Products

We have been manufacturing rotary regenerative heat exchangers for more than 20 years now. During that period we have gradually become a globally known manufacturer of exchangers for heat recovery. Our product range of rotary heat exchangers represents the highly efficient solution for energy savings of all ventilation and air conditioning systems, from small flats, through office premises, production halls to special industrial applications and largest industrial buildings. Rotary heat exchangers by Kastt excel by their state-of-the-art technology, precise manufacture and high efficiency in energy savings. We do our best to be one step ahead through innovations and continuous improvements.

 

ROTARY HEAT EXCHANGERS

Highly efficient rotary heat exchangers by KASTT belong among the top products in the market with solutions for heat recovery. They are designed to save energy from all ventilation and air conditioning systems, from small flats, through office spaces, hospitals, schools, production halls to special industrial operations.

Rotary heat exchangers by KASTT excel by their state-of-the-art technology, precise manufacture and high efficiency in energy savings. We do our best to be one step ahead through innovations and continuous improvements. At the same time we are able to adapt to customer-specific requirements and needs.

Main benefits

  • Highly efficient thermal energy transfer (heat and cold)
  • Transfer of humidity together with thermal energy
  • Low tendency towards rotor freezing
  • Low installation width in air-handling units

 

The principle of rotary regenerative heat exchangers operation – regeneration vs. recuperation

Rotary regenerative heat exchangers work on a principle of energy accumulation – alternate transfer of energy contained in exhaust air into the accumulation mass and subsequent transfer of such energy into supply air. The heat exchanger is regenerating.

Rotary regenerative heat exchangers are often confused with recuperation heat exchangers. In recuperators (cross plate heat exchangers in most cases), both air streams are separated by a solid wall. Recuperators work on a principle of heat transfer by leading the heat in a thin wall of the exchanger (heat exchanging plane).

One of the biggest benefits of rotary regenerative heat exchanges is that besides the transfer of heat they are also able to transfer humidity (hygroscopic version), i.e. they not only transfer sensible, but also latent heat. This is why they offer the biggest efficiency compared to other heat recovery systems.

The KASTT heat exchangers are designed with the aim to reach the maximum efficiency in heat and humidity recovery – up to 90 %, which contributes to lower contamination of the environment.

The biggest possible diameter of the exchanger rotor, of up to 5 m, represents approx. 150000 m3/h of nominal air volume.

Download more information about the KASTT rotary heat exchangers here