Influence of engine load and speed on regulated and unregulated emissions of a diesel engine fueled with diesel fuel blended with waste cooking oil biodiesel

Fuel ◽  
2016 ◽  
Vol 180 ◽  
pp. 41-49 ◽  
Author(s):  
X.J. Man ◽  
C.S. Cheung ◽  
Z. Ning ◽  
L. Wei ◽  
Z.H. Huang
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Waste Cooking Oil ◽  
Engine Load ◽  
Cooking Oil ◽  
Unregulated Emissions

Impact of Diesel-Butanol-Waste Cooking Oil Biodiesel Blends on Stationary Diesel Engine Performance and Emission Characteristics

2020 ◽  
pp. 173-192
Author(s):  
H. Sharon ◽  
Joel Jackson R. ◽  
Prabha C.
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Specific Energy Consumption ◽  
Waste Cooking Oil ◽  
Nox Emission ◽  
Performance And Emission ◽  
Cooking Oil ◽  
Fuel Blends ◽  
Hydrocarbon Emission ◽  
Smoke Opacity

Feed stock cost and NOX emission are the major barriers for commercialization of biodiesel. Waste cooking oil is well identified as one of the cheapest feed stocks for biodiesel production. This chapter reduces NOX emission of waste cooking oil biodiesel. Test fuel blends are prepared by mixing diesel (20 to 50 v/v%), butanol (5 v/v%), and waste cooking oil biodiesel (45 to 75 v/v%). Fuel properties of waste cooking oil biodiesel are enhanced due to addition of diesel and butanol. Brake specific energy consumption of the blends is higher than diesel fuel. Harmful emissions like carbon monoxide, nitrous oxide, and smoke opacity are lower for blends than diesel fuel. Increasing biodiesel concentration in blend also reduces hydrocarbon emission to a significant extent. The obtained results justify the suitability of proposed cheap blends for diesel engine emission reduction.

scholarly journals Study on Particulate Matter of Diesel Engine Using Waste Cooking Oil

2015 ◽  
Vol 773-774 ◽  
pp. 420-424 ◽  
Author(s):  
Nur Fauziah Jaharudin ◽  
Nur Atiqah Ramlan ◽  
Mohd Herzwan Hamzah ◽  
Abdul Adam Abdullah ◽  
Rizalman Mamat
Keyword(s):  
Particulate Matter ◽  
Diesel Engine ◽  
Diesel Fuel ◽  
Alternative Fuels ◽  
Engine Speed ◽  
Direct Injection ◽  
Waste Cooking Oil ◽  
Manufacturing Cost ◽  
Alternative Source ◽  
Cooking Oil

Particulate matter (PM) is one of the major pollutants emitted by diesel engine which have adverse effects on human health. Accordingly, many researches have been done to find alternative fuels that are clean and efficient. Biodiesel is preferred as an alternative source for diesel engine which produces lower PM than diesel fuel. However, the manufacturing cost of biodiesel from vegetable oil is expensive. Therefore, using waste cooking oil (WCO) for biodiesel would be more economical and sustainable solution. The characteristics of direct injection diesel engine in term of the PM have been investigated experimentally in this study. The experiments were conducted using single cylinder diesel engine with different speed (1200 rpm, 1500 rpm, 1800 rpm, 2100 rpm, 2400 rpm) at constant load. PM emission of WCO B100 and diesel fuel was compared and the effect of PM components such as soluble organic fraction (SOF) and soot were studied. The result showed WCO B100 reduces the PM emission at all engine speed. Furthermore, both fuels showed highest reduction of PM concentration at moderate engine speed of 1500 rpm.

scholarly journals Evaluation of Diesel Engine Performance and Exhaust Emission Characteristics Using Waste Cooking Oil

2015 ◽  
Vol 773-774 ◽  
pp. 425-429 ◽  
Author(s):  
Nur Atiqah Ramlan ◽  
Abdul Adam Abdullah ◽  
Mohd Herzwan Hamzah ◽  
Nur Fauziah Jaharudin ◽  
Rizalman Mamat
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fossil Fuels ◽  
Engine Speed ◽  
Engine Performance ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Exhaust Emission ◽  
Cooking Oil ◽  
Conventional Diesel Fuel

The depletion of fossil fuels as well as the rises of greenhouse gases had caused most government worldwide to follow the international energy policies for the use of biodiesel. One of the economical sources for biodiesel production is waste cooking oil. The use of waste cooking oil is more sustainable if they can perform similarly to conventional diesel fuel. This paper deals with the experimental study carried out to evaluate the engine performance and exhaust emission of diesel engine operated by biodiesel from waste cooking oil at various engine speed. The biodiesel used are known as B5, which contains of 5% of waste cooking oil and 95% of diesel fuel. The other one is B20, which contains of 20% of waste cooking oil plus 80% of diesel. Diesel was used as a comparison purposes. The results show that power and torque for B5 give the closest trend to diesel. In terms of heat release, diesel still dominates the highest value compared to B5 and B20. For exhaust emission, B5 and B20 showed improvement in the reduction of NOx and PM.

scholarly journals Diesel Engine Performance, Emissions and Combustion Characteristics of Biodiesel and Its Blends Derived from Catalytic Pyrolysis of Waste Cooking Oil

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5708
Author(s):  
Mohamed Mohamed ◽  
Chee-Keong Tan ◽  
Ali Fouda ◽  
Mohammed Saber Gad ◽  
Osayed Abu-Elyazeed ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Potassium Hydroxide ◽  
Catalytic Pyrolysis ◽  
Pyrolysis Temperature ◽  
Waste Cooking Oil ◽  
Biodiesel Fuel ◽  
Engine Load ◽  
Cooking Oil ◽  
Fuel Blends ◽  
Blend Ratios

This paper first describes a slow catalytic pyrolysis process used for synthesizing biodiesel from waste cooking oil (WCO) as a feedstock. The influence of variations in the catalyst type (sodium hydroxide and potassium hydroxide), and catalyst concentration (0.5, 1.0, 3.0, 5.0, 7.0 and 10.0% by weight) on both the pyrolysis temperature range and biodiesel yield were investigated. The results suggested that sodium hydroxide (NaOH) was more effective than potassium hydroxide (KOH) as catalysts and that the highest yield (around 70 wt.%) was observed for a NaOH concentration of about 1 wt.% The resultant pyrolysis temperature range was also significantly lower for NaOH catalyst, thus suggesting overall lower energy consumption. Compared to conventional diesel, the synthesized biodiesel exhibited relatively similar physical properties and calorific value. The biodiesel was subsequently blended with diesel fuel in different blend ratios of 0, 20, 40, 60, 80 and 100% by volume of biodiesel and were later tested in a compression ignition engine. Brake thermal efficiency and specific fuel consumption were observed to be worse with biodiesel fuel blends particularly at higher engine load above 50%. However, NOx emission generally decreased with increasing blend ratio across all engine load, with greater reduction observed at higher engine load. Similar observation can also be concluded for CO emission. In contrast, lower hydrocarbon (HC) emission from the biodiesel fuel blends was only observed for blend ratios no higher than 40%. Particulate emission from the biodiesel fuel blends did not pose an issue given its comparable smoke opacity to diesel observed during the engine test. The in-cylinder peak pressures, temperature and heat release rate of biodiesel fuel blends were lower than diesel. Overall, biodiesel fuel blends exhibited shorter ignition delays when compared to diesel fuel.

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