Unlike conventional ventilation systems, the displacement ventilation system supplies air in the low region of a room, while the exhaust opening is usually placed near the ceiling. When partitions are used in the occupied zone, the diffusion of supply air may be obstructed; thus, the existence of the partition may present important effects on air diffusion, retarding the removal of a contaminant. The present study considers the effects of office partition layout on air diffusion and indoor contaminant control in a large partitioned office equipped with a displacement ventilation system.
The Canadian Code for Energy Efficiency in New Houses will feature prescribed thermal characteristics of the envelope components of houses. These will be selected primarily on the basis of life cycle cost. A new method was developed to perform the life cycle cost evaluations of energy efficiency options for walls, roofs, windows and basement walls, based on their performance within the energy system of a house. Existing analytic techniques were adapted to perform the energy analysis and life cycle cost calculations.
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