Presence-controlled heating regulation – Control of operational temperature in rooms when people are present


Ref.-No. 5008

At RWTH Aachen University, a procedure was developed that makes it possible to individually control the operational temperature depending on the presence of people in various zones of a room or building.

By controlling the operational temperature, which not only takes into account the air temperature but also the thermal radiation in the respective zones, the control concept also accounts much better for actual human heat perception. A comfortable temperature for presence phases and a reduced temperature when no people are present can be set in the individual zones. The targeted heating of individual zones during presence phases reduces energy costs when no people are present through the associated reduction in the necessary heat output. What’s more, it is possible to precisely set the thermal conditions in very small zones. Individual heat perception by people and various activities and degrees of activity can thus be accounted for in individual zones. 

Keywords: Temperaturregelung, Raumtemperatur, operative Temperatur, Raumklima, Anwesenheitssteuerung, Temperature control, room temperature, room climate, presence control

Commercial Opportunities

Presence-controlled heating adjustment in various zones can be applied in almost any kind of building. Office buildings, private households, and public institutions, such as universities and schools, are particularly well-suited as these buildings have many different heating zones with potential for individual temperature setting. Heating control that individually considers single zones while taking into account the respective presence or lack of presence in these zones thus offers the potential to reduce energy costs as well as the possibility of increasing thermal comfort.

Competitive Advantages

  • Individual temperature control of various room and building zones
  • Reduction in energy costs through targeted control of the room temperature in the event that people are present in individual zones
  • Improved consideration of personal heat perception by observing the operational temperature

Potential areas of application

  • Offices
  • Private households
  • Universities, schools, etc.
  • And much more

Current Status                                                                                                       

A German patent application has been submitted to the DPMA. On behalf of RWTH Aachen University, we offer interested companies the possibility of licensing and the further development of the technology.

Relevant Publication

Definition der operativen Temperatur, DIN EN 13779:2005-05


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