2007
DOI: 10.1016/j.jfoodeng.2006.03.011
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Dispersion coefficient of coffee berries in vibrated bed dryer

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Cited by 5 publications
(4 citation statements)
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“…For both the operation at an air temperature of 45 o C and 60 o C, the mass transfer coefficients were greater in the vibrated system than that of the non-vibrated system, namely 0.001 -0.003 kg H2O/m 2 s and 0.001 kg H2O/m 2 s respectively. The experimental results show that the temperature difference gives a significant difference in drying time which are 24 hours and 6.5 hours for temperatures of 60 o C and 45 o C respectively [15]. This means that drying at 60 o C takes 65% less drying time than that of 45 o C.…”
Section: Coffee Drying By Using Tray Dryermentioning
confidence: 94%
See 1 more Smart Citation
“…For both the operation at an air temperature of 45 o C and 60 o C, the mass transfer coefficients were greater in the vibrated system than that of the non-vibrated system, namely 0.001 -0.003 kg H2O/m 2 s and 0.001 kg H2O/m 2 s respectively. The experimental results show that the temperature difference gives a significant difference in drying time which are 24 hours and 6.5 hours for temperatures of 60 o C and 45 o C respectively [15]. This means that drying at 60 o C takes 65% less drying time than that of 45 o C.…”
Section: Coffee Drying By Using Tray Dryermentioning
confidence: 94%
“…Vibrated bed dryer is one of the coffee drying methods to obtain uniform drying distribution. Therefore, the dispersion coefficient of coffee should be investigated [15]. Coffee cherries drying through vibrating tray dryer was conducted to promote the improvement in flavor and aroma of coffee beverages through controlled operating conditions with associated vibration.…”
Section: Coffee Drying By Using Tray Dryermentioning
confidence: 99%
“…El procedimiento de secado de cafés naturales, más ampliamente difundido consta de una primera etapa de secado solar donde se disminuye la humedad a valores comprendidos entre el 30% -35%, seguido de una finalización en secado mecánico alcanzando valores finales del 13,0% de humedad (Guimarã et al, 1998). Durante el proceso de secado de capa estática (sin movimiento de la masa), se recomienda la rotación del café a intervalos regulares de 3,0 horas, debido a que este procedimiento reduce la humedad en la masa del grano (Finzer et al, 2007). Las recomendaciones más frecuentes durante esta etapa son el uso de alturas de capa de secado inferiores a 50 cm y temperaturas del aire de secado máximo de 50°C, controlando que la temperatura de la masa no sea superior a 40°C.…”
Section: Características Del Proceso Vía Secaunclassified
“…Outros secadores de grânulos dispersíveis em água usam secadores em leito fluidizado com multicâmaras (Maciel Júnior & Finzer, 2021). A vibração do leito de secagem consiste em uma das técnicas usadas para aperfeiçoar o escoamento e a secagem : Finzer, et al, 1997;Menezes et al, 1998;Finzer, et al, 2003;Finzer, et al, 2007. A secagem de granulados é um dos mais importantes processos da planta em estudo porque o produto possui alto valor agregado e alguns apresentam termo sensibilidade. Logo, a melhoria geral do processo também se fazia necessária para garantir estabilidade no parâmetro umidade expresso em base úmida, um importante item de especificação do produto acabado.…”
Section: Introductionunclassified