Methods to reduce the CO(2) concentration of educational buildings utilizing internal ventilation by transferred air.
Indoor Air
; 24(1): 71-80, 2014 Feb.
Article
en En
| MEDLINE
| ID: mdl-23841677
ABSTRACT
The aim of this study is to develop internal ventilation by transferred air to achieve a good indoor climate with low energy consumption in educational buildings with constant air volume (CAV) ventilation. Both measurements of CO2 concentration and a multi-room calculation model are presented. The study analyzes how to use more efficiently the available spaces and the capacity of CAV ventilation systems in existing buildings and the impact this has on the indoor air quality and the energy consumption of the ventilation. The temperature differences can be used to create natural ventilation airflows between neighboring spaces. The behavior of temperature-driven airflows between rooms was studied and included in the calculation model. The effect of openings between neighboring spaces, such as doors or large apertures in the walls, on the CO2 concentration was studied in different classrooms. The air temperatures and CO2 concentrations were measured using a wireless, internet-based measurement system. The multi-room calculation model predicted the CO2 concentration in the rooms, which was then compared with the measured ones. Using transferred air between occupied and unoccupied spaces can noticeably reduce the total mechanical ventilation rates needed to keep a low CO2 concentration.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Ventilación
/
Dióxido de Carbono
/
Contaminación del Aire Interior
/
Movimientos del Aire
/
Modelos Teóricos
Tipo de estudio:
Prognostic_studies
Límite:
Humans
País/Región como asunto:
Europa
Idioma:
En
Revista:
Indoor Air
Asunto de la revista:
SAUDE AMBIENTAL
Año:
2014
Tipo del documento:
Article
País de afiliación:
Finlandia