Effect of blending ratio on combustion performance in blends of biomass and coals of different ranks

Moon, Cheoreon; Sung, Youl-Moon; Ahn, Seongyool; Kim, Tae‐Kyung; Choi, Gyung‐Min; Kim, Duckjool

doi:10.1016/j.expthermflusci.2013.01.019

Cited by 122 publications

(52 citation statements)

References 31 publications

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“…First, due to the low density of woody biomass, the heating value per unit volume of blending fuel falls to a significantly low level [9]. Second, coal and woody biomass become ignited in different temperature zones, and the high combustion efficiency of wood might hinder the combustion of coal when a certain level of heat is applied [10]. Therefore, it is necessary to find measures to prevent such problems when these materials are used in the existing coal-fired power plants, and to develop technologies to apply not to only solid-phase biomass but also to only liquid-phase biomass for the diversification of biomass.…”

Section: Introductionmentioning

confidence: 98%

An investigation of the evaporation behavior of bioliquid in the pores and its application to hybrid coal combining biomass with coal

Bae

Lee

et al. 2015

Applied Thermal Engineering

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Section: Introductionmentioning

confidence: 98%

An investigation of the evaporation behavior of bioliquid in the pores and its application to hybrid coal combining biomass with coal

Bae

Lee

et al. 2015

Applied Thermal Engineering

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“…This stage corresponds to the homogeneous combustion of released gases by the decomposition of lignin and heterogeneous combustion of solid carbon (MAGDZIARZ;WILK, 2013;MOON et al, 2013;KAI et al, 2011;FANG et al, 2006). Therefore, in this phase the mass loss was lower than the previous stage, corresponding to 25.79%.…”

Section: Fresh Biomassmentioning

confidence: 99%

“…The combustion characteristic index (S) was obtained by Equation [1] (QIAN et al, 2012;LI et al, 2013;LIU et al, 2013;MOON et al, 2013), where: (dm/ dt) max is the maximum combustion rate (% . min -1 ); (dm/dt) average is the average rate of combustion; T i is the ignition temperature (°C), T f is the burnout temperature (°C).…”

Section: Methodsmentioning

confidence: 99%

“…The greatest amount and the rapid emission of volatile materials are factors that contribute decisively to accelerate the ignition of the fuel at a lower temperature (MOON et al, 2013). Therefore, the decrease of the VM/ FC with increasing fi nal temperature of carbonization explains the rise in time of ignition and rate corresponding to the highest combustion time and the decrease in S and D i indexes (Table 1).…”

Section: Charcoal From Babassu Nutshellmentioning

confidence: 99%

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Combustion of Biomass and Charcoal Made From Babassu Nutshell

Protásio

Guimarães

Mirmehdi

et al. 2017

CERNE

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ABSTRACT:In recent years, studies have examined the use of lignocellulosic wastes for energy generation. However, there is a lack of information on the combustibility of the residual biomass, especially the bark and charcoal of babassu nut. In this study, thermogravimetric analysis (TGA), differential thermal analysis (DTA) and differential scanning calorimetry (DSC) were used to achieve the following objectives: to evaluate the combustion of the residual biomass from the babassu nut; to evaluate the combustion of charcoal produced from this biomass, considering different final carbonization temperatures; and to determine the effect of the final carbonization temperature on the thermal stability of charcoal and on its performance in combustion. Thermal analyses were performed in synthetic air. In order to evaluate the characteristics of charcoal combustion and fresh biomass, the ignition temperature (T i ), the burnout temperature (T f ), characteristic combustion index (S), ignition index (D i ), time corresponding to the maximum combustion rate (t p ), and ignition time (t ig ) were considered. The combustion of the babassu nutshell occurred in three phases and it was observed that this lignocellulosic material is suitable for the direct generation of heat. The increase in the final carbonization temperature caused an increase in the ignition temperature, as well as in the burnout temperature, the ignition time and the time corresponding to the maximum combustion rate. The results indicate that the increase in the carbonization temperature causes a decrease in combustion reactivity and, consequently, the charcoals produced at lower temperatures are easier to ignite and exhibit better performance in ignition.COMBUSTÃO DA BIOMASSA E DO CARVÃO VEGETAL DA CASCA DO COCO BABAÇU RESUMO: Nos últimos anos, pesquisadores têm analisado o uso de resíduos lignocelulósicos para geração de energia. No entanto, há uma falta de informação sobre a combustibilidade da biomassa residual, especialmente a casca e o carvão vegetal do coco babaçu. Neste estudo foram utilizadas as análises termogravimétricas (TGA), térmica diferencial (DTA) e de calorimetria exploratória diferencial (DSC) para: avaliar a combustão da biomassa residual do coco babaçu; avaliar a combustão do carvão vegetal produzido a partir dessa biomassa, considerando diferentes temperaturas finais de carbonização; e verificar o efeito da temperatura final de carbonização na estabilidade térmica do carvão vegetal e no seu desempenho na combustão. As análises térmicas foram realizadas em atmosfera de ar sintético. Para avaliar as características da combustão do carvão vegetal e da biomassa in natura foi considerada a temperatura de ignição (Ti), a temperatura final da combustão (Tf), o índice característico da combustão (S), o índice de ignição (Di), o tempo correspondente à máxima taxa de combustão (tp) e o tempo de ignição (tig). A combustão da casca do coco babaçu ocorreu em três fases distintas e observou-se que esse material lignocelulósico apresenta aptidão para ...

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“…Considering the point of costs and added effects, the most obvious effect was the blending proportion of 20%. The experimental data can provide the certain value that shows how to improve MSF's low heating value PGC in the future (Moon et al 2013;Massaro et al 2014). …”

Section: Physical and Chemical Propertiesmentioning

confidence: 99%

Properties and Combustion Characteristics of Molded Solid Fuel Particles Prepared by Pyrolytic Gasification or Sawdust Carbonized Carbon

et al. 2015

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a Pyrolytic gasified charcoal (PGC) and tar are the solid and liquid products, respectively, yielded from biomass gasification technology. In this paper, PGC was molded with adhesives to prepare molded solid fuel (MSF). Tar and PGC were obtained from the pyrolytic gasification of wood chips and sawdust from pine and cedarwood. PGC was molded with phenol resin prepared by wood tar to prepare MSF (MSF-MP). Meanwhile, there were two other methods used to prepare MSF. PGC molded with common phenol resin was one method (MSF-P). PGC was molded with starch adhesive to prepare MSF-S. Wood powder carbonized carbon (WPCC) obtained from the marketplace was employed as a trial sample. The properties and combustion characteristics of MSFs and WPCC were studied. It was found that the shatter strength of these MSFs were more than 95%. MSFs had higher activation energy and comprehensive combustion index compared to WPCC. MSF-MP yielded the following data: shatter strength: 95.86%, lower heating value (LHV): 25.89 MJ•kg . The LHV and activation energy of MSF-MP were superior to those of other MSFs. Therefore, MSF-MP has a market potential for use as barbecue charcoal in restaurant or family gatherings. The preparation of MSF-MP is a prospective method for the utilization of PGC and wood tar.

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Effect of blending ratio on combustion performance in blends of biomass and coals of different ranks

Cited by 122 publications

References 31 publications

An investigation of the evaporation behavior of bioliquid in the pores and its application to hybrid coal combining biomass with coal

An investigation of the evaporation behavior of bioliquid in the pores and its application to hybrid coal combining biomass with coal

Combustion of Biomass and Charcoal Made From Babassu Nutshell

Properties and Combustion Characteristics of Molded Solid Fuel Particles Prepared by Pyrolytic Gasification or Sawdust Carbonized Carbon

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