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

Contains 51 papers

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Local control of ventilation in large buildings is considered to be a main issue in energy savings regarding the huge energy losses that are usually induced by such large volumes.
Cordier N., Michel P.
The main objective of the demonstration project LabSan is the innovative energetic retrofitting of a research laboratory building (3724 m² net floor area) which can serve as an outstanding and guiding example for a large number of existing laborat
Göttsche J., Gabrysch K., Schiller H., Kauert B., Schwarzer K.
A significant part of existing educational buildings have to be retrofit in the next years inFrance.
Cantin R., Guarracino G., Morain M.
The paper presents the results of the analysis of the impact of various ventilation systems on indoor air quality and energy consumption, performed for a typical Polish elementary school that was built in 1970s.
Ferdyn-Grygierek J.
The aim of the project is to study, develop, build (prototype system) and evaluate an energy efficient demand controlled hybrid ventilation system for dwellings in a cold climate.
Blomsterberg A., SandbergvE., Lonnberg M.
For retrofitting as well as for new buildings a good airtightness is an important issue.
Dorschky S.
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.
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
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.
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.
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.
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.
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.
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.
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.
Sheffield City Council in the UK identified some dwellings of non-standard construction that needed to be refurbished.
Sharples S., Goodacre C.