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Of all the drying methods, low-temperature drying is potentially the most energy efficient technique and most adaptable to use of such alternate energy sources as solar and biomass. In addition, Brown et al. (1979) showed that low-temperature drying produces high-quality grain with a high steeping index, test weight and viability, and with a negligible amount of kernel stress cracking. Much past research has been aimed at producing computer models to simulate the low-temperature drying process how ever, because the temperature and moisture gradients are much smaller than in high-temperature drying, the process is more complex with alternate drying and rewetting of the kernels. Most of the modelling attempts have used one of the following three basic approaches: (i) use of non-equilibrium models based on heat and mass balances involving partial differential equations (ii) use of equilibrium models based on temperature and moisture equilibria between the drying air and the grain and (iii) use of a combination of equilibrium and non-equilibrium models.
simulation of low-temperature corn drying
Mittal, G. S. and L. Otten 1982. SIMULATION OF LOW-TEMPERATURE CORN DRYING. Canadian Agricultural Engineering 24(2):111-118.
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