Contains 23 papers as follows: Keynote Paper The art of ventilation; Use of natural ventilation; Variations in householders' window opening patterns; Avoiding condensation and mould growth in existing housing with minimum energy input; Ventilation
3rd AIVC Conference - London, UK - 20-23 September, 1982
The 3rd AIVC Conference - Energy efficient domestic ventilation systems for achieving acceptable indoor air quality, was held in London, UK, 20-23 September 1982.
Contains 29 papers.
3rd AIC Conference: Energy efficient domestic ventilation systems for achieving acceptable indoor air quality (Book of Proceedings) | 1982 | English
For optimum building design it is of importance to investigate the comfort and the energy conservation obtained with different types of ventilation systems and levels of airtightness of buildings.
Measurements in a test room of 28.4 m3 located at the top of a 3-storey building have been made to determine ventilation rates of different natural ventilation systems.
The heat losses from small houses, due to transmission and ventilation, are estimated. The estimation i s based up on the house owness daily readings of electricity and water meters, and their notes on behaviour influencing the energy use.
A method to assess the health and comfort changes among tenants after draught proofing of their flats. | 1982 | English
The aim of the present study is to measure the possible health effects among tenants after certain characteristic energy conservation measures had been taken in their dwellings. Changes in comfort are also included.
The purpose of the project has been to determine the saving in energy obtained in the practical operation of an FTX-system -that is, a fan-controlled supply and exhaust ventilation system with heat recovery - compared to an F-system, which is sole
The total energy consumption for five detached houses with air change rates of around 3 per hour right after construction, was measured and compared with estimated values, over a three-year period. Air change in the bedrooms was also measured.
Ventilation and energy consumption. Practical experience of problems related to ventilation in single family houses. | 1982 | English
Discusses the problems of designing ventilation for small houses. Small houses are considered to be far too elementary and there is no total view of the balance of energy and no regard for the interplay between different flows.
This paper discusses the potential for achieving an "energy-efficient" ventilation system by improving design procedures for natural ventilation. It considers ventilation requirements and the meaning of the term energy-efficient ventilation.
The normally used equation for calculation of infiltration flow rates into a house is a power law of which the exponent n is normally assumed to be 0.66 but sometimes values of 0.5 or even 1 can be seen in the literature.
Estimation of rate of air infiltration based on full-scale wind pressure measurements. | 1982 | English
Natural and forced ventilation are directly and indirectly influenced by the pressure distribution around a building. Results of full-scale pressure measurements on a typical Swedish timber house are presented.
Reduction of air infiltration and the development of controlled mechanical ventilation in France. | 1982 | English
Since 1974 the french Authorities have insisted on energy being saved in all buildings. There was very strong pressure on manufacturers to obtain better sealed window frames .
Energy conservation by regulation of the central mechanical ventilation system in high rise buildings: realistic or not? | 1982 | English
The investigation was divided into several parts: 1, measurements of a mechanical ventilation system, 2, calculation model for this system, 3, measurements of the air leakage of the facades of a flat and 4, calculation model for this flat.
The role of mathematical modelling in the design of energy efficient ventilation systems. | 1982 | English
Explores the various roles that mathematical models can play in the design of energy efficient ventilation systems.
Field trials of ventilation efficiency in buildings equipped with mechanical ventilation systems. | 1982 | English
Gives results from fiel trials of the performance of various mechanical ventilation systems. Carries out measurements in buildings built during the seventies, using the tracer gas decay technique with N2O. Tests 3 cases:< 1.
Describes experiments carried out in 4 low energy electrically heated houses incorporating extra thermal insulation and heat recovery mechanical ventilation systems.
Uses the SEGAS "Autovent" constant concentration apparatus to measure the fresh air entering and the local ventilation rate in each cell of amulti-celled dwelling with both natural and mechanical extract ventilation.
Describes a simple method of controlled ventilation comprising an extract system and air inlets.
Distinguishes the problems of designing natural ventilation systems for summer and winter conditions and discusses in detail the objectives, methods and some field studies directed towards the solution of winter ventilation problems.< Describes
Avoiding condensation and mould growth in existing housing with the minimum energy input. | 1982 | English
Detailed studies of public sector modernisation programmes show that the principal problem resulting from lack of thermal insulation and inappropriate methods of heating and ventilation is condensation and mould growth.