Effects of hydrogen-enriched biogas on combustion and emission of a dual-fuel diesel engine

Ahmed, Salman Abdu; Zhou, Song; Tsegay, Solomon; Ahmad, Naseem; Zhu, Yuanqing

doi:10.1080/15567036.2020.1736694

Cited by 17 publications

(7 citation statements)

References 28 publications

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“…The pressure values for all the fuel-blends are 73.09, 74.11, 74.12, 74.16, 74.14 and 73.98 bar for the B-100, BeB-0.5, B(HE-B)0.5, B(HE-B)0.75, B(HE-B)1.0 and (HE-B)0.5 kg/h (Fig. 9); these corroborates the findings of refs [6,10,32]. The higher pressures measured are due to the large amount of energy dissipated in the engine which is caused by the combustion of diesel fuel, whereas, all the fuel blends exhibited slightly slower burning rates and a decrease in the amount of air entering the cylinder for every increase in the amount of hydrogen-enriched biogas flowing per hour into the combustion chamber.…”

Section: In-cylinder Pressuresupporting

confidence: 89%

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Investigating the emissions and performance of hydrogen enriched-biogas-Parinari polyandra biodiesel in a direct injection (DI) engine

Oni

Sanni

Ibegbu

et al. 2022

International Journal of Hydrogen Energy

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Section: In-cylinder Pressuresupporting

confidence: 89%

“…7 e NOx emissions versus engine load. i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 4 7 ( 2 0 2 2 ) 2 9 9 4 5 e2 9 9 5 5 [6,15]. The enrichment of hydrogen -biogas in the biodiesel fuel further boosts the phenomenon that induces pressure rise [22].…”

Section: In-cylinder Pressurementioning

confidence: 99%

Investigating the emissions and performance of hydrogen enriched-biogas-Parinari polyandra biodiesel in a direct injection (DI) engine

Oni

Sanni

Ibegbu

et al. 2022

International Journal of Hydrogen Energy

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“…The third stage involved burning the remaining charge of the total fuel and diffusing the combustion until the end of the power cycle [61]. The addition of H 2 to the blends of gaseous fuel increased the combustion and released more HRR precisely at the premixed combustion phase, because higher flame speed propagation (FSP) enhanced the mixing rate [62]. Many studies showed that natural gas (NG) blends enriched with different energy shares of H 2 increased HRR, due to three parameters, such as higher FSP, improved homogeneity of gaseous fuel, and auto-ignition ability of the mixture [52].…”

Section: Analysis Of Combustion Characteristicsmentioning

confidence: 99%

Review of Compression Ignition Engine Powered by Biogas and Hydrogen

Al‐Abboodi¹,

Ridha²

2023

PEET

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Unsustainable fossil fuels are mainly used to generate power in compression ignition (CI) engines in industry now. Due to fossil fuel depletion and potential environmental hazards, it is necessary for researchers to find alternative energy resources to adequately substitute hydrocarbon fossil fuels in current engines. A huge number of studies have focused on the use of renewable fuels in CI engines along with conventional petroleum fuels. Therefore, this paper aimed to analyze the effect of gaseous fuels added to CI engines as a supplement, such as H 2 , biogas and syngas, in dual fuel mode with diesel as an alternative fuel. This paper analyzed several important characteristics, on which engine evaluation of CI engines using gaseous fuel as an additive is based, such as combustion, performance and emissions, and compared them with those of CI engines operating in single-fuel mode. The findings of numerous empirical studies are shown in graphs of particular parameters, which were crucial for investigating and assessing the case. The main conclusions indicated that gaseous fuel enrichment caused slight decline of performance in CI dual-fuel engine but actually improved emissions. In addition, this paper thoroughly analyzed various methods to assess the performance of biogas in CI dual-fuel engines and investigated dangerous emission pollution.

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“…They discovered that the relationship between the thermal conductivity of the microtube wall and the fluid is crucial to the behavior of bubbles during their formation and that the thickness and material of the microtube wall change during bubble confinement. The influence of hydrogen and carbon dioxide on biogas was studied by Ahmed et al [ 30 , 31 ]. They revealed that the utilization of biogas with diesel is attractive to cut down discharges and enhance the performance of the engine.…”

Section: Introductionmentioning

confidence: 99%

Flow Boiling of Liquid n-Heptane in Microtube with Various Fuel Flow Rate: Experimental and Numerical Study

Rashid,

Ahmad,

Swati

et al. 2023

Micromachines

Self Cite

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The evaporation of liquid hydrocarbon n-heptane is discussed in detail with experimentation and numerical techniques. A maximum wall temperature of 1050 K was reported during an experimental process with a two-phase flow that was stable and had a prominent meniscus at a small fuel flow rate (FFR) ≤ 10 µL/min. At medium to high FFR (30–70 µL/min), the flow field was unstable, with nucleating bubbles and liquid droplets inside the microtube and the maximum temperature recorded was 850 K for 70 µL/min. For the numerical model, the temperature of the wall was used as a boundary condition. Using the numerical model, the evaporative flux at the meniscus, pressure drop, pressure oscillation, and heat transfer coefficient (HTC) were investigated. A single peak in HTC was obtained at a low fuel flow rate, while multiple peaks were obtained for high FFR. At low FFR, the pressure peak was observed to be 102.4 KPa, whereas at high FFR, the pressure peak increased to 105.5 KPa. This shows a 2% increase in pressure peak with an increase in FFR. Similarly, when the FFR increased from 5 µL/min to 70 µL/min, the pressure drop increased from 500 Pa to 2800 Pa. The high amplitude of pressure drops and a high peak of HTC were found, which depend on the mass flow rate. The coefficient of variation for pressure drop depends mainly on the fuel flow rate.

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Effects of hydrogen-enriched biogas on combustion and emission of a dual-fuel diesel engine

Cited by 17 publications

References 28 publications

Investigating the emissions and performance of hydrogen enriched-biogas-Parinari polyandra biodiesel in a direct injection (DI) engine

Investigating the emissions and performance of hydrogen enriched-biogas-Parinari polyandra biodiesel in a direct injection (DI) engine

Review of Compression Ignition Engine Powered by Biogas and Hydrogen

Flow Boiling of Liquid n-Heptane in Microtube with Various Fuel Flow Rate: Experimental and Numerical Study

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