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The 35th AIVC Conference " Ventilation and airtightness in transforming the building stock to high performance", was held in Poznań, Poland, 24-25 September 2014. Contains 86 papers.

Volume content
Ventilation and airtightness in transforming the building stock to high performance (Book of Proceedings)

The Proceedings of the 35th AIVC Conference "Ventilation and airtightness in transforming the building stock to high performance", held in Poznań,…

AIVC
Ventilation and airtightness in transforming the building stock to high performance (Slides)

The Presentations at the 35th AIVC Conference "Ventilation and airtightness in transforming the building stock to high performance", held in…

AIVC
Topical session: Status of the revision of EN ventilation standards supporting the EPBD recast

This session will discuss the major changes of the ventilation standards supporting the implementation of the Energy Performance of Buildings Directive…

Jaap Hogeling, Gerhard Zweifel
Tips for Improving Repeatability of Air Leakage Tests to EN and ISO Standards

Numerous tests are being performed throughout Europe. While most are or appear to be successful others have high calculated uncertainty values and others…

Colin Genge
The indoor air quality observatory - outcomes of a decade of research and perspectives

For over a decade now, the OQAI — Observatoire de la qualité de l’air intérieur [French observatory for indoor air quality] — has been leading research into…

Séverine Kirchner, Corinne Mandin
Model error due to steady wind in building pressurization tests

We have analysed the steady wind model error based on a simplified building model with one leak on the windward side and one on the leeward side of the…

François Rémi Carrié, Valérie Leprince
Temperature and pressure corrections for power-law coefficients of airflow through ventilation system components and leaks

The characterization of power-law coefficients of the airflow through ventilation system components and ductwork or building leaks should include…

François Rémi Carrié
Development of a Unique Thermal and Indoor Air Quality Probabilistic Modelling Tool for Assessing the Impact of Lowering Building Ventilation Rates

Adequate ventilation is necessary to maintain thermal comfort and remove indoor air pollutant concentrations (Crump et al., 2005). Indoor pollutant…

James McGrath, Miriam Byrne
Control of indoor climate systems in active houses

The term of “Active House” recently developed, addressing houses that target a balanced optimization of indoor environmental quality, energy performance and…

Peter Holzer, Peter Foldbjerg
ACH and airtightness test results in the Croatian and Hungarian border region

The article presents the results of our research, which was realized under a cooperation project between the University of Pécs, Hungary and the University…

László Fülöp, György Polics
Strategies for the planning and implementation of airtightness on existing sloped roofs

A project at the Energie- und Umweltzentrum (e.u.[z].) Springe looked into strategies how insulation and sealing components can be installed in existing…

Wilfried Walther
Optimal positioning of air-exhaust openings in an operating room based on recovery test: a numerical study

This study investigates the influence of outlet location on conventional, turbulent-mixing operating-room (OR) ventilation performance. This was done by…

Sasan Sadrizadeh, Sture Holmberg
CFD simulation of an office heated by a ceiling mounted diffuser

The paper investigates the possibility for using a traditional ventilation system with ceiling mounted diffusers to provide heating under winter time…

Bård Venås, Trond Thorgeir Harsem, Bent A. Børresen
Simulation analysis for indoor temperature increase and reduction of heating load in the detached house with buoyancy ventilated wall in winter

Detached residential wooden houses are a common type of housing in Japan. Decay of wooden components within the walls is easily caused by condensation or…

Kan Lin, Shinsuke Kato
Development of a decentralized and compact comfort ventilation system with highly efficient heat recovery for the minimal invasive refurbishment of buildings

To ensure adequate indoor air quality, ventilation is necessary in new constructions as well as in modernized existing buildings. In order to minimize…

Janez Zgaga, David Lanthaler, Christoph Speer, Rainer Pfluger
Measured moisture buffering and latent heat capacities in CLT test houses

This research investigates the significance of the moisture buffering and latent heat capacities in exposed cross-laminated timber (CLT) walls with the…

Ivana Katavic, Kristine Nore, Tormod Aurlien
Numerical simulation of indoor air quality - mechanical ventilation system supplied periodically vs. natural ventilation

Building integrated renewable energy sources e.g. photovoltaic system is one of the promised solution for improving energy efficiency in building. However…

Ewelina Kubacka, Dariusz Heim
Optimization of data center chilled water cooling system according to annual power consumption criterion

The paper presents optimization model of the chilled water based data center cooling system. The optimization procedure includes system technological and…

Piotr Kowalski, Mieczysław Porowski
Seasonal variation in airtightness

Airtightness of buildings is necessary to obtain healthy, sustainable and energy efficient buildings. Measuring the airtightness of a building has become…

Paula Wahlgren
Multi-zone demand-controlled ventilation in residential buildings: An experimental case study

Numerous studies have investigated the application of multi-zone demand-controlled ventilation for office buildings. However, although Swedish regulations…

Arefeh Hesaraki, Jonn Are Myhren, Sture Holmberg
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