Proceedings of a workshop organised as part of the UK contribution to the Future Buildings Forum, which was officially started in June 1991 under the Energy Conservation in Buildings and Community Systems Programme of the International Energy Age
The effectiveness of a ventilation system in terms of the age of air and its ability to remove contaminants will be significantly affected if part of the exhaust air is recirculated. In this paper the consequences of recirculation of air in mechanical ventilation systems on ventilation effectiveness parameters is examined. Two alternative methods of establishing ventilation effectiveness parameters relating to air change efficiency and contaminant removal effectiveness when recirculation of air is present are presented.
Does your workforce regularly complain about irritating symptoms such as headaches, runny noses and itching? Have your supervisors noticed that people are taking much more sick leave, performing badly, or are unhappy with their surroundings? If so, it could be a case of Sick Building Syndrome. The problem could be with the building, the working environment or the way in which work is organised.
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