Due to the fact that loss of heat due to transmission is on the decrease, the loss of heat due to ventilation is becoming more important. Heat recovery units must be put into use to decrease the heat loss due to ventilation. If mechanical ventilation systems are used to create a minimum air change rate, air-tight windows are necessary - but if no ventilation grilles are used they are out of place.
The dairy plants of type MVA 1930 are compact structures with a floor area of 92mx120m. Despite this size the dairy plants - with the exception of certain special areas - can be naturally ventilated over long periods of time. The pen climate parameters for a mechanically and a naturally ventilated plant of the above mentioned type are essentially similar. It seems, therefore, unfounded to restrict natural ventilation to buildings of a certain width. It is rather the formation of the envelope of the building which should be seen as the deciding criterion.
Compares the guidelines for indoor air quality and minimum ventilation rates outlined in the DIN 1946 and ASHRAE standards. Discusses air quality-controlled ventilation. Outlines the principles and standards governing both natural ventilation and controlled ventilation with heat recovery in residential buildings.
Discusses the concept of ventilation efficiency. Sources of moisture production in residential buildings are given, and the minimum ventilation requirements for moisture removal are presented for a typical 3 person dwelling for various outdoor temperatures.
Briefly discusses the major concerns regarding indoor climate raised by the 'Indoor Air 1984' Conference in Stockholm and other such conferences: the need for an international information system on the influence of building materials andventilation of occupant activity, building materials, operation and maintenance; ISO and ASHRAE standards; passive smoking; radon; sick buildings, humidity; ionisation; and ventilation efficiency.
Indoor air quality is regarded as the single most important health issue facing us in the 1980's. The total number of serious health effects related to IAQ in non- industrial buildings have been miniscule compared to the total building stock.
A benchmark study by Geomet Technologies, Inc, is developing data on the air quality effects of weatherizing a home. One effort under this study has bee nhas been an experiment carefully designed to quantify the relationships between the thr
Since 1973 there has been greater emphasis in Sweden on energy production and energy saving, but the products have often been of dubious design or benefit, and too expensive to be applied to normal residential Scandinavian housing. The economic
The article discusses how far the builder is to blame for condensation and its subsequent problems of mould growth. The UK Building Regulations of 1985 for ventilation and condensation do not go far enough in discouraging inadequate forms of
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