Measurements of air flow were carried out in a library building. The constant-injection and pulse-injection tracer-gas techniques were used to measure air flow in air handling units and to estimate flow rates supplied to each floor. Tracer-gas measurements were compared with measurements made using a Pitot-static tube. Air exchange rate, ventilation efficiency and age of air were examined. The concentrations of carbon dioxide (CO2), carbon monoxide (CO), formaldehyde (HCHO) and dust particles were monitored. In addition, a questionnaire was completed by library staff and users in order to provide a subjective assessment of indoor air quality.
Get full access to this article
View all access options for this article.
References
1.
Riffat S.B.A comparison of tracer-gas techniques for measuring airflow in a ductJ. Inst. EnergyLXIII(1) 18-21 (1990)
2.
CibseGuide Volume B: Installation and equipment data (London: Chartered Institution of Building Services Engineers) (1986)
3.
CibseGuide Volume A: Design data (London: Chartered Institution of Building Services Engineers) (1986)
4.
Ventilation for acceptable indoor air quality ASHRAE Standard 62-1989 (Atlanta, GA: American Society of Heating, Refrigerating and Air-conditioning Engineers Inc) (1989 )
5.
Raatschen W.Demand controlled ventilating system-State of the art review ( Sweden: International Energy Agency) ( 1990)
6.
Au Yeung Y.N. , Chow W.K. and Lam Y K VSick building syndrome-A case studyBuilding and Environ.26(4) 319-330 (1991)
