Natural and/or mechanical ventilation. Naturliche und/oder mechanische luftung.

In most office buildings, the continuous renewal of air cannot be guaranteed by means of ventilation through windows during any optional time. It is known (in the case of radiators and window ventilation) that when a window is open the ventilating heat cannot be recovered and other heat losses will occur.< The paper proves that the heating of a building by air is a greater energy saver then the conventional solution through static heating and window ventilation.

Energy consumption in industrial buildings during shut-down periods. Seisokkiajan energiankulutus teollisuushalleissa.

Sponsored by the Ministry of Trade and Industry, a consulting firm performed an investigation of the possible energy savings in industrial halls outside working hours. The ventilation should be closed during shut-down periods, and air change through natural draught cut down to a minimum. The ventilation by leakage of an industrial building may be estimated at 0.1-0.5 air changes per hour, therefore the tightness of the constructions is imperative. The decrease of the temperature in industrial halls during non-working hours is imperative.

Natural ventilation of rooms:a simplified analytical study. La ventilazione naturale degli ambienti studio analitico semplificato.

Presents an analytical procedure for evaluating the air change rate in a room due to the temperature difference between the interior and exterior, which occurs when a door or window is opened.

A simple method for representing the total ventilation behaviour of an apartment building

The use of sealants and gaskets are often recommended as an effective energy saving measure. However, the energy saved depends on the function of building and ventilation as a total system. This paper describes the effect of sealing the outer walls in residential buildings with natural and exhaust ventilation respectively. With natural ventilation, making the walls twice as tight reduces the air exchange by half, whereas with exhaust ventilation the reduction in air exchange is very small.

Ventilation and infiltration.

Briefly reviews ventilation requirements, types of ventilation , driving mechanisms for natural ventilation and infiltration, natural ventilation, infiltration and air leakage, air leakage sources, empirical models and infiltration measurement.

Domestic ventilation. Luftung von wohnbauten.

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.

Natural ventilation and energy consumption of dwellings.

Reports on an investigation concerning ventilation and energy conservation in dwellings, which was financed by the EEC and the Dutch Ministry for Housing and Public Works. Concludes that:< 1. In single family houses air flow through cracks and joints causes more ventilation then is required.< 2. Flats with more airtight construction provide better control of ventilation.< 3. The amount of wind protection plays a part as important as airtightness.< 4.

Distribution of airborne pollution in ventilated buildings with stratified recirculating airflow. Forureningsfordeling i ventilerede lokalermed plan recirkulerende luftstromning

In many buildings the incoming ventilation air causes recirculating airflow. Diagrams show typical examples. The incoming air stream enters below the ceiling level and carries air from the building with it causing air movement greater than th

Ventilation of buildings. Luftung von Gebauden

Lists the factors in a building (condensation, comfort, heat loss etc) which are affected by ventilation, mechanical or natural. Treats the driving forces of air exchange in buildings. Describes the four basic flow phenomena involved in air e

Ventilation:British Guides

The ventilation recommendations set out by the British Standards Institute Code of Practice, the Building Research Station Advisory Papers, and CIBS are outlined.

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