Abstract
The dormitory and office are typical indoor environments in university. The ventilation rate is one of significant effect on indoor air quality. The objectives of this study are to measure the ventilation rates in dormitories and offices in summer and winter, and determine the effect factors on the ventilation rate. In this study, the college student act as CO2 emission source; indoor and outdoor CO2 concentrations were measured in the same time. During the sampling, the size of the dormitory, number of people and their activity were recorded. The ventilation rates of dormitories and offices in university were calculated according to indoor and outdoor CO2 concentrations. The results showed that the ventilation is very inadequate in dormitories, so we should take measures to improve the ventilation of dormitories; the effect of season, working condition and building type on the ventilation rate is very important.
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