Hot Air Recirculation

Significantly reduce your Grain Dryer fuel costs by using Hot Air Recirculation

Save up to 24%* of your Grain Dryer fuel costs

How Does It Work?

The Grain Dryer fuel savings come from the reduction in the amount of fuel the Dryer consumes to heat the air to dry the grain.

The cooling air, from the lower levels of the Grain Dryer, which is unsaturated and of the highest temperature, is recirculated to the hot air side of the Dryer and remixed with the heated air.

Depending on the Dryer size, 25% to 30% of the warmest air in the Dryer is moved by the recirculation fan along transfer ducts to an additional plenum and mixed with the freshly heated ambient air.

*The actual percentage savings on Dryer operating costs by using Hot Air Recirculation can be significant and will vary based on:

  1. Hot air and ambient air temperature
  2. Crop type and moisture
  3. Dryer model & fan speed
  4. Ambient conditions

Some examples of the theoretical level of Grain Dryer fuel cost savings are:

125°C hot air temperature, 15°C ambient, percentage saving 16% to 18% depending on Dryer model selected.

70°C hot air temperature, 15°C ambient, percentage saving 21% to 24% depending on Dryer model selected.

Maximise Your Operational Savings

Increase your theoretical operational cost savings up to 35% by combining Hot Air Recirculation with:

  1. Automatic Grain Moisture Monitoring
  2. Grain Dryer Control via PLC Panel
  3. Insulation

Contact us today to discuss your Hot Air Recirculation needs

Call us on +44 (0)1404 890300 or email [email protected]

Which Type of Grain Dryer Should I Buy?

Which Type of Grain Dryer Should I Buy?

With over 70 years of experience, Perry of Oakley Ltd. are the UK’s most experienced manufacturer of materials drying and handling equipment. Our Dryers are relied on to manage a variety of crops, and in different climates all over the world.

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