Development of occupancy-related ventilation control for Brunel University Library.

Smith B E; Prowse R W; Owen C J.

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Smith B E, Prowse R W, Owen C J.

carbon dioxide, controlled ventilation, library, mechanical ventilation, microprocessor, university

Year:

1984

Bibliographic info:

5th AIVC Conference "The implementation and effectiveness of air infiltration standards in buildings" Nevada, US, 1-4 October 1984

A microprocessor system is being developed for occupancy related ventilation control of mechanical ventilation in Brunel University Library. The objective is to reduce space heating costs by decreasing the input of (cold) fresh air to the building below existing (heating season) levels, when the number of occupants in the building is sufficiently small to allow this. The occupancy levels can be measured in terms of CO2 level in the exhaust duct. The microprocessor control system is operational when linked to a CO2 monitor. The control system senses the CO2 level and the computer sends an appropriate signal to reset the fresh air, exhaust and recirculation dampers, to maintaina preset CO2 level. A previous study has indicated fuel cost savings of about $1500 per annum.

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