Comparisons of combustion characteristics between bioliquid and heavy fuel oil combustion in a 0.7 MWth pilot furnace and a 75 MWe utility boiler

Park, Ho-Young; Han, Karam; Kim, Hyun Hee; Park, Sangbin; Jang, Jinyoung; Yu, Geun Sil; Ko, Ji Ho

doi:10.1016/j.energy.2019.116557

Cited by 20 publications

(6 citation statements)

References 31 publications

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“…This issue will be discussed in the Emissions section. Power loss due to demands on fuel transportation and heating, data from [16,17,22,36], assumed nominal power 100 kW th .…”

Section: Fuel Propertiesmentioning

confidence: 99%

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Application of Fatty Acids Distillation Products as a Substitute for Heavy Fuel Oil in Stationary Combustion Chambers

Lasek,

Głód,

Czardybon

et al. 2023

Applied Sciences

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Liquid biofuels are of special interest due to the possibility of their application as a substitute for fossil liquid fuels. The necessary step is to investigate the possibility of bio-fuel application in terms of its properties and similarities to fossil liquid fuels (e.g., crude oil, heavy fuel oil, diesel). The properties and combustion performance of heavy fuel oil (HFO) and products of the fatty acids distillation residues (FADR) were analyzed in this study. The application of animal-fat-delivered fuels is fully suggested in the literature. Nevertheless, the investigations focused on the raw materials or their transformation into diesel. The novelty of this paper is the utilization of FADR as a substitute for HFO. The utilization of FADR allows the use of this material as a feedstock to obtain valuable products (fuel) and avoids generating waste after animal fat processing. The experimental investigations were carried out using a technical-scale 150 kWth combustion chamber. FADR can be recognized as a substitute for HFO due to its beneficial calorific properties and viscosity. Other beneficial effects are the significantly lower emission of SO2 (lower than 1 ppm) and PAHs (i.e., 355 µg/m3n) during the combustion of FADR. Finally, the application of FADR requires less energy demand for fuel heating and pressurization.

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“…This issue will be discussed in the Emissions section. Power loss due to demands on fuel transportation and heating, data from [16,17,22,36], assumed nominal power 100 kW th .…”

Section: Fuel Propertiesmentioning

confidence: 99%

“…Figure 5. Energy per fuel mass loss due to demands on fuel transportation (E pressur ) and heating (E heat ), data from[16,17,22,36].…”

mentioning

confidence: 99%

Application of Fatty Acids Distillation Products as a Substitute for Heavy Fuel Oil in Stationary Combustion Chambers

Lasek,

Głód,

Czardybon

et al. 2023

Applied Sciences

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“…Heavy fuel oil (HFO) is widely used in many fields including thermal power plants, metallurgical industry, and ocean transportation due to its attractive combination of attributes such as high heating value and low cost. , Therefore, such a combination of attributes has high potential for being utilized in diesel-powered shipping in international trade. Nevertheless, the practical application of HFO still poses inevitable problems such as negative cold flow characteristics, poor fuel atomization, and incomplete combustion, which are caused by the high viscosity (700 mm 2 /s at 50 °C) and consequent difficulty in flowability. − Moreover, various pollutants are emitted, such as carbon dioxide (CO 2 ), carbon monoxide (CO), nitrogen oxides (NO x ), and particulate matter (PM), when burning HFO, which limits its further applications. , Therefore, it is of great significance to improve the fuel components to facilitate further engineering applications, including increasing engine performance and reducing emissions.…”

Section: Introductionmentioning

confidence: 99%

“… 3 − 5 Moreover, various pollutants are emitted, such as carbon dioxide (CO 2 ), carbon monoxide (CO), nitrogen oxides (NO x ), and particulate matter (PM), when burning HFO, which limits its further applications. 6 , 7 Therefore, it is of great significance to improve the fuel components to facilitate further engineering applications, including increasing engine performance and reducing emissions.…”

