Análisis de alternativas de secado de arroz con uso de energía renovable o residual
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Fecha
2011-07-20
Autores
Tran Trung, Kien
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Universidad Central "Marta Abreu" de Las Villas
Resumen
En el presente trabajo se realiza un análisis de las alternativas de secado de arroz y el posible uso de energía renovable o residual para esta tarea. Del análisis bibliográfico se deduce que es necesario reducir la humedad del arroz de cosecha hasta 12 a 14 % para su conservación y procesamiento. Se estudian también los distintos métodos usados para el proceso de secado. Son necesario 20 kWh de
electricidad y 14 l de combustible como índice promedio de consumo energético para secar una tonelada de arroz de 23 % humedad inicial. Se analizaron las capacidades de secado de dos fuentes energéticas elegidas, la primera es la del calor residual de los Grupos Electrógenos que mostró que con el uso del calor residual de un motor Hyundai 1,7 MW a 85 % de carga se puede lograr secar 8,3 toneladas de arroz durante una hora y en el uso de la cascarilla de arroz como combustible para el
secado de arroz son necesarios 38 kg para secar una tonelada de arroz.
In the paper being presented, the alternatives for drying of rice using renewable or waste energy has been analyzed. A detailed review of literature on rice is performed which shows the necessity to reduce the moisture content of rice up to 12 to 14% for its preservation and processing. The various methods used for drying and energy sources proposed for its consumption has been presented. For the required analysis, 20 kWh of electricity and 14 l of fuel were taken, as an average rate of energy consumption for drying one ton of rice from 23% of initial moisture. With this index the analysis of the drying capabilities of two energy sources chosen was done, the first source analyzed was the waste heat from electric generators which shows that the usage of waste heat of a Hyundai motor 1.7 MW can be used to dry 8.3 tons of rice per hour. And in the usage of rice husks as combustible for drying it is necessary 38 kg of rice husks for drying one ton of rice.
In the paper being presented, the alternatives for drying of rice using renewable or waste energy has been analyzed. A detailed review of literature on rice is performed which shows the necessity to reduce the moisture content of rice up to 12 to 14% for its preservation and processing. The various methods used for drying and energy sources proposed for its consumption has been presented. For the required analysis, 20 kWh of electricity and 14 l of fuel were taken, as an average rate of energy consumption for drying one ton of rice from 23% of initial moisture. With this index the analysis of the drying capabilities of two energy sources chosen was done, the first source analyzed was the waste heat from electric generators which shows that the usage of waste heat of a Hyundai motor 1.7 MW can be used to dry 8.3 tons of rice per hour. And in the usage of rice husks as combustible for drying it is necessary 38 kg of rice husks for drying one ton of rice.
Descripción
Palabras clave
Arroz, Secado, Consumo, Fuente, Paddy, Rice, Drying, Consumption, Power, Paddy