Tunnel dryer is a combination of two or more cabinet dryers arranged in a serial order in a tunnel. It has found application in drying of both food and non-food origin but its scale up process has hitherto been based on experimentation and experience without comprehensive scientific background which often leads to the poor performance of those dryers. In this study, theoretical modelling for tunnel drying which could effectively predict the dryer’s performance was developed. The modeling process involved the segmentation of drying parameters into an equipment and material models. Equipment model entails the parameters supplied by the dryer such as air temperature, velocity, humidity profiles and heat transfer to the samples being dried (cassava chips).... |