The impact of C/H on the radiative and thermal behavior of liquid fuel flames and pollutant emissions

Boghrati, Mehdi; Moghiman, Mohammad; Pourhoseini, S.H.

doi:10.1007/s40430-017-0808-7

Cited by 4 publications

(3 citation statements)

References 24 publications

(27 reference statements)

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“…Nanoemulsion fuel is composed of kerosene as the base fuel, silver–water nanofluid, and surfactant. The chemical composition of kerosene as determined by a CHNS elemental analyzer VARIO ELCUBE is given in Table …”

Section: Methodsmentioning

confidence: 99%

“…The chemical composition of kerosene as determined by a CHNS elemental analyzer VARIO ELCUBE is given in Table 1. 49 All glassware was washed in a mixture of distilled water and nonionic detergent, which was followed by rinsing with distilled water and ethanol many times to make sure of removing any remains of the nonionic detergent. The glassware was afterward dried to be ready for use.…”

Section: Methodsmentioning

confidence: 99%

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Effect of Nanosilver/Water-in-Kerosene Emulsion on NOx Reduction and Enhancement of Thermal Characteristics of a Liquid Fuel Burner

Pourhoseini

Esmaeeli

2017

Energy Fuels

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This study investigated the effect of nanosilver/water-in-kerosene emulsion on thermal and radiative characteristics and pollutant emissions of a liquid burner. The results were compared with the corresponding values resulted from neat kerosene. Light microscopic imaging was used to study microexplosion of the fuel droplets. Also, combining chemiluminescence technique and measurement of pollutant concentrations, a qualitative study was carried out to find out the effect of CO, CO2, water vapor, and intermediate soot particles on the flame emissivity coefficient. The results showed that the Brownian motion of silver nanoparticles and localized convection between nanoparticles and the adjacent fluids increased the evaporation rate of nanoemulsion droplets and the rate of their mixing with oxidizing air. Besides the nanoparticles effect, the secondary injection of nanoemulsion due to microexplosion of water droplets enhanced the mixing rate of nanoemulsion fuel and oxidizing air. Although absorption of heat by water content of nanoemulsion fuel decreased the flame temperature, the nanoemulsion fuel, compared with neat kerosene, enhanced the average radiation of flame by 23%. Further, the results indicated that although CO and CO2 did not change significantly in amount, NOx emission reduced as much as 23.7% when the nanosilver/water-in-kerosene emulsion, instead of neat kerosene, was used.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Effect of Nanosilver/Water-in-Kerosene Emulsion on NOx Reduction and Enhancement of Thermal Characteristics of a Liquid Fuel Burner

Pourhoseini

Esmaeeli

2017

Energy Fuels

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“…Their findings revealed that the introduction of carbon in the form of nanoparticles led to an increase in reaction rates, a reduction in flame length, elevated temperatures, and enhanced thermal radiation. Moreover, an increase in carbon in the form of heavier fuel resulted in slower combustion, longer flame length, increased temperatures, and heightened thermal radiation [20]. Pourhosseini et al (2017) investigated how injecting silver nanoparticles could improve thermal characteristics and decrease pollutants in liquid fuel flames [21].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Gas Burner Efficiency and Reducing Exhaust Emissions: An Experimental Study on the Use of Nebulized Carbon Nanoparticles

Jodat,

Najafian,

Mahian

2024

Preprint

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Natural gas is a significant energy source that burns more cleanly than other fossil fuels when used in combustion chamber. Although it is the most environmentally friendly fossil fuel, the radiation heat transfer of its flame is lower than that of liquid and solid fuels, where radiation remains an important factor in heat transfer. This study involved an experiment to examine the impact of injecting nebulized carbon nanoparticles into a natural gas diffusion flame on the radiation characteristics and pollutant emissions of natural gas. The experiments and measurements were conducted by using a three-pass fire tube industrial steel boiler with a maximum capacity of 120 kW. A novel aspect of our experiment was the use of nebulizer technology to inject 1000 ppm of carbon nanoparticles at a mass flow rate of 5.5 g/min into natural gas burners, aiming to improve thermal efficiency and decrease environmental pollutants. Flame radiation heat flux and luminosity were measured using an HFS01 water-cooled heat flux sensor and a TES-1332A digital luminance meter, respectively. The findings indicate that changes in flame properties, such as brightness and heat radiation, are linked to the infrared wavelengths emitted from the flame, as well as to a 2-degree Celsius increase in water temperature at the boiler outlet. Injecting nanoparticles also lowers the chimney gas temperature while enhancing the radiation heat flux by 5%. Despite a slight decrease in the average flame temperature, this technique successfully reduces thermal NOx emissions by 8% and carbon monoxide emissions by 9%, as detected by a Testo 350 XL gas analyzer. It is important to note that this research underscores the potential benefits of using carbon nanoparticle injection to enhance burner efficiency and reduce the environmental impact of natural gas combustion.

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Combustion, emission and radiative performance of diffusion flame: effect of graphene nanoparticles

et al. 2023

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The impact of C/H on the radiative and thermal behavior of liquid fuel flames and pollutant emissions

Cited by 4 publications

References 24 publications

Effect of Nanosilver/Water-in-Kerosene Emulsion on NOx Reduction and Enhancement of Thermal Characteristics of a Liquid Fuel Burner

Effect of Nanosilver/Water-in-Kerosene Emulsion on NOx Reduction and Enhancement of Thermal Characteristics of a Liquid Fuel Burner

Enhancing Gas Burner Efficiency and Reducing Exhaust Emissions: An Experimental Study on the Use of Nebulized Carbon Nanoparticles

Combustion, emission and radiative performance of diffusion flame: effect of graphene nanoparticles

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