Strength properties and calorific values of sawdust-briquettes as wood-residue energy generation source from tropical hardwoods of different densities

Antwi‐Boasiako, Charles; Acheampong, B.B.

doi:10.1016/j.biombioe.2015.12.006

Cited by 110 publications

(89 citation statements)

References 11 publications

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“…Added the long dimension of the briquettes occurs when the briquettes are removed from the mold [13]. This is one of the issues to be addressed for future research.…”

Section: Fracturedmentioning

confidence: 99%

Effect of Binders on EFB Bio-briquettes of Fuel Calorific Value

Handra¹,

Kasim²,

Gunawarman³

et al. 2018

International Journal on Advanced Science, Engineering and Information Technology

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The development of biomass has been assumed as an important issue in the past several decades and would remain to be attractive in the future due to its clean, renewable, and carbon-neutral properties. Biomass is one of the most important renewable energy resources in the world. In recent decades, the utilization of biomass has dramatically increased. There were many reasons. First, biomass is a renewable resource, because of the availability of biomass is unlimited, and its regenerative process runs well. Second, the extraction of biomass energy can be carried out more flexible. The biomass can be burned directly without high technology. Biomass bio-briquettes are often used as an energy source for cooking purpose and in some industries. The bio-briquettes are produced by densification of waste biomass using various processes. In this, the study manual densification of bio-briquettes was tested by three different binding agents; cassava flour, sago flour, and starch flour. The objective of this study was to compare different binding materials in the production of Empty Fruit Bunch (EFB) bio-briquettes between binders. The binder is used as a mixture on the EFB fiber. Three types of the binder are cassava flour, sago flour and starch flour are used as comparators to obtain high heating value. The percentage of binder in each sample is 2%. The ratio of the use of water as a diluent between the fiber and the adhesive is 1: 5. Samples of solid cylindrical shape diameter 4 cm and 5 cm high and density sample is 0.8 g/cm3. The pressure is used to generate samples specified in the mold volume. The volume of the cylinder is 62.8 cm3. The adhesive cassava with a percentage of 2% can provide power to the sample mechanically by a drop test at the height of 1.20 m. The result shows that the binder cassava has fuel calorific value average is 3661 cal/g, a binder of starch 3584 cal/g and sago 3537 cal/g. Results indicated that sample binder cassava flour has calorific fuel value higher than sago and starch flour.

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“…Added the long dimension of the briquettes occurs when the briquettes are removed from the mold [13]. This is one of the issues to be addressed for future research.…”

Section: Fracturedmentioning

confidence: 99%

Effect of Binders on EFB Bio-briquettes of Fuel Calorific Value

Handra¹,

Kasim²,

Gunawarman³

et al. 2018

International Journal on Advanced Science, Engineering and Information Technology

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“…32 O tratamento T1 apresentou uma expansão considerada aceitável. O aumento da proporção de palha de cana-de-açúcar de 0% para 75% reduziu a expansão de 25,17% para 20,90%, conseguindo atingir uma expansão próxima à ideal.…”

Section: Estabilidade Dimensionalunclassified

Production and Physical-Mechanical Characterization of Briquettes from Coconut Fiber and Sugarcane Straw

