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Thesis (M.S.)—University of Nebraska—Lincoln, 1968. Department of Agricultural Engineering.


Copyright 1968, the author. Used by permission.


There are four parameters generally used to describe the treatment of grain by the continuous-flow dielectric heating system.Two of these parameters, the frequency of the electric field between the load plates and the electric field intensity, remain at reasonably constant values during treatment because of their primary dependence upon fixed elements in the system and their slight dependence upon the characteristics of the grain being treated.However, the remaining two parameters, the length of exposure to the electric field and the final grain temperature, are highly correlated and dependent to a large extent upon the characteristics of the grain being treated.

Because of the interdependence of the exposure time and the final grain temperature, it would be impossible to hold all four treatment parameters constant when there is variation in the characteristics of the grain being treated.

It is, therefore, the objective of this thesis to present the design and construction of a device which automatically regulates the final grain temperature through adjustment of the exposure time by means of the grain flow meter.

Advisor: Stuart O. Nelson