Why Stored Potatoes Need Air Through the Pile
Stored potatoes remain alive: they respire, release heat and moisture, and change the atmosphere within a pile. This video explains how through-pile airflow, controlled outdoor-air exchange and humidity management support a bulk potato store.
Follow the air through the process
Account for a living crop
Tubers consume oxygen and release carbon dioxide, moisture and respiratory heat. Heat can accumulate in the interior of the pile.
Distribute air through the pile
A supply fan and under-pile distribution route move conditioned air through the spaces between tubers. Uniform distribution matters as well as total fan volume.
Control fresh air and return air
Mix outdoor air with return air to regulate the supply conditions. Controlled freshening removes accumulated carbon dioxide while admitting replacement air.
Balance cooling and moisture loss
Temperature, relative humidity and airflow affect the balance between removing heat and drying the crop. Crop variety, condition and storage phase determine the operating plan.
Airflow function
- Overcome the loaded pile and distribution-system resistance.
- Carry respiratory heat away from the interior.
- Support a controlled mixture of return air and outdoor air.
What can change the result
- A poorly reached pile region retains heat.
- Recirculation alone allows the store atmosphere to accumulate carbon dioxide.
- Uncontrolled dry supply air increases moisture loss from tubers.
Start with the complete air path
Share your layout and the information you already have. Unknown values can be identified before a configuration is selected.
Match the fan to this air path
Evaluate LONGWELL industrial centrifugal fan families for the clean supply-air path. Provide the loaded-store resistance, airflow target and environmental conditions so the fan and control duty can be assessed together.
Where it sits
In the clean supply-air path feeding the under-pile distribution ducts or floor. The mixing arrangement regulates outside and return air before the supply reaches the tubers.
Why consider this configuration
The supply fan must overcome the loaded pile and distribution resistance while reaching the interior. Fan duty, air temperature, humidity and freshening controls need to be assessed together for the crop and storage phase.
Check the result in your equipment
Discuss your potato-store airflow
Send crop load and pile geometry, the distribution layout, airflow and pressure target, air temperature and humidity range, plus return-air and freshening controls. Ask for a supply-fan review at the loaded-store duty.
A layout, installation photos or your existing model is enough to start the discussion.