Effects of fuel combination and IVO timing on combustion and emissions of a dual-fuel HCCI combustion engine

Liang, Xin; Zhang, Jianyong; Li, Zhongzhao; Zhang, Jiabo; Huang, Zhen; Han, Dong

doi:10.1007/s11708-020-0698-8

Cited by 10 publications

(4 citation statements)

References 32 publications

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“…The second-order polynomial equations for HC are given in the Figure 6 highlights the variations of CO2 emission and brake power. The product of the hydrocarbon fuel itself is carbon dioxide which measures the successful oxidation of the carbon atoms (Ashok et al 2018;Liang et al 2020;Senthil and Thirumalini 2020). Therefore, the fuel with higher oxygen content can produce more amount of carbon dioxide.…”

Section: Hydrocarbonmentioning

confidence: 99%

“…The mixing of camphor oil with Karanja oil suppress the effects of viscosity of Karanja oil. But on the other hand, the addition of camphor oil supported proper oxidation of diesel by supplying the additional oxygen (Ashok et al 2018;Liang et al 2020;Senthil and Thirumalini 2020). The second-order polynomial equations for CO2 are given in the table.…”

Section: Hydrocarbonmentioning

confidence: 99%

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Numerical and experimental investigation of exergy, performance, emissions, combustion characteristics, and cyclic variations of CI engine fueled Karanja oil blended camphor oil and diesel blended camphor oil.

Gurusamy,

Subramaniyan,

Ponnusamy

2023

Preprint

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This article compares the influence of the blending the low-viscous oxygenated camphor oil with hydrocarbon diesel fuel and high viscous oxygenated Karanja oil. The experiment is conducted in a four-stroke 1-cylinder naturally aspirated Kirloskar compression ignition (CI) engine coupled with an eddy current dynamometer. The three types of fuel blends are prepared by blending the camphor oil with Karanja oil on the volume ratio of 30:70 (C30K70), 50:50 (C50K50), and 70:30 (C70K30), and the other three types of fuels are prepared by blending the camphor oil with diesel on the volume ratio of 30:70 (C30D70), 50:50 (C50D50), and 70:30 (C70D30). The results reveal improvement in the engine performance characteristics of the brake thermal efficiency and brake specific energy consumptions due to the blending of camphor oil either with hydrocarbon diesel fuel or Karanja oil. Further, it also reduces the CO, HC, and smoke emissions with an increase in NO and CO2 emissions. The rate of pressure rise, net heat release rate and cyclic irregularities found to increase with increase in proportion of the camphor oil. The P-v diagram also confirms the lower heat addition period for the C70D30 and C70K30 with an increase in brake thermal efficiency. The actual compression ratio and the actual cut-off ratio are found to have a reasonable correlation with the thermal efficiency of the engine. Second-order polynomial equations were obtained for the engine characteristics using the Curve fitting method, and the characteristic equations confirmed the confidence level of 95%.

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Section: Hydrocarbonmentioning

confidence: 99%

Section: Hydrocarbonmentioning

confidence: 99%

Numerical and experimental investigation of exergy, performance, emissions, combustion characteristics, and cyclic variations of CI engine fueled Karanja oil blended camphor oil and diesel blended camphor oil.

Gurusamy,

Subramaniyan,

Ponnusamy

2023

Preprint

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“…New ignition methods are among the many options presented in this direction, and HCCI, 13 , 14 PPCI, 15 , 16 and LTC engines have emerged. 17 , 18 Several researchers have also added small proportions of variable types of nanoadditives to the diesel fuel in order to improve combustion characteristics and reduce pollutants.…”

Section: Introductionmentioning

confidence: 99%

“…New ignition methods are among the many options presented in this direction, and HCCI, , PPCI, , and LTC engines have emerged. , Several researchers have also added small proportions of variable types of nanoadditives to the diesel fuel in order to improve combustion characteristics and reduce pollutants. , Some important studies mixed diesel fuel with water to form an emulsion that takes advantage of hydrogen and aqueous oxygen atoms in the combustion. , Since the nineties of the last century until today, studies are continuing to add many types of biofuels to diesel because this fuel is produced from natural sources as it is an oxygenator that contains in its chemical composition oxygen that improves the combustion process inside the combustion chamber. , …”

Section: Introductionmentioning

confidence: 99%

Ultralow Sulfur Diesel and Rapeseed Methyl Ester Fuel Impact on Performance, Emitted Regulated, Unregulated, and Nanoparticle Pollutants

et al. 2022

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The operation of engines using rapeseed methyl ester (RME) and ultralow sulfur diesel (ULSD) was tested for the combustion properties, emitted regulated, unregulated exhaust pollutants, and the size of nanoparticles. The combustion analysis showed higher apparent heat release rate and shorter ignition delay period during RME combustion than during ULSD combustion. The ULSD engine has a combustion chamber maximum pressure relatively higher than that of RME. This study showed that the heat release rate of ULSD is always higher than that of RME while more fuel consumption occurred from the combustion of biodiesel in comparison with diesel. When the engine is running on RME, HC and NOx formation increased at high loads up to 15% and 13%, respectively; meanwhile, CO concentrations reduced by 30.9% for the same conditions. Most of the particulate matter (PM) emitted from a diesel engine has a particle size from 5 to 100 nm, while the particle size from ULSD ranged from 5 to 40 nm. Overloading the engine caused a decrease in the sizes of emitted PM for both fuels. The smoke number for RME was less than that for ULSD by 33.9% at high loads. For high engine load, the cumulative concentration number for the nucleation mode decreased, while it increased for the accumulation mode. Furthermore, measurements of formaldehyde, ethane, methane, acetylene, ethylene, propylene, and isocyanic acid emissions showed the presence of these harmful substances at very low concentrations (8 ppm) for both fuels.

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High‐Throughput Screening Technologies of Efficient Catalysts for the Ammonia Economy

Quan,

Cheng,

Wang

et al. 2024

ChemCatChem

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Driven by the growing global demand for sustainable energy, ammonia is gaining recognition as a crucial energy carrier with the potential for widespread manufacturing. This has spurred the emergence of a "sustainable ammonia economy." Efficient catalyst development is paramount to achieving this purpose. Although the traditional trial‐and‐error methods have led to substantial progress, they are inherently time‐consuming. In recent years, the high‐throughput screening strategies are revolutionizing catalyst discovery, offering an efficient and cost‐effective approach for identifying high‐performance catalysts across various processes within the ammonia economy. This review explores recent advancements in these rapid catalyst screening techniques for ammonia‐based processes. By outlining the general screening principles and the key steps involved in the computational analysis of catalysts relevant to different stages of the ammonia economy, this review aims to provide fundamental insights for the development of novel catalysts using these accelerated methods.

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Effects of fuel combination and IVO timing on combustion and emissions of a dual-fuel HCCI combustion engine

Cited by 10 publications

References 32 publications

Numerical and experimental investigation of exergy, performance, emissions, combustion characteristics, and cyclic variations of CI engine fueled Karanja oil blended camphor oil and diesel blended camphor oil.

Numerical and experimental investigation of exergy, performance, emissions, combustion characteristics, and cyclic variations of CI engine fueled Karanja oil blended camphor oil and diesel blended camphor oil.

Ultralow Sulfur Diesel and Rapeseed Methyl Ester Fuel Impact on Performance, Emitted Regulated, Unregulated, and Nanoparticle Pollutants

High‐Throughput Screening Technologies of Efficient Catalysts for the Ammonia Economy

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