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The age of ventilation: Controlling the indoor climate!
News
November 29, 2021

The age of ventilation: Controlling the indoor climate!

The indoor climate has a significant influence on people´s well-being in the buildings. Since we all perceive our environment differently, we need to create conditions that most people feel good about.

To ensure good air quality and a pleasant indoor climate at all times, buildings are equipped with intelligent indoor climate control systems – for greater comfort and better energy efficiency.

“Poor air quality makes people tired.”

Intelligent climate control system

An indoor climate system is a complex system that is able to detect and regulate the indoor conditions in a building based on several parameters such as input data and required conditions.

The intelligent indoor climate system enables time-controlled and demand-controlled climate functions, offering the parameters-controlled and time-controlled variations, increased building occupant´s comfort, optimised operation and ensured maintenance, etc.

The indoor climate in buildings is controlled by a complex system called HVACR (heating, ventilation, air-conditioning and refrigeration). The HVAC system has many components, but one of the most important ones is all about indoor climate control, and that are sensors.

“Controlling indoor climate means providing well-being and energy saving in automated form.”

Controlling indoor climate via sensors                      

The control system based on the input parameters is simple. When a specific parameter (for example, the increase of temperature increase and/or relative humidity) gets above the requirement (usually based on the values from building standards), the sensor gives input to the HVAC system that handles the regulation of the indoor climate in the building.

The method is simple, however, the technology is advanced.

  • Method: when the room is occupied, the comfort of its users drives how the climate is controlled; when it is not in use, energy efficiency is at the forefront.
  • Technology: indoor climate is monitored, optimised with sensors and individually selectable settings.

Apart from indoor temperature and indoor relative humidity, the CO2 concentration is the most important indicator for the quality of indoor air.

  • The CO2 content of the indoor air increases with the number of people and duration of their stay as well as the intensity of their physical activities.
  • The higher the CO2 load in the room, the more fresh air the controller demands.

Note that today we also use other more advanced sensors, such as VOCs, etc.

“Indoor climate means that the control of air quality and thermal comfort must be used when planning/designing/operating buildings, meaning: temperature, humidity, CO2 and air movement in the room, and other parameters.”

Read more!

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Update: Wide variation in how parameters are regarded in environmental certification systems

IEQ = IAQ + ITQ + ILQ + ISQ

Indoor thermal quality also known as thermal comfort!

Transitioning from IAQ to IEQ!