Influence of fuel-borne oxygen on European Stationary Cycle: Diesel engine performance and emissions with a special emphasis on particulate and NO emissions

Nabi, Nurun; Zare, Ali; Hossain, Farhad M.; Rahman, Mostafizur; Bodisco, Timothy A.; Ristovski, Zoran; Brown, Richard

doi:10.1016/j.enconman.2016.09.010

Cited by 42 publications

(15 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As expected, the PN is inversely proportional to NO x emission. The outcomes achieved are consistent with previous issues announced in [32,75]. Nabi et al [75] found that the PN was oppositely relative to NO, with a very high correlation coefficient.…”

Section: Gaseous Emission Characteristicssupporting

confidence: 80%

See 1 more Smart Citation

Particulate Matter and Gaseous Emission of Hydrous Ethanol Gasoline Blends Fuel in a Port Injection Gasoline Engine

et al. 2017

View full text Add to dashboard Cite

Abstract:The industrialization that increases day by day needs more and more power/fuel sources that are commonly available, abundant, renewable, and environmentally friendly. Recently, nearly all of the cities in China (PRC) have been influenced by haze. However, the pollutants from automobiles have always been seriously considered to be the main contamination causes of the haze and that influence human health. This study concerns the impact of hydrous ethanol on in-cylinder pressure, particulate matter (PM), and gaseous emissions (oxides of nitrogen (NO x ) and unburned hydrocarbon (HC)) from a port fuel injection (PFI) gasoline engine. Tests were conducted on a four-cylinder port injection gasoline engine at different engine loads at an engine speed of 2000 rev/min for commercial gasoline, hydrous ethanol-gasoline blends (10% and 20% hydrous ethanol by volume), and an anhydrous ethanol-gasoline blend (20% anhydrous ethanol by volume). The results show that the peak in-cylinder pressure with the use of gasoline was the highest compared with the hydrous ethanol and anhydrous ethanol blends. Compared with the anhydrous ethanol blend, the hydrous ethanol blends performed well at a high load condition, equivalent to a low load. In addition, the total particulate number (PN) declines with an increase in engine operating loads for all of the fuels tested. The outcome of this study is an important reduction in PM number, mass emissions, and mean diameters of particles as the use of hydrous ethanol blends increases, while the form of the particulate size distribution remains the same. Furthermore, the NO x emission is raised with a rise in engine load, and NO x and HC emissions are reduced with the use of hydrous ethanol and anhydrous ethanol blend as equated with pure gasoline. Moreover, the correlation between the total particle number against NO x and HC has been found; the number of particles increases when the NO x emission decreases, and the opposite trend is exhibited for the HC emission. Therefore, it can be concluded that hydrous ethanol blends look to be a good selection for PM, NO x , and HC reduction for gasoline engines.

show abstract

Section: Gaseous Emission Characteristicssupporting

confidence: 80%

“…The outcomes achieved are consistent with previous issues announced in [32,75]. Nabi et al [75] found that the PN was oppositely relative to NO, with a very high correlation coefficient. Hydrous ethanol blends showed the lowest PN concentration and the lowest NO x than those of the anhydrous ethanol blend and gasoline.…”

Section: Gaseous Emission Characteristicssupporting

confidence: 80%

Particulate Matter and Gaseous Emission of Hydrous Ethanol Gasoline Blends Fuel in a Port Injection Gasoline Engine

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Another reason for higher NOx emissions with both DOP blends is the presence of fuel oxygen in their molecules. This excess oxygen can contribute to higher NOx emissions with the DOP blends [29]. CO is a useful marker for in-cylinder combustion quality.…”