et al. 2016

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Biomass in a broad sense has a great energy potential. It can be densified improving the logistic and the energetic efficiency. The aim of the present work was the characterization of coconut fiber (FC) and sugarcane straw (PC) and the evaluation of mechanical properties of the briquettes produced from these materials. The samples of materials were performed to proximate analysis and high heating value (HHV) with three repetitions. Five different blends were tested with 15 repetitions for each blend: treatment T1 (100% FC), T2 (75% FC and 25% PC), T3 (50% FC and 50% PC), T4 (25% FC and 75% PC) and T5 (100% PC). It was used particles size smaller than 0.84 mm with 12% moisture content for the briquettes production. The process was done in a hydraulic press without heating or binder. Briquette length expansion at specific time intervals was determined over a 72 hours period. The strength and friability of briquettes were measured after the production period of six days. The results showed that in the proximate analysis and HHV coconut fiber and sugarcane straw presented 74.01% and 77.50% for volatile matter, 3.71% and 5.68% for ash, 22.28% and 16.81% for fixed carbon, 18.24 MJ.kg -1 e 17.49 MJ.kg -1 for HHV, respectively. Sugarcane straw briquettes were classified as very crumbly. However, blending coconut fiber with sugarcane straw improved the quality of briquette.Keywords: Biomass; bioenergy; mechanical strength; solid biofuel. ResumoA biomassa, em geral, mostra um grande potencial energético. Ainda na sua forma compactada pode melhorar a logística e a eficiência energética. Neste sentido o presente trabalho teve como objetivo caracterizar a fibra de coco (FC) e a palha de cana-de-açúcar (PC) e avaliar as propriedades mecânicas dos briquetes produzidos. A biomassa foi caracterizada em relação à analises química imediata e poder calorífico superior (PCS) com três repetições cada. Para a produção dos briquetes foram realizados cinco tratamentos com 15 repetições: tratamento T1 (100% FC), T2 (75% FC e 25% PC), T3 (50% FC e 50% PC), T4 (25% FC e 75% PC) e T5 (100% PC). Briquetes foram produzidos utilizando os materiais com granulometria inferior a 0.84 mm e teor de umidade de 12%. Foi utilizada uma prensa hidráulica sem aquecimento e não houve adição de aglutinante. A expansão dos briquetes foi acompanhada durante as suas primeiras 72 horas. Após seis dias da produção, os briquetes foram submetidos aos testes de resistência mecânica. Os resultados na análise química imediata e PCS, mostraram que a fibra de coco e a palha da cana-de-açúcar apresentaram valores de 74.01% e 77.50% para voláteis, 3.71% e 5.68% para cinzas, 22.28% e 16.81% para carbono fixo, 18.24 MJ.kg Palavras-chave: Biomassa; bioenergia; resistência mecânica; biocombustível sólido.

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“…27 Esses valores são importantes pois indicam a qualidade de compactação dos materiais e consequentemente a viabilidade de sua utilização considerando processos de estoque e transporte. Com relação aos briquetes formados pela mistura dos materiais, que constituem a busca por uma mistura ótima a fim de melhorar as características do pinhão, o tratamento T2 se mostrou superior.…”

Section: Figura 2 Expansão Volumétrica Dos Briquetes Após 48hrs a Suunclassified

Chemical and Energetic Characterization of Residual Epicarp of Jatropha (Jatropha curcas L.) and produced briquette

et al. 2017

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Among the oleaginous plants, Jatropha curcas is a species with considerable potential energy for use as biodiesel. The waste disposal parts of the fruit, after the oil extraction, as well as its epicarp are considered energy loss. Under the conditions presented, this study was aimed to accomplish the energy characterization of the remaining epicarp achieved by the processing of the Jatropha fruit, along with briquetes. It was attested through the proximate analysis of materials and particle size distribution, heating value determination, briquettes production and mechanical testing. The treatments consisted of briquettes with different amounts of particle materials of Jatropha and Pine Wood. The resulting values of chemical analysis, as well as ash content (7.71%), fixed carbon content (26.73%), volatile matter (65.56%) and high heating value (HHV) (4079,24 kcal.kg -1), indicate the quality of the epicarp for energy use. The ash content values were relatively low when compared to other residual materials. The addition of pine wood to Jatropha briquette represented an improvement of the mechanical characteristics in all of the tested proportions. However, all the treatments results in low values of resistance.

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Strength properties and calorific values of sawdust-briquettes as wood-residue energy generation source from tropical hardwoods of different densities

Cited by 110 publications

References 11 publications

Effect of Binders on EFB Bio-briquettes of Fuel Calorific Value

Effect of Binders on EFB Bio-briquettes of Fuel Calorific Value

Production and Physical-Mechanical Characterization of Briquettes from Coconut Fiber and Sugarcane Straw

Chemical and Energetic Characterization of Residual Epicarp of Jatropha (Jatropha curcas L.) and produced briquette

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