The influence of moisture content on dust generation in falling curtains of sugarcane bagasse fiber

Author(s):  
M. Sheehan ◽  
E. Antunes ◽  
B. Seligmann ◽  
C. Weight
2012 ◽  
Vol 33 (2) ◽  
pp. 349-356 ◽  
Author(s):  
Alireza Bahadori ◽  
Gholamreza Zahedi ◽  
Sohrab Zendehboudi ◽  
Ahmad Jamili

FLORESTA ◽  
2015 ◽  
Vol 45 (4) ◽  
pp. 713 ◽  
Author(s):  
Diego Aleixo Silva ◽  
Gabriela Tami Nakashima ◽  
João Lúcio Barros ◽  
Alessandra Luzia Da Roz ◽  
Fabio Minoru Yamaji

O objetivo deste trabalho foi caracterizar a produção de briquetes feita a partir de quatro diferentes biomassas residuais. Foram utilizados os resíduos de serragem de Eucalyptus sp, serragem de Pinus sp, bagaço de cana-de-açúcar (Saccharum officinarum L.) e palha de cana-de-açúcar. Os resíduos foram tratados para que obtivessem 12% de umidade e uma granulometria inferior a 1,70 mm. Foram produzidos 15 briquetes para cada um dos quatro tratamentos. A pressão utilizada foi de 1250 kgf.cm-2 durante 30 segundos. Os briquetes obtiveram densidades que oscilaram 0,88 a 1,11 g.cm-3. Isto representou uma faixa de 5 a 14 vezes a menos de ocupação de volume para uma mesma quantidade de massa. O poder calorifico foi de 19.180 J.kg-1 e 20.315 J.kg-1 para as serragens de eucalipto e pinus respectivamente. Para o bagaço e palha de cana os valores foram de 18.541 J.kg-1 e 15.628 J.kg-1. A palha da cana-de-açúcar apresentou um teor de cinzas de 12%. As expansões dos tratamentos oscilaram 4 a 9% e as resistências mecânicas variaram de 1,215 MPa à 0,270 MPa. Todos os briquetes se mostraram resistentes para um empilhamento superior a 10 m de altura. O procedimento adotado pode ajudar a diminuir o espaço de estocagem e de transporte. AbstractThis research aims to characterize the production of briquettes from four different biomasses. We used residues such as Eucalyptus sp sawdust, Pinus sp sawdust , sugarcane bagasse (Saccharum officinarum L.) and sugarcane straw. The residues were treated to obtain 12% moisture content and particle size less than 1.70 mm. We produced 15 briquettes for each treatment. The pressure used was 1250 kgf.cm-2 for 30 seconds. The briquettes obtained densities ranged from 0.88 to 1.11 g.cm-3. This represented a range of 5 to 14 times less volume occupancy for the same amount of mass. The high heating value (HHV) was 19,180 J.kg-1 and 20,315 J.kg-1 for eucalyptus and pine sawdust respectively. The HHV for the bagasse was 18,541 J.kg-1 and for straw was 15,628 J.kg-1. The straw presented an ash content of 12%. The expansions of the treatments ranged 4 to 9% and mechanical resistances ranging from 1,215 MPa to 0,270 MPa. All briquettes were resistant to a higher stacking to 10 m high. The methods can help to decrease the space of storage and transport.Keywords: Waste; biofuel; energy; compression; stacking.


2018 ◽  
Vol 6 (2) ◽  
pp. 176-182 ◽  
Author(s):  
Bruno Henrique dos Santos ◽  
Karen de Souza do Prado ◽  
Asaph Armando Jacinto ◽  
Márcia Aparecida da Silva Spinacé

2014 ◽  
Vol 23 (1) ◽  
pp. 97-106 ◽  
Author(s):  
Benchawan Boontima ◽  
Athapol Noomhorm ◽  
Chureerat Puttanlek ◽  
Dudsadee Uttapap ◽  
Vilai Rungsardthong

2017 ◽  
Vol 730 ◽  
pp. 48-53 ◽  
Author(s):  
Elammaran Jayamani ◽  
Soon Kok Heng ◽  
Muhammad Khusairy bin Bakri ◽  
Sinin Hamdan

This research focuses on the sound absorption coefficient of three different natural fibers reinforced epoxy composites. The natural fibers used are coconut coir, kenaf, and sugarcane bagasse. All of these fibers were mixed with epoxy resin and hardener with a ratio of 4:1. The mixtures were then poured into a circular mold and compressed by using compression molding technique. It was left for curing for 24 hours at standard room temperature. The results were obtained using the two-microphone transfer functions impedance tube method according to ASTM E1050-12. It is found that as the fiber loading increased, the sound absorption coefficient of the composites increased. 20wt% Coconut coir epoxy composites and 20wt% kenaf fiber epoxy composites have the highest sound absorption coefficient with almost similar sound absorption of 0.078 at 5000Hz. While, 20wt% sugarcane bagasse epoxy composites have sound absorption of 0.075 at 5000Hz.


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