Analysis of cold-start NO2 and NOx emissions, and the NO2/NOx ratio in a diesel engine powered with different diesel-biodiesel blends

Zare, Ali; Stevanović, Svetlana; Jafari, Mohammad; Verma, Puneet; Babaie, Meisam; Yang, Liping; Rahman, M. F.; Ristovski, Zoran; Brown, Richard J.; Bodisco, Timothy A.

doi:10.1016/j.envpol.2021.118052

Cited by 40 publications

(13 citation statements)

References 67 publications

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“…The lower CP and PP temperatures suggest that biodiesel has better common temperature flow properties at low temperatures. Conversely, too high will cause problems such as clogging the cold filter, which will cause difficulty in cold start [133].…”

Section: Feedstocks and Properties Of Second-generation Biodieselmentioning

confidence: 99%

A Comprehensive Review of the Properties, Performance, Combustion, and Emissions of the Diesel Engine Fueled with Different Generations of Biodiesel

Zhang

Zhong

et al. 2022

Processes

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Due to the increasing air pollution from diesel engines and the shortage of conventional fossil fuels, many experimental and numerical types of research have been carried out and published in the literature over the past few decades to find a new, sustainable, and alternative fuels. Biodiesel is an appropriate alternate solution for diesel engines because it is renewable, non-toxic, and eco-friendly. According to the European Academies Science Advisory Council, biodiesel evolution is broadly classified into four generations. This paper provides a comprehensive review of the production, properties, combustion, performance, and emission characteristics of diesel engines using different generations of biodiesel as an alternative fuel to replace fossil-based diesel and summarizes the primary feedstocks and properties of different generations of biodiesel compared with diesel. The general impression is that the use of different generations of biodiesel decreased 30% CO, 50% HC, and 70% smoke emissions compared with diesel. Engine performance is slightly decreased by an average of 3.13%, 89.56%, and 11.98% for higher density, viscosity, and cetane, respectively, while having a 7.96% lower heating value compared with diesel. A certain ratio of biodiesel as fuel instead of fossil diesel combined with advanced after-treatment technology is the main trend of future diesel engine development.

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Section: Feedstocks and Properties Of Second-generation Biodieselmentioning

confidence: 99%

A Comprehensive Review of the Properties, Performance, Combustion, and Emissions of the Diesel Engine Fueled with Different Generations of Biodiesel

Zhang

Zhong

et al. 2022

Processes

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“…The NO 2 emissions of diesel were much greater than those of B10 and B20 fuel blends. 16 Moreover, water-in-oil emulsion fuel composed of a small droplet of water in diesel and biodiesel, known as diesel−biodiesel−water blends, can reduce the NO x emissions, carbon dioxide (CO 2 ), and HC emissions. 17 The water content is added as an internal phase emulsion to the diesel and biodiesel fuel blends.…”

Section: Introductionmentioning

confidence: 99%

“…The cold operating phase resulted in 1.14–2.42 times higher NO 2 emissions than the hot operation period. The NO 2 emissions of diesel were much greater than those of B10 and B20 fuel blends . Moreover, water-in-oil emulsion fuel composed of a small droplet of water in diesel and biodiesel, known as diesel–biodiesel–water blends, can reduce the NO x emissions, carbon dioxide (CO 2 ), and HC emissions .…”

Section: Introductionmentioning

confidence: 99%

Diesel–Biodiesel–Water Fuel Nanoemulsions for Direct Injection and Indirect Injection Diesel Engines: Performance and Emission Characteristics

