protótipos para secagem de sementes de milho, em camada de 0,70m. A temperatura do ar de secagem foi de 47 ±3ºC, no secador comercial e de 40 ±1ºC, nos protótipos de secador. Foram considerados o tempo de operação, a posição das sementes na massa e o efeito na qualidade física. Para tanto, foram caracterizados o ar ambiente, o ar de secagem, as temperaturas e os teores de água na massa de sementes e realizados exame visual de fissuras internas e teste de coloração com tintura de iodo. Com baixa umidade relativa ocorre super secagem na camada inferior e retardamento na camada superior, resultando em gradientes de umidade das sementes, no final da secagem, de até 4,5 pontos percentuais. O aumento da temperatura do ar de secagem determina uma elevação na taxa de remoção de água e aumento da percentagem de sementes de milho com fissuras internas e quando a camada de sementes mais próxima da entrada do ar aquecido atinge teor de água inferior a 14%, se inicia a secagem da camada seguinte.Termos de indexação: Zea mays, secagem estacionaria de fluxo axial, fissuras internas. MONITORING THE PHYSICAL QUALITY OF MAIZE SEEDS DRIED IN A STATIONARY DRYERABSTRACT -The present study analyzed the physical performance of the stationary dryer with axial air flow distribution, using a commercial dryer compared with prototypes. Corn seeds were used in a 0.70m layer. The temperature of the drying air was 47 +/-3ºC, in the commercial bean dryer and 40 +/-1ºC in the prototype dryer. The operation time, seed position in the mass and the effect on the physical quality were consideed. For this, the ambient and drying air temperatures and the seed moisture content were characterized, internal fissures were examined visually and coloration test with iodine dye was applied. It was concluded from the results that with low relative humidity lower there is over drying of the lower layer and a delay in drying the upper layer, resulting in seed moisture gradients, at the end of the drying process of more than 4.5 percentile points; the increase in the drying air temperature determined the rise in the water removal rate and increases in the percentage of corn seeds with internal fissures and that the second layer of seeds began to dry when the first layer reached moisture content lower than 14%.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.