Doll patent - energy saving system
for commercial Buildings by
vertical heat recirculation

eating of industrial buildings require in comparison relatively high energy consumption. According to physical laws, without heat recirculation systems, heat goes up - independently from what kind of heat generation is used for the heating of the industrial building. This results in high transmission heat losses to the outside and in high energy costs. During the summer, industrial buildings are often too hot, and they lack sufficient fresh air supply plus soft and comfortable ventilation.

Conventional ceiling fans provide a comparatively
unsatisfactory solution: At high speed, the air is
only centrally guided downward - the high impact speed on the ground makes the opposite
Warm air layers faster in counterproductive ways
rise upwards. Also arise unpleasant Drafts among the systems. at low speed, the air too little specific kinetic energy given and the heat rises in half
Height again on thermally upwards. It gives
no homogeneous heat distribution. Of further
energetic disadvantage is the comparatively high
Power consumption.

Only specially developed and patented turbulators from DOLL enable a targeted recirculation of the heat to the floor area. Without any draft effects, the heat is recirculated and stopped from going up, regardless of the existing heating system. The result is a comfortable and consistent climate in industrial buildings. With the motor technology from DOLL and its high and efficient EC-motor, devices consume less power than traditional ceiling fans. They are significantly more effective, produce better airflow and less noise emissions and have no draft effects. DOLL Turbulator® technology permits penetration of complex high shelf systems and transports heat in cold corners.

• targeted heat circulation without draft effects through the turbulator heat is circulated and stopped from raising up
  
  
  
• it results in a comfortable and consistent climate in industrial buildings
  
  
  
• high energy savings through reduced operation times of the heating systems and pump cycles
  
  
  
• important for obtaining a certification for new buildings according to EnEV (Energy Saving Ordinance)
  
  
  
• comparatively much lower power consumption than other systems
  
  
  
• Doll’s turbulator jet technology works even in buildings with high machines and/or storage facilities and transports heat in cold corners. Condensation of humidity and as a result, prevention of rust and mold growth on warehouse goods.
  
  
  
• Stainless steel or powder coated housing in the desired color as per RAL are continuously and comfortably adjustable via the energy-saving control from Doll or can be connected to the existing building automation technology.
  
  
  
• No additional “energy destruction” through rule systems such as transformer switching devices but instead 0-10 V control
  
  
  
• Unique, radial, and even heat circulation in Helix geometry through patented turbulator
  
  
  
• improved air climate in supermarkets
  
  
  
• more comfortable working climate for your employees
  
  

Independently from the type of heating systems, Turbulatoren^® are the cheapest energy efficiency measures with simultaneous advantages of feeling comfortable in new buildings as well as older buildings! Subsequent insulation does not have the same energy effect at comparatively much higher investment costs!

Heat recovery in winter
Ventilation in summer eg.
in the morning + in the morning
Outside air entry via
open skylights / RWA`s

Extraction of the heat bell /
Support the existing
thermal buoyancy +
Escape over open
Skylights + RWA`s im
Summer after-work

Ideal in sales rooms and production halls