Drying first page 2024

Our New Project

Test unit - Infradryer

Thanks to the Grant given to us, sponsored by the European Union, we are happy to present our new drying project: The InfraDryer #3. This project aims to develop and demonstrate a full-scale infrasonic dryer for grain and biomass, using a solar-powered heat pump. Building on a small pilot, InfraDryer#2, it targets a 40% reduction in energy use compared to conventional dryers. By operating year-round (drying grain during harvest season and wood chips or other biomass at other times), it becomes cost-effective and fossil-free, helping farms meet the 2030 climate goals. Four test runs between 2025 and 2026 will validate performance and efficiency, confirming its potential to replace oil-based systems and significantly reduce CO₂ emissions.

The Dryer

Test unit - Infradryer

The InfraDryer#2 test unit, with a drying capacity of 80 kg per hour, is now fully designed and assembled. This unit aims to reduce energy consumption by 50% compared to conventional drying technologies by enhancing the mass transfer of water to the air with infrasound

Following successful tests, we are moving forward with the construction of InfraDryer#3. This unit will offer a capacity of 1,250 kg per hour, supporting our goal of a full system comprising four units to achieve a total capacity of 5 tons per hour.

The Drying Process

The principle of drying wheat in a hot air dryer

The air flow has two functions:

  1. Mass transfer of water from the surface to the air
  2. Transport of water

Mass transfer requires high air velocity. For water transport, a low air speed is desirable.

The principle of drying wheat in an infrasound dryer​

Grain_image_2

The mass transport of water from the surface to the air is enhanced by an intense infrasound with a high particle velocity.

Watch it in action