Section: Introductionmentioning

confidence: 99%

Effect of Multifactor on the Stability of Glucose Solution Emulsified Heavy Fuel Oil

Wang,

Chen,

Awad

et al. 2023

ACS Omega

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Water emulsified heavy fuel oil (HFO) has been a promising alternative fuel for reducing oil consumption and preventing environmental pollution. However, the intrinsic challenges such as fuel formula, emulsion stability, and preparation process normally limit its further applications in energy-saving and emission reduction applications. In this study, the glucose obtained from biomass was added to a dispersed-phase aqueous solution of water emulsified HFO to prepare a novel alternative emulsified fuel. First, based on the preliminary experimental design, the effects of glucose and surfactant on the stability of the HFO emulsion were systematically evaluated through the appearance of emulsion separation, droplet size distribution, and rheological characteristics. It indicated that the surfactant ratio, hydrophilic–lipophilic balance value, solution ratio, and glucose/water ratio had significant impacts on emulsion stability. Subsequently, the optimum range of influencing factors of emulsion stability was determined by a single factor experiment and determined by the response surface methodology based on the Box–Behnken design; the optimal values of the above factors were 2.439 v/v%, 5.807, 26.462 v/v%, and 35.729%, respectively. Under these conditions, an optimal glucose solution emulsified HFO with a uniform brown color and long-term stability was obtained, making the unseparated emulsion ratio reach 98% (lasting for 7 days at 85 °C). Meanwhile, it emerged that the influence of multifactor on emulsion stability was not a simple linear correlation, and there were significant interactions between the solution ratio and the surfactant ratio, as well as between the glucose/water ratio and the surfactant ratio.

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“…NO X emission and wall heat flux were both decreased in the case of a 79 MW utility boiler. [25] The very first process in liquid fuel combustion is atomization. Highly viscous liquids show a significantly lower tendency to breakup [26].…”

Section: Introductionmentioning

confidence: 99%

Experimental Comparison of Diesel and Crude Rapeseed Oil Combustion in a Swirl Burner

Józsa

2020

Applied Sciences

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In pursuing maximum energy efficiency, local utilization of various crude fuels came into view. The present paper compares the combustion characteristics of standard diesel oil and crude rapeseed oil; the latter is an excellent model for high-viscosity liquid fuels. The combustion tests were performed in a 15 kW atmospheric turbulent swirl burner; the liquid fuels were atomized by a plain-jet airblast atomizer. Firstly, the acoustic signal is evaluated, since the instabilities of swirl combustion are accompanied by characteristic pressure fluctuations. The spectral analysis was performed by Wavelet transform, which fits excellently to the acoustic spectrum of combustion noise. This multi-scale technique features increased spectral resolution at lower frequencies at the expense of lower temporal resolution, providing excellent performance at both low-frequency, well-localized components and high-frequency, broadband phenomena. The joint probability density function of two characteristic frequencies was plotted with the result that flame acoustics match for the two fuels. Secondly, their pollutant emissions were compared and evaluated under similar conditions with the conclusion that crude rapeseed oil can substitute diesel oil in a limited operating range. Note that the distinct material properties already mean differences in all atomization, evaporation, and mixing characteristics, hence, the latter result is not intuitive.

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Comparisons of combustion characteristics between bioliquid and heavy fuel oil combustion in a 0.7 MWth pilot furnace and a 75 MWe utility boiler

Cited by 20 publications

References 31 publications

Application of Fatty Acids Distillation Products as a Substitute for Heavy Fuel Oil in Stationary Combustion Chambers

Application of Fatty Acids Distillation Products as a Substitute for Heavy Fuel Oil in Stationary Combustion Chambers

Effect of Multifactor on the Stability of Glucose Solution Emulsified Heavy Fuel Oil

Experimental Comparison of Diesel and Crude Rapeseed Oil Combustion in a Swirl Burner

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