Experimental investigation of oxygen enrichment on performance of twin cylinder diesel engine with variation of injection pressure
10 Apr 2013-pp 682-687
TL;DR: In this paper, the impact of oxygen enrichment of the inlet air has been examined in laboratory tests on a direct injection diesel engines to study the combustion efficiency, power and performance of the engine.
Abstract: The impact of oxygen enrichment of the inlet air have been examined in laboratory tests on a direct injection diesel engines to study the combustion efficiency, power and performance of the engine. Increasing the oxygen content with the air leads to faster burn rates and also the ability to burn more fuel at the same stoichiometry. Added pure oxygen in the combustion air also leads to shorter ignition delays and offers more potential for complete burning of diesel. The experiment was carried out at different oxygen percentages using regulated oxygen induction from oxygen cylinder. Performance test was carried out in the twin cylinder engine for different loads and with various injection pressures. The results show that there is considerable improvement in power output and thermal efficiency of the engine with increased oxygen concentration and injection pressure while NOx emission increased pro rata with the oxygen added.
Citations
More filters
TL;DR: In this paper, an artificial neural network (ANN) model with the capability to estimate the experimental results, its performance was tested and an increase of 17.14% and 21.90% was observed, respectively.
5 citations
TL;DR: In this paper , the authors evaluated the application of oxygen enrichment in the hydrogen-fueled WRE and found that within the test range, oxygen enrichment can effectively improve the brake torque, however, penalize the brake thermal efficiency and NO emission.
1 citations
01 Aug 2022
TL;DR: In this paper , a 3D-printed plasmonic sensor has been used for point-of-care tests and environmental monitoring, and numerical and experimental results have demonstrated that the sensor's sensitivity improves when the proposed metals bilayer is used instead of a gold layer.
Abstract: The design, development, and testing of a 3D-printed plasmonic sensor has been here presented. A silver and gold bilayer has been deposited on a polymer waveguide to improve the performance of the surface plasmon resonance (SPR) sensor. The developed SPR sensor is very simple to realize, small-size, low-cost, and its sensitivity is sufficient to realize biosensors, exploiting specific receptors in contact with the sensing bilayer. Therefore, the proposed sensing approach could be used to make disposable sensor chips for several application fields, e.g. point-of-care tests and environmental monitoring. Furthermore, numerical and experimental results have demonstrated that the sensor's sensitivity improves when the proposed metals bilayer is used instead of a gold layer.
1 citations
23 Jan 2023
TL;DR: In this article , a fingerprint-based voting system has been proposed, in which fingerprints are collected during enrollment phase, and it will be verified during polling, the voter has to place his finger to register, that data will be stored in software.
Abstract: Elections are very important to decide country’s future. Manual voting system have many consequences, to overcome these problems implementing biometric voting machine in society diminish problems. Hence, a flngerprint-based voting system has been proposed in this paper. Every person has unparalleled identity by using this bit new system works. In this proposed system, fingerprints are collected during enrollment phase, and it will be verified during polling. For this purpose, the hardware component Arduino Uno has utilized in this work. The Adafruit library tells the sensor to read fingerprints, store them as “templates”. The voter has to place his finger to register, that data will be stored in software. Persons who had registered or already existed in list can have access to cast their vote by placing their fingerprint. If any person tries to fake their vote by casting second time or nonregistered the buzzer rings. By this change voting system get rid of some issues.
01 Aug 2022
TL;DR: In this article , a 3D-printed plasmonic sensor has been used for point-of-care tests and environmental monitoring, and numerical and experimental results have demonstrated that the sensor's sensitivity improves when the proposed metals bilayer is used instead of a gold layer.
Abstract: The design, development, and testing of a 3D-printed plasmonic sensor has been here presented. A silver and gold bilayer has been deposited on a polymer waveguide to improve the performance of the surface plasmon resonance (SPR) sensor. The developed SPR sensor is very simple to realize, small-size, low-cost, and its sensitivity is sufficient to realize biosensors, exploiting specific receptors in contact with the sensing bilayer. Therefore, the proposed sensing approach could be used to make disposable sensor chips for several application fields, e.g. point-of-care tests and environmental monitoring. Furthermore, numerical and experimental results have demonstrated that the sensor's sensitivity improves when the proposed metals bilayer is used instead of a gold layer.
References
More filters
Book•
01 Jan 1988
TL;DR: In this article, the authors describe real engine flow and combustion processes, as well as engine operating characteristics and their operation, including engine design and operating parameters, engine characteristics, and operating characteristics.
Abstract: 1 Engine Types and Their Operations 2 Engine Design and Operating Parameters 3 Thermochemistry of Fuel-Air Mixtures 4 Properties of Working Fluids 5 Ideal Models of Engine Cycles 6 Gas Exchange Processes 7 SI Engine Fuel Metering and Manifold Phenomena 8 Charge Motion within the Cylinder 9 Combustion in Ignition Engines 10 Combustion in Compression Ignition Engines 11 Pollutant Formation and Control 12 Engine Heat Transfer 13 Engine Friction and Lubrication 14 Modeling Real Engine Flow and Combustion Processes 15 Engine Operating Characteristics Appendixes
14,372 citations
TL;DR: In this article, the authors compared the relative effect of two oxygen addition methods on diesel emission and combustion: (1) oxygen enrichment of the intake air and oxygenation of the fuel, and (2) fuel oxygenation via linear structure oxygenated molecules.
Abstract: Among continuing efforts to develop low-emission combustion engines, oxygen-enhanced combustion has long been considered a promising approach. A number of investigations have focused on the effects of oxygen addition on soot formation and oxidation by using various oxygen introduction techniques, such as blending different oxygen-containing fuels or direct oxygen addition into the intake air stream. The present study of oxygen addition was performed on a Volkswagen 1.9 L “TDI” turbodiesel engine to investigate and compare the relative effect of two oxygen addition methods on diesel emission and combustion: oxygen enrichment of the intake air and oxygenation of the fuel. The oxygen enrichment was accomplished by connecting an oxygen generator to the intake air surge tank, while fuel oxygenation was accomplished using two compounds with different cetane number and molecular structure. The key observations are that both intake oxygen enrichment and fuel oxygenation via linear structure oxygenated molecules ...
116 citations
"Experimental investigation of oxyge..." refers background in this paper
...A number of analytical and experimental studies [1-12] have demonstrated the benefits of using oxygen enhanced...
[...]
86 citations
"Experimental investigation of oxyge..." refers background in this paper
...A number of analytical and experimental studies [1-12] have demonstrated the benefits of using oxygen enhanced...
[...]
...The combustion of hydrocarbon fuel can be enhanced by supplying extra oxygen, which is known as Oxygen-enhanced combustion, it increases the flame velocity, flame temperature, lean flammability limit, flame stability, and available energy [8]....
[...]
11 Apr 2005
37 citations
01 Mar 1993
23 citations
"Experimental investigation of oxyge..." refers background in this paper
...A number of analytical and experimental studies [1-12] have demonstrated the benefits of using oxygen enhanced...
[...]
...Oxygen enrichment can also helps in running the engine in leaner mixture [2]....
[...]