Demand Controlled Ventilation Systems : CO2 Controlled Ventilation Systems
Metelskiy, Konstantin (2011)
Metelskiy, Konstantin
Mikkelin ammattikorkeakoulu
2011
All rights reserved
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2011111914843
https://urn.fi/URN:NBN:fi:amk-2011111914843
Tiivistelmä
The subject of the project was a research about the CO2-based demand controlled ventilation.
The thesis starts with literature review. The first chapter provides clear understanding of the main concept of CO2-based DCV, required ventilation rates and CO2 differential, information about human breathing and the way it influences the air quality in the interior of the building. In the second chapter there is main benefits of demand controlled ventilation.
The third chapter provides CO2 measurement technology. There are two types of sensors to measure CO2 concentration with help of the IR absorption method. The first is non-dispersive infrared (NDIR) absorption sensor and the second is photo-acoustic sensor. In the next chapters are given information about application of demand controlled ventilation, design considerations for demand controlled ventilation, energy efficiency and design example of demand controlled ventilation.
DCV system controls the amount of outdoor fresh air supply, depending on the number of people in a building and their activity. DCV makes it possible to maintain the needed ventilation and improve indoor air quality while saving energy. Such systems benefit both building operators and building occupants.
The thesis starts with literature review. The first chapter provides clear understanding of the main concept of CO2-based DCV, required ventilation rates and CO2 differential, information about human breathing and the way it influences the air quality in the interior of the building. In the second chapter there is main benefits of demand controlled ventilation.
The third chapter provides CO2 measurement technology. There are two types of sensors to measure CO2 concentration with help of the IR absorption method. The first is non-dispersive infrared (NDIR) absorption sensor and the second is photo-acoustic sensor. In the next chapters are given information about application of demand controlled ventilation, design considerations for demand controlled ventilation, energy efficiency and design example of demand controlled ventilation.
DCV system controls the amount of outdoor fresh air supply, depending on the number of people in a building and their activity. DCV makes it possible to maintain the needed ventilation and improve indoor air quality while saving energy. Such systems benefit both building operators and building occupants.