Section: Exhaust Emissionsmentioning

confidence: 99%

Experimental Investigation of Diesel Engine Performance, Combustion and Emissions Using a Novel Series of Dioctyl Phthalate (DOP) Biofuels Derived from Microalgae

et al. 2019

Self Cite

View full text Add to dashboard Cite

Physico-chemical properties of microalgae biodiesel depend on the microalgae species and oil extraction method. Dioctyl phthalate (DOP) is a clear, colourless and viscous liquid as a plasticizer. It is used in the processing of polyvinyl chloride (PVC) resin and polymers. A new potential biofuel, hydrothermally liquefied microalgae bio-oil can contain nearly 11% (by mass) of DOP. This study investigated the feasibility of using up to 20% DOP blended in 80% diesel fuel (v/v) in an existing diesel engine, and assessed the performance and exhaust emissions. Despite reasonable differences in density, viscosity, surface tension, and boiling point, blends of DOP and diesel fuel were found to be entirely miscible and no separation was observed at any stage during prolonged miscibility tests. The engine test study found a slight decrease in peak cylinder pressure, brake, and indicated mean effective pressure, indicated power, brake power, and indicated and brake thermal efficiency with DOP blended fuels, where the specific fuel consumption increased. This is due to the presence of 16.4% oxygen in neat DOP, responsible for the relatively lower heating value, compared to that of diesel. The emission tests revealed a slight increase in nitrogen oxides (NOx) and carbon monoxide (CO) emissions from DOP blended fuels. However, particulate matter (PM) emissions were lower from DOP blended fuels, although some inconsistency in particle number (PN) was present among different engine loads.

show abstract

“…Fuel oxygen content has been introduced as an influential factor in engine performance and emissions [20][21][22][23][24][25]. Song et al [23] investigated the effect of oxygen content on combustion in single-and multi-cylinder diesel engines using rapeseed biodiesel to vary the oxygen content of the diesel used.…”

Section: Introductionmentioning

confidence: 99%

“…This is seen in a further study by Zare et al [20], considering the performance and emissions of waste cooking biodiesel blends whose oxygen content was increased with the addition of triacetin. In previous studies with the same engine and fuels, engine performance and emissions (such as NOx and PM) has been reported during modal cycles [22], steady-state and transient operation [21,29] and cold start operation [30]. Compared to diesel with no oxygen content, when it comes to alternative fuels in the market, fuel oxygen content will be an important fuel properties which significantly affects the engine performance and emissions.…”

Section: Introductionmentioning

confidence: 99%

Exergy analysis of a diesel engine with waste cooking biodiesel and triacetin

Odibi

Babaie

Zare

et al. 2019

Energy Conversion and Management

Self Cite

View full text Add to dashboard Cite

This study uses the first and second laws of thermodynamics to investigate the effect of oxygenated fuels on the quality and quantity of energy in a turbo-charged, common-rail sixcylinder diesel engine. This work was performed using a range of fuel oxygen content based on diesel, waste cooking biodiesel, and a triacetin. The experimental engine performance and emission data was collected at 12 engine operating modes. Energy and exergy parameters were calculated, and results showed that the use of oxygenated fuels can improve the thermal efficiency leading to lower exhaust energy loss. Waste cooking biodiesel (B100) exhibited the lowest exhaust loss fraction and highest thermal efficiency (up to 6% higher than diesel). Considering the exergy analysis, lower exhaust temperatures obtained with oxygenated fuels resulted in lower exhaust exergy loss (down to 80%) and higher exergetic efficiency (up to 10%). Since the investigated fuels were oxygenated, this study used the oxygen ratio (OR) instead of the equivalence ratio to provide a better understanding of the concept. The OR has increased with decreasing engine load and increasing engine speed. Increasing the OR decreased the fuel exergy, exhaust exergy and destruction efficiency. With the use of B100, there was a very high exergy destruction (up to 55%), which was seen to decrease with the addition of triacetin (down to 29%).

show abstract

Influence of fuel-borne oxygen on European Stationary Cycle: Diesel engine performance and emissions with a special emphasis on particulate and NO emissions

Cited by 42 publications

References 50 publications

Particulate Matter and Gaseous Emission of Hydrous Ethanol Gasoline Blends Fuel in a Port Injection Gasoline Engine

Particulate Matter and Gaseous Emission of Hydrous Ethanol Gasoline Blends Fuel in a Port Injection Gasoline Engine

Experimental Investigation of Diesel Engine Performance, Combustion and Emissions Using a Novel Series of Dioctyl Phthalate (DOP) Biofuels Derived from Microalgae

Exergy analysis of a diesel engine with waste cooking biodiesel and triacetin

Contact Info

Product

Resources

About