Performance and emission analysis of a dual-fuel engine operating on high natural gas substitution rates ignited by aqueous carbon nanoparticles-laden diesel/biodiesel emulsions

Ardabili, Sina Faizollahzadeh; Najafi, Bahman; Aghbashlo, Mortaza; Khounani, Zahra; Tabatabaei, Meisam

doi:10.1016/j.fuel.2021.120246

Cited by 17 publications

(22 citation statements)

References 55 publications

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“…Furthermore, V is the volume (m 3 ), ρ biodiesel is biodiesel density (kg/m 3 ), ρ HCNG is HCNG density (kg/m 3 ), t is the time in seconds, BD is the biodiesel in percentage, D is the diesel in percentage, and V HCNG is the volume tare of flow in liters per minute. Equations ( 6)- (11)…”

Section: Experimental Test Setupmentioning

confidence: 99%

“…When used in engines, fossil fuels have many disadvantages, including limited availability, higher cost, and pollutant emissions. Research is being conducted around the world on alternative fuels such as biodiesel, hydrogen, liquefied petroleum gas, compressed natural gas (CNG), and biomass to minimize tailpipe emissions from internal combustion engines 8–11 …”

Section: Introductionmentioning

confidence: 99%

“…Research is being conducted around the world on alternative fuels such as biodiesel, hydrogen, liquefied petroleum gas, compressed natural gas (CNG), and biomass to minimize tailpipe emissions from internal combustion engines. [8][9][10][11] According to many studies, biodiesel is one of the most viable alternatives to conventional diesel due to its lower carbon content, biodegradability, and lower emissions. Biodiesel has no adverse effect on the operating characteristics of an engine compared with regular diesel fuel, making it one of the most beneficial biofuel sources around.…”

Section: Introductionmentioning

confidence: 99%

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Investigation on a diesel engine fueled with hydrogen‐compressed natural gas and Kusum seed biodiesel: Performance, combustion, and emission approach

2022

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The objective of the present study is to evaluate the performance, combustion, and emission characteristics of a compression-ignition engine using hydrogen-compressed natural gas (HCNG)-enriched Kusum seed biodiesel blend (KSOBD20). The flow rate of HCNG was set at 5, 10, and 15 liters per minute (lpm), and the injection pressure was varied in the range of 180-240 bar. Brake thermal efficiency (BTE) and brake-specific fuel consumption (BSFC) were improved when HCNG was added to the KSOBD20. Combustion characteristics, namely, cylinder pressure (CP) and net heat release rate (NHRR), were also improved. Emissions of carbon monoxide (CO), hydrocarbons (HC), and smoke were also reduced, with the exception of nitrogen oxides (NO x ). The higher injection pressure (240 bar) had a positive effect on operating characteristics. At an injection pressure of 240 bar, for KSOB20 + 15 lpm HCNG, the highest BTE and the lowest BSFC were found to be 32.09% and 0.227 kg/kWh, respectively. Also, the CP and NHRR were 69.34 bar and 66.04 J/deg. CO, HC, and smoke levels were finally reduced to 0.013%, 47 ppm, and 9%, respectively, with increased NO x levels of 1623 ppm. For optimum results in terms of engine characteristics, the fuel combination

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Section: Experimental Test Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigation on a diesel engine fueled with hydrogen‐compressed natural gas and Kusum seed biodiesel: Performance, combustion, and emission approach

2022

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“…Various carbon-based nanoparticles are used to cause fuel droplet micro-explosions, resulting in a more efficient air-fuel mixture and managing the combustion flame temperature through their high latent absorbing heat [1]. Consequently, the oxidation chemical reactions are accelerating, reducing the At a low addition level, the tested fuel minimized hydrocarbon emissions by 8 to 40% under various engine operating loads.…”

Section: Introductionmentioning

confidence: 99%

On the impact of using nanoparticles type additives on the altering of diesel fuel jet characteristics

Niculae,

Chiriac,

Racovitza

2024

IOP Conf. Ser.: Mater. Sci. Eng.

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Even though diesel-powered passenger cars and light-duty vehicles may not be sold in the European Union by 2035, possibly in most other countries will be. Truck diesel engines will remain in use after 2035 because electric trucks are not a viable alternative for goods transportation. This involves continuing research and development on diesel engines to reduce their pollutant emissions. Alternative (renewable) fuels with combustion improvers can diminish emissions at the source. Nanoparticle-based additives can enhance the efficiency and emissions of diesel engines through their intense catalytic activity and by improving the fuel injection process. However, their effect on the injection process has not been well tested and published in the dedicated literature. The use of nanoparticles mixed in small fractions with original diesel fuel influences the physicochemical properties of the fuel as well as the formation of fuel jets inside the combustion chamber. This research focuses on the opportunity of using different diesel fuel blends mixed with combustion improver additives such as MWCNT and CeO2 nanoparticles. In this sense, a simulation investigation was conducted using the AVL BOOST Hydsim software. The physicochemical properties of fuels were used to assess the macroscopic characteristics of the fuel spray, such as penetration, spray cone angle, and Sauter mean diameter. When increasing the nanoparticle dosage, the penetration and spray cone angle values are decreasing, while the Sauter mean diameter values are increasing. This tendency is present for both nanoparticle types considered.

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“…Currently, numerous studies are being conducted on the reduction of the emission of undesirable combustion products from internal combustion engines [1][2][3][4][5][6][7]. One of the trends in the research is the use of fuel-water emulsion (FWE), which is evidenced by the increase in the number of published scientific papers on this topic.…”

Section: Introductionmentioning

confidence: 99%

Effect of Adding Emulsifier to Fuel on Work Efficiency and Gas Turbine Emissions

Niszczota

Gieras

2021

Energies

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In an effort to reduce the emissivity of transport and energy, numerous studies are being carried out on the impact of the combustion of alternative fuels on the emission and operating parameters of propulsion and energy units. One of the observed trends is the use of emulsion fuels. The addition of an emulsifier to an emulsion fuel reduces the interfacial tension between two liquids, which allows obtaining an emulsion fuel with the expected stability. The research conducted on self-ignition engines and gas turbines (TG) does not give an unambiguous answer as to the influence of the use of fuel-water emulsion on CO emissions. One of the reasons for the discrepancy in the obtained results may be the type and amount of the emulsifier used in the emulsion fuel. Tests were carried out on the GTM-120 gas turbine to compare the operating parameters and emissions between the cases in which TG was supplied with three fuel mixtures—the standard fuel for TG (DF) and DF with 2% and 5% emulsifier addition. It was shown that the addition of 2% of the emulsifier to DF causes an increase in CO emission, with the remaining measured parameters unchanged. On the other hand, increasing the amount of emulsifier in DF to 5% reduces CO emissions to the level observed in the case in which DF was burned reduces NOx emissions and reduces the thermal efficiency of TG.

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Performance and emission analysis of a dual-fuel engine operating on high natural gas substitution rates ignited by aqueous carbon nanoparticles-laden diesel/biodiesel emulsions

Cited by 17 publications

References 55 publications

Investigation on a diesel engine fueled with hydrogen‐compressed natural gas and Kusum seed biodiesel: Performance, combustion, and emission approach

Investigation on a diesel engine fueled with hydrogen‐compressed natural gas and Kusum seed biodiesel: Performance, combustion, and emission approach

On the impact of using nanoparticles type additives on the altering of diesel fuel jet characteristics

Effect of Adding Emulsifier to Fuel on Work Efficiency and Gas Turbine Emissions

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