Post harvest engineering introduction objectives post harvest losses of cereals, pulses and oilseeds importance optimum stage of harvest. Threshing traditional methods mechanical threshers - types principles and operation-moisture content measurement direct and indirect methods moisture meters equilibrium moisture content. Engineering properties of agricultural produces.

Psychrometry importance Psychrometric charts and its uses - Drying principles and theory of drying - thin layer and deep bed drying - Hot air drying - methods of producing hot air - Types of grain dryers - selection - construction, operation and maintenance of dryers - Design of dryers

Principles air screen cleaners adjustments cylinder separator- spiral separator magnetic separator- colour sorter-inclined belt separator length separators -effectiveness of separation and performance index

Principles and operation maize sheller, husker sheller for maize - groundnut decorticator-castor sheller -material handling belt conveyor screw conveyor chain conveyor-bucket elevators-pneumatic conveying.

Paddy processing parboiling of paddy methods - merits and demerits dehusking of paddy-methods merits and demerits rice polishers types constructional details -polishing-layout of modern rice mill wheat milling pulse milling methods Millets and Winnower oil seed processing.