KEHO - Static Pressure
Static Pressure is a measure of the amount of air pressure a blower must provide in order to force air through the crop stored in a bin. Static pressure is affected by the depth of the stored crop, the size and moisture content of the crop kernels, impurities (trash) in the stored crop and airflow.
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Product Details
Static pressure increases with:
- an increase of depth
- smaller-sized kernels
- more impurities
- an increase of airflow
Proper airflow is essential for successful aeration, natural air drying and pressure curing. It is moving air that absorbs moisture and carries it out of the bin.
The term airflow is defined as the volume of air that is generated by a blower and is usually measured in terms of cubic feet per minute (CFM) or liters per second (L/S). One CFM = 0.47 L/S, or 1 L/S = 2.1 CFM. The volume of air generated by a blower depends on its design, motor speed and horsepower.
Airflow is affected by static pressure. Airflow rates drop off quickly as static pressure increases. KEHO's blowers and air pumps are designed to produce optimum airflow at the higher static pressure ranges often encountered in crop drying.
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