LoginA method for estimating the reliability of mechanical ventilation systems in dwellings hasbeen developed. The analysis is based on component level reliability models interconnectedby so called fault-tree schemes.
18th AIVC Conference - Athens, Greece - 23-24 September 1997
The 18th AIVC Conference, Ventilation and Cooling, was held in Athens, Greece, 23-24 September 1997.
Contains 70 papers
Volume content
System safety analyses of the performance of mechanical ventilation systems - the quantitative approach. | 1997 | English
Deterministic and non deterministic methodologies for the prediction of the air velocity in single sided natural ventilation configurations. | 1997 | English
An extensive experimental program on single sided natural ventilation was carried out within the frame of PASCOOL EC research project.
Introduction of air infiltration and ventilation in a simple modelling for energy consumption estimation in air conditioned buildings. | 1997 | English
This study reports on the introduction of air infiltration and mechanical ventilationin a model for energy consumption estimation. The model applies to air conditionned nonresidential building and is developped to need few inputs.
A method for the economical optimisation of the design temperatures and the connecting flows of a cooling system. | 1997 | English
The planning parameters of a cooling system for ventilation, for example the vaporization andcondensing temperatures, heat capacity flow rates, design temperatures and designtemperature differences have a strong influence on the investment and ope
Continuously rising energy costs, the demand for reduction of CO2-emission and theprohibition of CFC-containing refrigerants create a base for new concepts of air-conditioning(A/C) systems.
There are certain conditions which are of interest when designing for natural ventilation ofcommercial buildings.
This paper deals with the interzonal air movement in a building, throughhorizontal openings, under natural convective conditions.
IEA Annex 27: comparison of performances of different ventilation systems in similar dwellings. | 1997 | English
The main goal of IEA Annex 27 "Evaluation of ventilation systems" is to develop tools toevaluate ventilation systems in an objective way in terms of indoor air quality, energy,comfort, noise, life cycle costs, reliability and other building relate
Passive cooling by natural ventilation, salt bath modelling of combined wind and buoyancy forces. | 1997 | English
We examine conditions under which the natural forces of wind and buoyancy may beharnessed in order to provide ventilation for cooling.
EC-THERMIE project Heerlerbaan: multifunctional appliances for retrofitting residential buildings. | 1997 | English
Many post-war residential buildings in the Netherlands have collective heating systems with poor energy efficiency. Also ventilation and DHW systems usually do not comply with current requirements.
Evaluation of thermal comfort impact of direct fresh air supply in Winter. Part 2: comparison of different ways of air supply to exhaust only ventilation. | 1997 | English
IEA Annex 27 "Evaluation and Demonstration of Domestic Ventilation Systems" has been engaged in developing the evaluation tools for various aspects of their performance.
Stack ventilation and cooling for urban sites - research project funded under the UK "Partners in Technology Programme". | 1997 | English
The paper outlines the value of roof intake air ducts to serve largely passively ventilatedand cooled buildings in urban areas.
Within the EU project NATVENT, which deals with the application of natural ventilation in office type buildings, one of the items to be studied was controlled air flow inlets.
Evaporative cooling is an interesting alternative to conventional compressor refigerationsystems for air-conditioning.
Controlling ventilation and space depressurization in restaurants in hot and humid climates. | 1997 | English
Testing was performed in 9 restaurants to identify uncontrolled air flows and pressureimbalances, building and duct system airtightness, building air barrier location, pressuredifferentials, building air flow balance, and ventilation rates.
Costs are one of the main decision factors for the selection of domestic ventilation systems.This often leads to a ventilation system that just meets the requirements of buildingregulations at the lowest initial costs.
The work discussed here concerns the conditions of comfort obtained in a room cooled by a fan coil in relation to the form of air flow obtained. It is based both on practical experiment and on numerical simulation using CFD code.
A study of window location and furniture layout to maximise the cooling effect for an urban Taiwanese apartment by night ventilation. | 1997 | English
The year-round climate of Taiwan is warm and humid. Apart from the hottest months in summer, there are four months suitable for nocturnal ventilation to acquire indoor cooling.
Solar control devices placed in front of large building openings disturb air flow and theradiation transfer.
In this paper the potential of night ventilation techniques is investigated. Extended real scalemeasurements have been performed, in three buildings, under free floating and airconditioned operation.