Method and apparatus for aeration of stored grain

Details Method and apparatus for aeration of stored grain Method and apparatus for aeration of stored grain

1983-12-30

1985-06-11

Tanner, Harry

Automatic temperature and humidity regulation

Humidity control

236 49, 34 54, 98 55, F26B 2100, E04H 700

Patent

active

045223351

ABSTRACT:
A method and apparatus for the controlled aeration of stored grain is disclosed that provides for aeration of grain when ambient temperature and relative humidity levels are within a specified range of optimum levels. Aeration of grain is initiated when both the current ambient air temperature is within an acceptable range of the recent average air temperature, and the equilibrium moisture content supported by the current air temperature and relative humidity levels is within an acceptable range of the desired grain moisture content. Long periods between aeration are avoided by progressively widening the range of acceptable current ambient air temperature and equilibrium moisture content levels when less than a predetermined amount of aeration has occurred. The method also provides for the maintenance of a uniform temperature within the stored grain, and assists in avoiding extreme storage temperatures. The apparatus disclosed provides for continuous monitoring of ambient atmospheric conditions, and initiates aeration of stored grain automatically, in accordance with the inventive method, without continuous operator involvement.

REFERENCES:
patent: 3408747 (1968-11-01), Steffen
patent: 3563460 (1971-02-01), Nine
patent: 3831450 (1974-08-01), Schipke et al.
patent: 4045878 (1977-09-01), Steffen
patent: 4053991 (1977-10-01), Steffen
patent: 4175418 (1979-11-01), Steffen et al.
patent: 4253244 (1981-03-01), Kranzler
patent: 4386471 (1983-06-01), Bowrey et al.

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