Thawornprasert

Intaprom

et al. 2022

ACS Omega

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An experimental research is assessed to examine the engine performance and exhaust emissions of direct injection (DI) and indirect injection diesel (IDI) engines fueled with petroleum diesel, biodiesel, and nanoemulsion fuel. The nanoemulsion fuel was produced using a hydrodynamic cavitation reactor. These three fuels were used to study the exhaust emissions, brake power, brake specific fuel consumption (BSFC), brake thermal efficiency (BTE), and exhaust gas temperature at engine speeds ranging from 1100, 1400, 1700, 2000, and 2300 rpm with engine loads of 25, 50, and 75%. Furthermore, three fuels were burned in two types of combustion engines such as DI and IDI diesel engines under identical conditions. The finding showed that using DI and IDI engines influenced the magnitude of emissions as well as the performance with different speeds and loads. By comparing the performance of DI and IDI engines at a maximum engine load of 75%, the most concerning parameter among the efficiency of an engine of BTE of diesel, biodiesel, and nanoemulsion fuel from the DI engine was higher at 24.19, 24.83, and 20.76%, respectively, than that of the IDI engine at 2300 rpm engine speed. At the maximum load and speed of engines, the BSFC of diesel, biodiesel, and nanoemulsion fuel in the DI engine were 4.44, 23.73, and 20% lower than in the IDI engine, respectively. Emission results of the DI and IDI engines were analyzed at 75% load and 2300 rpm speed. The results demonstrated that emissions of NO x from nanoemulsion fuel from the IDI engine was significantly reduced by 82.46% when the values were compared to the DI engine. In terms of CO emissions, the IDI engine emits significantly less than the DI diesel engine. The CO emissions of diesel, biodiesel, and nanoemulsion fuel in the IDI engine were 69.02, 28.95, and 48.75% lower than those in the DI engine, respectively. The studies conclude that the emissions from IDI engines clearly show that pollution from exhaust emissions can be reduced to a low level compared to the DI engine. However, when high-performance engines are considered, the DI engine is recommended rather than the IDI engine.

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“…However, the use of biofuel increases the chemical wear of the materials of diesel engine parts, since it is more aggressive than conventional diesel fuel [25,26]. This leads to a decrease in the diesel engine resource, which was considered in [27][28][29]. However, the authors of these works did not provide the degree of quantitative assessment in the reduction in engine life, which was most significantly (up to 50%) influenced by the fuel system.…”

Section: Introductionmentioning

confidence: 99%

“…Another important aspect of the use of biofuels is the impact on the environment. Considering the environmental aspects of using biological fuel, researchers have come to the conclusion that such a fuel is more environmentally friendly than diesel fuel [28]. However, the presence of a large amount of methanol in it leads to the decomposition of the materials of the fuel system elements, which reduces the service life of the equipment.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Diesel Engine Fuel Systems Reliability When Operating on Biofuels

et al. 2022

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One of the main trends in the development of modern engine building is the use of biodiesel fuel, which can lead to a decrease in the reliability of engines that are not adapted to it. However, at present there is no general method for determining the reliability of fuel systems of internal combustion engines. In this paper, a reliability model of engine fuel systems when operating on biofuel has been developed. Comprehensive indicators for assessing the reliability of diesel engine fuel systems are the coefficient of readiness and technical use. The availability factor of the fuel system when operating on biodiesel fuel without the replacement of structural materials was 0.66, while with the replacement it was 0.71, and the coefficient of technical utilization without replacement of materials was 0.36, and with the replacement of 0.4. Recommendations are given to improve the reliability of the engine fuel system components. The resulting model allows for complex comparisons of the effectiveness of various ways to improve the reliability of engines running on biodiesel fuel.

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Analysis of cold-start NO2 and NOx emissions, and the NO2/NOx ratio in a diesel engine powered with different diesel-biodiesel blends

Cited by 40 publications

References 67 publications

A Comprehensive Review of the Properties, Performance, Combustion, and Emissions of the Diesel Engine Fueled with Different Generations of Biodiesel

A Comprehensive Review of the Properties, Performance, Combustion, and Emissions of the Diesel Engine Fueled with Different Generations of Biodiesel

Diesel–Biodiesel–Water Fuel Nanoemulsions for Direct Injection and Indirect Injection Diesel Engines: Performance and Emission Characteristics

Modeling of Diesel Engine Fuel Systems Reliability When Operating on Biofuels

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