The 25th AIVC Conference, Ventilation and retrofitting, was held in Prague, Czech Republic, 15- 17 September 2004.

Contains 51 papers

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The Book of Proceedings from the 25th AIVC Conference "Ventilation and retrofitting", Prague, Czech Republic, 15-17 September 2004.
To get closer from comfort and energy levels of new buildings conciliating economical viability for the big retrofitting market : the challenge opens the way to the most innovative ventilation systems.
Savin J.L., Jardinier M., Siret F.
For retrofitting as well as for new buildings a good airtightness is an important issue.
Dorschky S.
The purpose of this study was to assess indoor air quality as well as actual ventilation in renovated school classrooms. A typical naturally ventilated school building was chosen to install different air inlet units in identical classrooms.
Jurelionis A.
In recent years, the housing market in China has expanded tremendously due to economic development. Building envelopes have become more and more airtight because of improvements in building technology and concerns on energy conservation.
Guo L., Chen B., Peng F. Lewis J. Owen
Hybrid ventilation is one promising approach to reduce energy consumption in office buildings. On the one hand, a minimum air change rate is supplied to the rooms, even if the windows are closed.
Pfafefferott J., Herkel S., Knapp U.
Our commitment to improve both air quality and energy savings in existing dwellings involves scopemeasurements campaigns.
Siret F., Jardinier M.
This study deals with the ventilation performance of two storey dwellings employing stack effect ventilation to satisfy the overall ventilation requirement. The SRF (Supply Rate Fulfillment) index was used as a ventilation performance index.
Tajima M., Sawachi T., Okabe M.
Research has shown that highly efficient solar powered ceiling fans improve thermal comfort and potentially provide health benefits when air conditioning or conventional ceiling fans are not available, such as during the 2003 summer heat waves in
Lubliner M., Douglass J., Parker D., Chaser D.
Steel truss structures, covered with a PVC thin sheet of matt light colour, were used in recent time for the construction of three new classrooms in the University of Catania (southern Italy).
Marletta L., Evola G., Sicurella F.
COOLHOUSE demonstrates the use of passive cooling techniques in southern regions of Europe which are aimed at giving comfortable summer conditions in domestic scale buildings without using mechanical cooling systems.
Burton S., Fjearem A.
This paper summarizes the work within the EU RESHYVENT project in regard to design parameters for the performance assessment of hybrid ventilation systems. A framework for performance assessment based on simulation was developed.
Dorer V., Weber A.
Recent studies in Switzerland showed that in large non residential buildings, which can be compared for typology and ventilation needs, the consumption of electricity for mechanical ventilation can vary considerably from case to case.
Bozzolo D., Gattoni L.P., Laube G.
How can hybrid ventilation and natural ventilation significantly improve the indoor climate in retrofitted office and education buildings?
Andersen A., Hagelskjaer S., Havgaard M.
This paper deals with the relevance of Computational Fluids Dynamics (CFD) results confronted tomeasurements carried out under uncontrolled thermal conditions.
Akoua J.J.A.A., Allard F., Beghein C., Collignan B., Millet J.R.
This paper addresses the issue of the compliance of residential ventilation systems with building regulations.
Carrié F.R., Garin D.
The purpose of this system is to provide one improved ventilation system allowing significant good indoor air quality, heating (and cooling) energy savings and acceptable thermal comfort on summer, by using especially renewable energy.This concept
Jardinier M., Berthin S.
An idea to build a demonstration house fitted with a hybrid ventilation system arose when Brno University of Technology joined the RESHYVENT project. There has not been much attention paid to the residential ventilation in the Czech Republic.
Jicha M., Charvat P., De Gids W., Meester A.
The aim of this paper is to investigate the effect of improved air distribution on symptoms and self-evaluated productivity in a landscape office in which the air was distributed with ventilated cooled beams.
Niemelä R., Kemppilä S., Korhonen P., Nykyri E., Reijula K., Seppänen O.
More than 700 million of measured data, 730 days, 55 dwellings: the HR-VENT hybrid ventilationdemonstration project applied in NANGIS (France) on a set of occupied collective dwellings is closely linked to its stakes.
Siret F., Savin J.L., Jardinier M., Berthin S.