesel are considered to be important triggers for many of the initiatives that have been taken to search for possible sources for the production of biodiesel from materials available within the country. It is possible to produce biodiesel from waste/used cooking oils (WCO) that is comparable in quality to that of fresh vegetable oil. Not only does reuse of WCO, which can otherwise harm human health, reduce the burden on the government of treating oily wastewater, disposing of the waste, and maintaining public sewers, it also significantly lowers the production cost of biodiesel. In the process of frying, oil undergoes many reactions, leading to the formation of a number of undesirable compounds, such as polymers, free fatty acids, and many other chemicals. This poses challenges in the transesterification of WCO. This article covers different techniques in the production of biodiesel from WCO.It also compares combustion, emissions, and engine performance characteristics of biodiesel from WCO as well as factors affecting biodiesel production from WCO and its economic feasibility. K E Y W O R D S

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Section: Performance Of Biodiesel As a Fuelsupporting

confidence: 91%

Section: Performance Of Biodiesel As a Fuelmentioning

confidence: 99%

Production, engine performance, combustion, emission characteristics and economic feasibility of biodiesel from waste cooking oil: A review

Rekhate

Prajapati

2019

Environmental Quality Mgmt

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“…The higher density and viscosity of WCO blends as regards diesel oil are responsible for a variation of the injection process (smaller spray angle, larger droplet size, and fuel penetration length). Studies [12,28] report that the injection setting has also a significant role in particle emission. Furthermore, the higher cetane number of WCO as regards diesel fuel causes a reduction in ignition delay and an increase in the mixing-controlled combustion duration.…”

Section: Improvement Trends For Internal Combustion Engines 28mentioning

confidence: 99%

“…They found more particles with larger size at lower engine speed; primary particles tend to form at lower engine load. Hwang et al [28] investigated the combustion and emission characteristics of WCO and conventional diesel fuel in an optically accessible diesel engine. WCO had the benefits in CO, HC, and PM reduction at low load.…”

Section: Introductionmentioning

confidence: 99%

Effect of Waste Cooking Oil Biodiesel Blends on Performance and Emissions from a CRDI Diesel Engine

Chiatti¹,

Chiavola²,

Recco³

2018

Improvement Trends for Internal Combustion Engines

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The employment of biofuels in blends with diesel oil proved to attain a reduced environmental impact without compromising the engine performance. Among biofuels, waste cooking oil offers the advantages of its reduced raw material cost in comparison with fresh vegetable oil cost; it also eliminates the environmental impacts caused by its disposal. Although a great number of researches has been devoted to biodiesel combustion in engines and pollutant emissions, few studies can be found on light duty diesel engine equipped with up-to-date technologies. This work aims at investigating the impact of waste cooking oil percentage in blends with diesel oil on the performance and emission characteristics of an up-to-date light and compact common rail diesel engine whose main application is in microcars and in urban vehicles. A comprehensive experimental activity was performed in the engine complete operative field. The comparison of the results with those obtained with standard ultralow-sulfur diesel highlighted that the engine performance was quite similar for B20 and diesel oil. B40 suffered for the lower caloric value in regard to diesel. A reduction in CO and HC was obtained with biodiesel blends, along with an increase in NO x . Particulate emissions were also reduced for biodiesel blends; the mean size of particles was smaller as regards diesel oil.

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“…Thus, chemical delay decreased with an increase in ambient temperature. The other reason for the decrease in ignition delays with high ambient temperatures might be because the faster mixing rate resulted from faster fuel evaporation due to hot surface inside combustion chamber [38]. The impingement of the spray on the hot surface will affect the fuel evaporation and fuel-air mixing processes.…”

Section: Effects Of Injection Pressure On Ignition Delaymentioning

confidence: 99%

Effects of ambient temperature and injection pressure on biodiesel ignition delay

Jaat¹,

Khalid²,

Andsaler³

et al. 2017

J. MECH. ENG. SCI.

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Biodiesels are promoted as alternative fuels due to their potential to reduce dependency on fossil fuels. The main problem in diesel combustion chamber design is to understand the importance of interaction phenomenon between fuel spray and surrounding gas prior to ignition. Rapid compression machine (RCM) is widely used to acquire experimental insights into fuel autoignition at conditions relevant to the current and future combustion technologies. An experimental study of the measurement of ignition delay characteristics of diesel and blended biodiesel fuels in the RCM was carried out. The objective of this study is to investigate the effects of various ambient temperature, Ti and injection pressure, Pinj on ignition delay with different fuels used. This present study used the ignition delay of 5vol%, 10vol%, and 15vol% blending of palm oil methyl ester with a standard diesel as fuels in diesel engines called as B5, B10, and B15. The diesel fuel was blended with the biodiesel fuels at different fuel mixture blends. The injection pressure chosen was from 80 MPa to 140 MPa while an ambient temperature of RCM varied from 750 K to 950 K. The results showed that for all tested fuels, the reduction in ignition delay increased with the increase in ambient temperature and injection pressure. The palm oil biodiesel had higher density, viscosity, and cetane number, facilitated the shortest ignition delay when compared to the diesel fuel under all ambient temperatures and injection pressures. The fuel oxygen content in the biodiesel fuel also played a greater role in decreasing the ignition delay.

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Application of waste cooking oil (WCO) biodiesel in a compression ignition engine

Cited by 84 publications

References 34 publications

Production, engine performance, combustion, emission characteristics and economic feasibility of biodiesel from waste cooking oil: A review

Production, engine performance, combustion, emission characteristics and economic feasibility of biodiesel from waste cooking oil: A review

Effect of Waste Cooking Oil Biodiesel Blends on Performance and Emissions from a CRDI Diesel Engine

Effects of ambient temperature and injection pressure on biodiesel ignition delay

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