Carbon monoxide and nitrogen dioxide were monitored in 12 homes on a real-time basis to determine their transient concentrations, their dispersion through the homes and day-to-day variation in pollutant levels. Kitchen ventilation was determined using sulphur hexafluoride tracer gas, and use of unvented gas appliances was monitored with thermo couples. A week-long measurement programme was undertaken in a wide range of homes to determine the distribution of carbon monoxide, nitrogen dioxide, particulates and organic compounds.
Final report on the performance of 177 low-energy houses at Pennyland, Milton Keynes, UK. Pressurization tests showed an air change rate of 0.3 ach for the Pennyland houses, compared to 0.7 ach for the control Neath Hill houses. Three quarters of the houses had some condensation and over a half had some mould growth.
The mean and dynamic internal and external pressures of an existing building (tennis hall) and a model of the building were measured and compared. Asystematic examination was made of the effects on wind-induced internal pressure in simple geometric models of flow profile, wind direction, building dimensions, openings and leakiness. Suggestions are proposed for changes to DIN 1055 Part 4. The Canadian, American, British and Swiss Standards on wind loads are compared.
The Alberta Home Heating Facility has been used over a five year period to attempt to understand the effects of retrofit procedures on the house structure as a whole. The percentage of total energy attributable toinfiltration is calculated, and the influence of furnaces on natural infiltration rates is discussed. Results of blower tests are given for the six modules and compared with measured infiltration rates.
Sixty houses built with widely different construction practices and located in different areas in upstate New York were monitored for airtightness (using fan pressurization) and integrated radon concentrations in indoor air, household water,
Describes automatic equipment for measuring thermal comfort based on resultant surface temperature, convective heat flux density, air temperature and relative humidity. Results obtained in an environmental chamber are presented and evaluated.
This study used a constant concentration tracer gas measurement system to measure the air infiltration rate of three modules simulating residential buildings in Canada. The results obtained were compared with computer predictions.
Naturally ventilated containers for international transport of hygroscopic commodities are now well established. Both theory and practice show that the greater the vent areas, the wider the range of conditions under which NVCs will succeed, but there are no established values for acceptable areas. Thetheory, conception and utilisation of NVCs are reviewed. Different vent configurations are tested for simulated and for real voyages.
Contains references and abstracts on laboratory techniques for analyzing formaldehyde, methodologies for identifying and characterizing a wide variety of organic contaminants and selected field studies of organic contaminants inindoor air.
Discusses indoor occupancy factors, including window opening habits, opening of internal doors, time spent indoors and patterns of occupancy, for inhabitants of the United Kingdom.
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