Fuel Particle Size Effect on Performance of Fluidized Bed Combustor Firing Ground Nutshells

Suranani, Srinath; Goli, Venkat Reddy

doi:10.7763/ijcea.2012.v3.176

Cited by 7 publications

(5 citation statements)

References 7 publications

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“…The difference in particle size distribution of these wood fuels may have an influence on the combustion and pyrolysis process. For example, Suranani and Goli (2012) showed that the particle size of groundnut shells influenced burning performance in a fluidized bed combustor. They noted that maximum combustion efficiency was attained (89.5%) when pieces had an average size of 0.273 mm.…”

Section: Resultsmentioning

confidence: 99%

Characterization of pecan shells and their effect on the physical properties and acceptability of smoked chicken breast

Fu¹,

Kerr

2020

Journal of Food Science

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Pecan shells were used as a source of smoke for cooked chicken breast and compared with samples smoked with hickory, mesquite, and apple tree wood. The wood moisture content ranged from 7.94% to 11.43%, whereas ash ranged from 0.97% to 3.11%. The particle size varied among the smoke sources, with chopped pecan shells having more pieces in the "coarse" category. Several properties related to quality of the cooked meat were measured including moisture content, water activity, color, cook loss, expressible moisture, and maximum shear force. Moisture content ranged from 70.13% to 71.72%, whereas pH ranged from 6.39 to 6.43. Chicken breasts smoked with pecan shells were darker (L * = 72.86 compared to 74.94 to 76.57) and slightly redder (a * = 5.71; b * = 25.70) than other samples. Color development was localized to the surface of the meat. Cooking loss did not differ significantly among the samples (26.13% to 27.03%) nor did expressible moisture (9.68% to 11.87%). Meat tenderness was assessed by shear values, but did not differ among the samples. Consumer panels showed that all samples were well liked. Samples smoked with mesquite had slightly lower scores for flavor and overall likability, whereas the scores for samples smoked with hickory, apple, or pecan shells were no different.

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Section: Resultsmentioning

confidence: 99%

Characterization of pecan shells and their effect on the physical properties and acceptability of smoked chicken breast

Fu¹,

Kerr

2020

Journal of Food Science

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“…Based on previous research by Suranani and Goly [31], the size of fuel particles affects the amount of CO2 formed from combustion. Fuel with a smaller size tends to produce greater CO2 gas emissions, which indicates more complete combustion.…”

Section: Co2 Gas Emission Of Combustionmentioning

confidence: 99%

Numerical Analysis of the Co-firing Combustion of Coal and Palm Shell Kernel In Stoker Boiler

M. S. K. Tony Suryo Utomo,

Muchammad,

Eflita Yohana

et al. 2024

CFDL

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The United Nations Framework Convention on Climate Change (UNFCCC) states that Indonesia is committed to contributing to global climate change solutions. The government will also continue to encourage the development of a number of renewable energy (EBT)-based power generation projects. This is based on the use of renewable energy which is still low, namely around (1.9%) 8215.5 MW. Meanwhile, the potential for EBT to become energy can be around 443,208 MW. One source of EBT in Indonesia that can be utilized is Biomass. Co-firing of biomass is a relatively cheaper option and does not require investment in new power plants. However, Co-firing combustion has several aspects that need to be studied, such as temperature combustion and the generation of gas emissions. Therefore, this study aims to determine the temperature and the emissions resulting from co-firing of palm kernel shell biomass. This research was conducted using the Computational Fluid Dynamics method on stoker boiler model. The test parameters of the research was the maximum and average temperatures in the furnace, and the average and maximum fractions of CO2, SO2 in the stoker boiler furnace. From the research conducted, it was found that the resulting combustion temperature decreased as the co-firing fraction of the biomass increased. However, CO2 gas emissions increased and SO2 decreased with increasing fraction of co-firing biomass which showed a decrease in harmful gas emissions and complete combustion that occurred in the furnace.

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“…Therefore, only the H 2 inhibition effect was considered in this work since steam was used as the gasifying agent during the char conversion, i.e., the CO inhibition effect is negligible [30]. Since the size of the fuel particles was limited to between 125 and 500 µm, which is relatively small, the effect of the diffusion of oxygen was not taken into account in this study [35]. Langmuir-Hinshelwood/ Hougen-Watson (LHHW) models were used to interpret the conversion mechanism in this work since the models are applicable to describe char conversion in a mixture of steam, CO 2 , H 2 , and CO, which is the case in this study [34].…”

Section: Char Reactivity Modelsmentioning

confidence: 99%

An Unbiased Approach to Low Rank Recovery

Carlsson¹,

Gerosa²

2022

SIAM J. Optim.

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Iron sand as an industrial by-product has a reasonable iron content (35 wt% Fe) and low economical cost. The reactivity of iron sand as an oxygen carrier was examined in a bubbling fluidized bed reactor using both gaseous and solid fuels at 850-975 • C. Pre-reductions of iron sand were performed prior to fuel conversion to adapt the less-oxygen-requiring environment in chemical looping gasification (CLG). Based on the investigations using CO and CH 4 , iron sand has an oxygen transfer capacity of around 1 wt%, which is lower than that of ilmenite. The conversion of pine forest residue char to CO and H 2 was higher when using iron sand compared to ilmenite. Depending on the mass conversion degree of iron sand, the activation energy of pine forest residue char conversion using iron sand was between 187 and 234 kJ/mol, which is slightly lower than that of ilmenite. Neither agglomeration nor defluidization of an iron sand bed occurred even at high reduction degrees. These suggests that iron sand can be utilized as an oxygen carrier in CLG. Furthermore, this study presents novel findings in the crystalline phase transformation of iron sand at various degrees of oxidation, altogether with relevant thermodynamic stable phases.

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Fuel Particle Size Effect on Performance of Fluidized Bed Combustor Firing Ground Nutshells

Cited by 7 publications

References 7 publications

Characterization of pecan shells and their effect on the physical properties and acceptability of smoked chicken breast

Characterization of pecan shells and their effect on the physical properties and acceptability of smoked chicken breast

Numerical Analysis of the Co-firing Combustion of Coal and Palm Shell Kernel In Stoker Boiler

An Unbiased Approach to Low Rank Recovery

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