Experimental investigation of the effect of urea addition to fuel on engine performance and emissions in diesel engines

Demir, Üsame; Kozan, Avni; Özer, Salih

doi:10.1016/j.fuel.2021.122578

Cited by 21 publications

(11 citation statements)

References 45 publications

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“…Depending on the engine load, an increase in the exhaust gas temperature was observed as in other studies 35–39 . However, the increase in the advance angle also increased the exhaust gas temperature.…”

Section: Resultssupporting

confidence: 70%

“…In CI engines, fuel that is not injected at the appropriate Depending on the engine load, an increase in the exhaust gas temperature was observed as in other studies. [35][36][37][38][39] However, the increase in the advance angle also increased the exhaust gas tempera- ture. Due to the air cooling of the test engine, the increase in the advance angle causes the engine to warm up more quickly and the efficient working time to be shortened.…”

Section: Volumetric Efficiencymentioning

confidence: 99%

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Investigation of the effect of advance angle on performance and emissions (exhaust, vibration, noise) in a single‐cylinder diesel engine whose fuel system is converted to common rail

Gültekin,

Ciniviz

2023

Env Prog and Sustain Energy

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In diesel engines, the most important parameter affecting the combustion performance is the injection advance. Since the injection advance directly affects the combustion quality, it also directly affects the outputs, such as ignition delay, in‐cylinder pressure, fuel consumption, and emission values. Therefore, setting the advance angle correctly is exceedingly significant for the optimum operation of the engine in all conditions. In this study, a single‐cylinder diesel engine with a mechanical fuel system was converted to a common rail fuel system by revising its fuel system. Experiments were carried out with the converted engine at a constant speed (1850 rpm), at different loads (3–4.5–6–7.5–9 Nm), and at different advance angles (10, 12, 14, 16, 18°). In the experiments, engine performance and emission (exhaust, vibration, noise) data were examined. When the cylinder pressure data is evaluated, the maximum in‐cylinder pressure approaches the top dead point in parallel with the increase in the advance angle. Specific fuel consumption occurred at a minimum advance angle of 10° under all load conditions. In exhaust emissions, minimum values at 10° advance angle were obtained for all emissions except for oxygen emissions. Vibration emissions were reduced by 6% at a 10° advancing angle compared to 18° advancing angle at 3 Nm load. It was determined that noise emissions decreased by 1.76% in the same experimental parameters. When all data are evaluated, the optimum advance angle for the revised fuel system has been determined as 10°.

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Section: Resultssupporting

confidence: 70%

Section: Volumetric Efficiencymentioning

confidence: 99%

Investigation of the effect of advance angle on performance and emissions (exhaust, vibration, noise) in a single‐cylinder diesel engine whose fuel system is converted to common rail

Gültekin,

Ciniviz

2023

Env Prog and Sustain Energy

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“…Half of the global population depends on fertiliser nitrogen for access to sufficient food (Dawson & Hilton, 2011). Urea and ammonium are important sources of N for plants and important molecules for the emerging hydrogen economy (Lan et al ., 2012), and urea is an important additive influencing diesel engine emissions (Demir et al ., 2022). P and Fe are essential plant nutrients and used in lithium–iron–phosphorus batteries (Roy et al ., 2022).…”

Section: Bioengineering Selective Membrane Separation Technologiesmentioning

confidence: 99%

Molecular membrane separation: plants inspire new technologies

et al. 2023

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Plants draw up their surrounding soil solution to gain water and nutrients required for growth, development and reproduction. Obtaining adequate water and nutrients involves taking up both desired and undesired elements from the soil solution and separating resources from waste. Desirable and undesirable elements in the soil solution can share similar chemical properties, such as size and charge. Plants use membrane separation mechanisms to distinguish between different molecules that have similar chemical properties. Membrane separation enables distribution or retention of resources and efflux or compartmentation of waste. Plants use specialised membrane separation mechanisms to adapt to challenging soil solution compositions and distinguish between resources and waste. Coordination and regulation of these mechanisms between different tissues, cell types and subcellular membranes supports plant nutrition, environmental stress tolerance and energy management. This review considers membrane separation mechanisms in plants that contribute to specialised separation processes and highlights mechanisms of interest for engineering plants with enhanced performance in challenging conditions and for inspiring the development of novel industrial membrane separation technologies. Knowledge gained from studying plant membrane separation mechanisms can be applied to developing precision separation technologies. Separation technologies are needed for harvesting resources from industrial wastes and transitioning to a circular green economy.

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“…It is also stated that the energy content of butanol added to diesel fuel is high, and it causes less wear in the cylinders. In the experimental study conducted by Demir et al (2022), the effects of adding water, urea, and citric as additives to diesel fuel were investigated. Recently, selective catalytic reactor and AdBlue injection systems have been preferred to reduce NOx emissions due to emission limitations on diesel engines.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effects of Using Low Sulfur and Rural Diesel as Diesel Fuel in Tractors on Engine/emissions

Akal¹

2022

IJIAAR

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Energy is one of the main factors that ensure the formation of production, development, and economic conditions between countries. Although fossil fuels pose some problems in terms of the environment and human health, they still have great use in meeting the energy demand in the world. Although there are many studies on alternative fuels in today's conditions, diesel engines are more preferred by the countries in heavy-duty vehicles (construction machines, tractors, and combine harvesters) operating in all kinds of commercial and land conditions that are used in transportation. Diesel engines are more preferred in developing countries due to their high torque and low fuel consumption. For this reason, efficiency, operating parameters, and reducing the environmental emissions of diesel engines used in our country are important. Since agriculture is one of the most important fields of activity in our country, in this study, the engine's characteristics and the effects on the exhaust emissions of the rural diesel used in the tractor and the low-sulfur diesel fuel were experimentally investigated. The maximum torque (1400rpm) used during the field plow of the tractor, which is available in Çerkezköy Hattat Tractor Factory R&D Center, and the maximum power (2100rpm) under other driving conditions were tested with both diesel fuels. When the results of the experiments were compared, it was seen that higher torque and power were obtained with the use of low sulfur diesel fuel, while harmful exhaust emissions were lower than rural diesel fuel. However, when the engine's fuel consumption is compared, it has been determined that rural diesel is consumed less than low sulfur diesel.

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Experimental investigation of the effect of urea addition to fuel on engine performance and emissions in diesel engines

Cited by 21 publications

References 45 publications

Investigation of the effect of advance angle on performance and emissions (exhaust, vibration, noise) in a single‐cylinder diesel engine whose fuel system is converted to common rail

Investigation of the effect of advance angle on performance and emissions (exhaust, vibration, noise) in a single‐cylinder diesel engine whose fuel system is converted to common rail

Molecular membrane separation: plants inspire new technologies

Investigation of the Effects of Using Low Sulfur and Rural Diesel as Diesel Fuel in Tractors on Engine/emissions

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