Drying corn on aerated floor anyone?

[sjt01]

Can you (sjt01) or anyone else tell me what the air flow through the grain should be to maximise the drying process and minimise the time spent on the drying floor, I know you can have too much airflow, I have an airflow meter and can set the fan to the correct speed, what ever that should be ?

The HGCA (guess it is now AHDB) guide states 180 m3/hour per tonne of grain, but our test always used to be that a handkerchief spread on top of the grain should baloon up, not be blown away or lay flat.

 

[woody 1]

The HGCA (guess it is now AHDB) guide states 180 m3/hour per tonne of grain, but our test always used to be that a handkerchief spread on top of the grain should baloon up, not be blown away or lay flat.

Thank you.

 

[yellow belly]

Thanks for the explanation, I’m learning every year since going to on-floor

Another question, if drying say 16 - 18% Wheat would you use gas to correct humidity at night and keep drying 24hrs or turn off overnight and use the drier humidity day time air ??

Use heat at night to blow 24 hours a day it take a while for the air to start drying after a stop
also warmer air at a given rh removes more moisture per cubic metre than cool air so whe it is over 20 c an hour blowing removes more water from the heap
that is also the principle for stirrers once the average moisture is dry enough stir to mix the grain and equalise the moisture in every grain
floor stores at under 2 m depth dry easly but over 3 m much more difficult