The superinsulated home will require a slightly higher investment and considerably more care in construction. The benefits seems to outweigh by far the disadvantages, however. The superinsulated home will require a smaller heating system and w
Asks the question, is home energy conservation a good investment, and offers two approaches to economic analysis - 'payback' and 'life cycle costing', that can help to simplify the decision making process.
Factsheet on the solar greenhouse, including an introduction to the design differences between solar and traditional greenhouses, and sections on the attached solar greenhouse, the role of conservation, solar greenhouse additions: zoning, siting the solar greenhouse, design of the solar greenhouse, framing, building permits, foundation and structure, glazing, thermal mass, heat transfer, summertime operation and cost and performance.
Describes an investigation to show that the hourly, daily and monthly energy needs of simple buildings can be estimated using only limited available weather data for the location. The data needed are the mean daily maximum and mean daily minimum temperatures and the average clearness index for each month. Uses a residential building in Ottawa, Canada for the analysis, using a computer program ENERPASS.
Indoor radon concentrations are approximately lognormally distributed, with the range of concentrations varying from a one in one thousand risk of contracting lung cancer to high one per cent risk. Source strength rather than ventilation rate seems to be the major factor causing the broad distribution in concentrations. There is general agreement that the most important mechanism for radon entry into homes is not diffusion but pressure driven flow of soil gas that carries radon from the soil into the homes.
Summary of conference discussions on formaldehyde, including character- ization, sources, measurement techniques, health effects, mitigation techniques and conclusions: 1. Elevated formaldehyde concentrations, higher than 100 ppb, are measured in many indoor environments. Formaldehyde concentrations relate positively with temperature and decrease with the age of the source. 2. Urea formaldehyde bonded products can be improved to such a degree that indoor levels can be reduced to ambient levels if the materials are properly installed and used. 3.
Provides the text of the 68 papers presented at the symposium, arranged under the following headings - Plenary session, Advanced developments in ventilation, Control of toxic and explosive contaminants, Advances in tracer gas use, Ventilation for residential and modern office buildings, Advances in local exhaust technology, Ventilation for control of carcin- ogens and biohazards, Ventilation measurement and control, Sources emission rates, Filters, Air recirculation and energy conservation.
Contains further papers, reports and conference summaries from the 3rd International Conference on Indoor Air Quality and Climate, 1984, as well as afull list of authors and titles of papers printed in this and the previous volumes.
R-2000 Homes have specific requirements for mechanical ventilation, usually incorporating heat recovery ventilators. Performance testing was carried out on 12 residential heat recovery ventilators in 1984, representing the range of equipment
Resulting from experiences of a project by the German National Energy Research Foundation (NEFF), and further investigations, a recommendation is presented on the permeability of building envelopes in residential buildings, according to on hand ventilation devices. To find out the permeability, the air leakage at 50 Pa is evaluated. This can be found out with the differentiated pressure reading of the building.
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