The 1995 edition of the National Building Code of Canada has extensively changed the ventilation requirements for housing. The code includes detailed prescriptive requirements, because in the past ventilation system design and compliance has varied. In this piece we are focusing on the new requirements in the National Building Code. These requirements apply in all areas except for Ontario and B.C. where provincial requirements were modified several years ago, and will be continued with only minor modifications.
Without control high solar fractions arc difficult to obtain from Trombe walls, direct solar gains, and rock bins. Integration of all these techniques by control is absolutely necessary. A short review is given of the available sensors, actuators, and control systems. The control of individual solar techniques as well as several combinations are discussed; for instance, the control strategy for the combination of direct solar gains and Trombe Wall. Based on literature general conclusions are given about the energy efficiency of these systems in relation with the control strategy.
Passive solar building are developed to take advantage of the solar heat to reduce the cost of heating. This is obtained by windows with large glass areas in the facade of the building. This idea has some disadvantages. The large window area gives large transmission losses and during warm periods of the year overheating can occur. These disadvantages can be overcome by adding extra window components to the building, like a shutter, shading devices and vent windows. In order to study the capabilities of the building and the various components a computer simulation is developed.
Login