期刊
BUILDINGS
卷 10, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/buildings10080135
关键词
indoor air quality (IAQ); CO2 production rate; CO2 concentration; occupancy estimation; demand controlled ventilation (DCV); energy efficiency
资金
- University of Pisa [PRA 2018-19, 2018_38]
Air ventilation rate plays a relevant role in maintaining adequate indoor air quality (IAQ) conditions in public buildings. In general, high ventilation rates ensure good indoor air quality but entail relevant energy consumption. Considering the necessity of balancing IAQ and energy consumption, a correlation between the number of occupants obtained from analysis of CO2 concentration variation is presented as a general element for controlling the operation of heating ventilation and air cooling (HVAC) systems. The specific CO(2)exhalation rate is estimated using experimental data in some real conditions in university classrooms. A method for the definition of optimal values of air exchange rate is defined, highlighting that the obtained values are much lower than those defined in current technical standards with possibilities of relevant reduction of the total energy consumption.
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