Assessment of Ventilation Efficiency in Library Room Burapha University Sa Kaeo Campus

Abstract

Indoor-air ventilation is a factor influencing air quality and accumulation of air pollutants which can pose health risk on human living in the building. This research aimed to study the efficiency of air ventilation in the Library of Burapha University, Sakaeo campus by applying carbon dioxide concentration accumulated in each period as an indicator. Air change rate per hour (ACH) was also calculated. The studied area was divided as 4 zones; 1) area of book circulation counter and staff room, 2) area with 7 wooden bookshelves, 3) area with 8 aluminum bookshelves and 15 wooden bookshelves and 4) computer room located in the middle of the library with only one entrance. The results showed that the highest average carbon dioxide concentration found in zone 4 (1,905 ppm) followed by zone 1 (1,882 ppm), zone 2 (1,005 ppm), and zone 3 (812 ppm) respectively. The calculated ACH was in the range of 0.04 – 0.18 ACH indicating an inadequate ventilation and hence being confirmed by elevated carbon dioxide accumulation in all studied zones.  Keywords :   indoor air quality,  carbon dioxide,  ventilation