Arrangement and method for air management of a room

Abstract

An arrangement (1) for air management of a room (100) comprises ventilating means (10) for enabling exchange of air between the inside environment (102) of the room (100) and the outside environment (103) of the room (100); a stand-alone air purifier (20), which is arranged separately from the ventilating means (10), and which is adapted to remove pollutants from the air in the inside environment (102) of the room (100); and a control system (30, 31, 32), which is in communication with both the ventilating means (10) and the air purifier (20), and which is adapted to control operation of the ventilating means (10) and the air purifier (20) in dependence of air quality data relating to the inside environment (102) of the room and the outside environment (103) of the room, the control system (30,31,32) being configured to control the ventilating means (10) and the air purifier (20) differently depending on whether the air quality data relating to the outside environment of the room (100) is above or below a predetermined reference. Operation of the arrangement (1) is aimed at optimizing indoor air quality and minimizing energy consumption.

Description

FIELD OF THE INVENTION[0001]The invention relates to an arrangement and a method for air management of a room.BACKGROUND OF THE INVENTION[0002]Indoor air quality is an important issue which is closely related to human health and comfort. Pollution of indoor air constitutes a significant risk factor for various health problems in view of the fact that many people spend most of their time, for example, more than 90% of their time, indoors. In general, air pollutants can be one or more of particle pollutants, gas pollutants and microorganisms.[0003]Many buildings are equipped with a so-called HVAC system, i.e. a Heating, Ventilation and Air Conditioning system, for providing thermal comfort and acceptable indoor air quality. However, in some surroundings, particularly metropolitan cities, outdoor air pollution can be extremely severe, and it has been found that in such surroundings, the current HVAC systems are not capable of performing filtration of all particles to a sufficient exten...

AI Technical Summary

Benefits of technology

The invention is a control system for an arrangement of ventilating means and an air purifier that works together to constantly improve the air quality in a room while minimizing energy consumption. The system uses data from sensors and external websites to determine the best way to operate the ventilating means and air purifier based on the room's air quality and the outside environment. The system alternates between the ventilating means and air purifier based on the air quality outside the room, saving energy when the air quality is good. The control system is designed to optimize the performance of the arrangement by integrating the ventilating means and air purifier, ensuring the best possible air quality and minimizing energy consumption.

Problems solved by technology

Indoor air quality is an important issue which is closely related to human health and comfort.

Pollution of indoor air constitutes a significant risk factor for various health problems in view of the fact that many people spend most of their time, for example, more than 90% of their time, indoors.

However, in some surroundings, particularly metropolitan cities, outdoor air pollution can be extremely severe, and it has been found that in such surroundings, the current HVAC systems are not capable of performing filtration of all particles to a sufficient extent, wherein the systems are particularly not effective in removing relatively small particles from the input air.

Furthermore, most HVAC systems are not capable of removing various gas pollutants such as formaldehyde and other VOCs (volatile organic compounds) from the indoor air, because the filters used in those systems are not suitable for doing so.

Another shortcoming of HVAC systems is that the systems consume a lot of energy, especially when the systems are continually switched on for maintaining the air quality, which is often the case in practice.

If a stand-alone air purifier would be operated in an open room, the indoor air would be hard to clean by means of the air purifier as the source strength would be too high.

Hence, the carbon dioxide level can become too high in a relatively short period of time, wherein it is no longer possible to comply with national and / or global standards, which are often based on a value of 1,000 ppm as a threshold.

A stand-alone air purifier is not capable of removing carbon dioxide from air.

In general, assuming that the room has windows, ventilation can be realized by opening a window, but this may worsen the indoor air quality if the outdoor quality is very bad.

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