LoginThe main problem in natural ventilation is that its efficiency depends very tightly on the meteorological conditions : high wind velocity and outside temperature lower than inside are optimal conditions for efficient ventilation.
22nd AIVC Conference - Bath, UK - 11-14 September 2001
The 22nd AIVC Conference, Market Opportunities for Advanced Ventilation Technology, was held in Bath, UK, 11-14 September 2001.
Contains 42 papers
Volume content
Increased global warming and deterioration of the ozone layer have stimulated interest in the use of renewable energy systems.
Overview of key aspects in the proposed energy performance regulation for the Flemish Region in Belgium. | 2001 | English
It is expected that there will be in 2003 an energy performance regulation for the Flemish Region. In the framework of the VLIET-EPIGOON project, a proposal for such legislation is under preparation.
Airtightness of 12 non residential large buildings. Results from field measurement studies. | 2001 | English
We investigate the airtightness of 12 French non-residential buildings, by means of experimental fan-depressurization tests.
Earth-air heat exchangers in the Belgian climate: Analysis of the potential with a 3D modelling technique. | 2001 | English
Earth-air heat exchangers can be used to reduce energy consumption in building ventilation systems. The idea is to pre-heat air in winter and pre-cool air in summer using the thermal capacity of the soil.
Air filters may be used to reduce indoor airborne concentration which is one of the main indoor air pollutants. Air filters performances have to be measured in order to be able to select the right product for a given application.
In this paper, measurement and simulation results are presented that demonstrate the energy performance of a recently built ecological house in Helsinki, Finland.
Energy performance standardisation and regulation: state-of-the-art, challenges and ongoing actions. | 2001 | English
Energy Performance standardisation and legislation is receiving an increased interest in many countries.
This paper illustrates the airtightness and ventilation performance of a recently built ecological house in Helsinki, Finland.
Energy conservation in buildings with integration of advanced ventilated wall components. | 2001 | English
The performance of a Ventilated wall component under real weather conditions was tested, during two weather seasons, winter and summer.
Evaluation and development of innovative and energe efficient ventilation strategies. | 2001 | English
A potential conflict may exist between energy saving and good indoor climate.
The paper reviewed the supply opening models of describing inlet boundary conditions for indoor airflow simulation firstly. Then examples of isothermal free air jets from a grille are presented to validate full representation of supply openings.
This paper briefly exams the role of the building envelope in determining the internal environmental conditions in buildings and the scope for holistic design of building services and building envelope.
In this study a parametric analysis was carried out of the interaction between louvres and various perforated mesh screens. This type of arrangement is common in through-the-wall ventilators used for natural ventilation in buildings.
The NEN 5128 "Energy performance of dwellings and residential buildings- Determination method" [1] describes a procedure to calculate the energy performance coefficient EPC. The requirements are given in the Dutch Building Decree [2].
Thermal bridges are the typical locations for moisture and mould problems in buildings. Low surface temperatures in combination with a high humidity level in buildings can lead to severe problems and complaints by the occupants.
Testing a method for checking the performance of ventilation systems in commercial buildings in France. | 2001 | English
Ventilation performances in existing buildings are not well known, in France. They are not often checked. This paper shows how a method for checking the performance of ventilation could be applied in France.
European project pr EN13465 from CEN TC 156/WG2/AH4 gives a monozone model for airflow calculations in dwellings.
Ventilation plays an important role in the RT 2000 regulation. The ventilation system is of course taken into account, but also the building envelope airtigthness on which this paper focuses.
Building-integrated photovoltaic (PV) systems are increasingly common in developed countries and have the potential to contribute significantly to electricity generation as a benign alternative to fossil fuel generation.