Reviews the overall aims and methods of the Conservahome Project, devised under the joint initiative of the Saskatchewan Office of Energy Conservation and the Saskatchewan Housing Corporation. The primary aims of the Project are to:< 1. Define the technical and economic problems of retrofit by conducting retrofit work on 6 houses< 2. Use the 6 houses as demonstration centres< 3.
Describes more then 35 kinds of small inexpensive exchangers from countries including the USA, Canada, Japan, and Sweden heat exchangers are designed to expel stale air with full recovery of the heat energy in the outgoing air. Includes detailed information on indoor pollutants, a directory of manufacturers, distributors and experts, an index of trade names, a bibliography and a subject index.
The purpose of the study was to identify the air tightness levels of a group of 176 houses in Saskatoon, using a pressure test procedure. The houses were categorized according to age, air tightness levels, construction style and contractor. It was found that age was the most significant variable affecting airtightness.
Very little quantative information is available for the amount of air infiltraton in New Zealand houses, but recent measurements by the New Zealand Meteorological Service indicate greater rates in windy conditions then in North America.A tracer gas technique was used in determination of air infiltration, and experimental results from typical New Zealand timber framehouses at several sites are presented.
Describes wind tunnel study where both static and dynamic, local and spatially distributed loads have been measured for a variety of representative low-rise building geometries. Determines experimental pressure coefficients for the interior of buildings with various porosities and wall openings. Describes the assumptions made to reduce the large quantities of data to a small set of simplified pressure coefficient charts appropriate for use in a code or standard.
Reports on a comprehensive wind tunnel study of low-rise buildings at the University of Western Ontario, aimed at the definition of simple code specifications for the wind loading of such buildings. Describes an innovative technique for determining spatially-averaged time varying wind loads over various tributary areas of a structure. This data has been processed by computer to produce a time-history of more generalized loadings. Measurements have been carried out in turbulent flow conditions characteristic of thenatural wind.
Covers the theory, economics, and practice of draughtproofing existing buildings. The theory section deals with methods of calculating and measuring ventilation losses. The economics section covers financial costs and benefits, while in the practical section various methods of draughtproofing are categorized and described together with their advantages and disadvantages.
Makes general suggestions for future buildings and their ventilation methods with the aim of creating improvements to avoid the faulty design of the 1960's with their high energy consumption. Considers the characteristics of natural ventilation and mechanical ventilation with respect to ventilation heat loss. Recommends the use of `ventilation on demand' for bathrooms, w.c.'s and kitchens using individual extract ventilation units for each room.
Considers the reasons for advocating mechanical domestic ventilation. Discusses which factors provide for an optimum climate in rooms. Treats room temperature, air movement in the occupied zone, air purity and humidity, odours, noise. Illustrates how mechanical ventilation should be arranged to provide correct indoor ventilation and the different ventilation principles involved: gravity ventilation, fan-assisted exhaust ventilation and supply and extract ventilation. Illustrates typical applications of these systems to single family houses.
Reviews the development of methods and results achieved. The methods have resulted in a proposal for a Nordic test method for measuring ventilation efficiency (local air change frequency) using tracer gas techniques and measurements carried out for two different ventilation systems.
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