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The 32nd AIVC and 1st TightVent Conference - Towards Optimal Airtightness Performance,  was held in Brussels, Belgium, 12-13 October 2011.

Contains 60 papers.

Volume content
Nano-scale Aerosol Deposition Model for CFD in Indoor Environmental Analysis

The overarching objective of this study was to develop a numerical model based on computational fluid dynamics to predict aerosol concentration…

Jun Narikawa, Cong Li, and Kazuhide Ito
Sensitivity study for architectural design strategies of office buildings in central Chile: Effectiveness of nocturnal ventilation

Office buildings in Chile show higher cooling than heating energy demand. The climate of the country show important differences between cities by the…

Waldo Bustamante, Felipe Encinas and Francisco Sánchez de la Flor
Basis study about prediction to air flow environment in cross ventilated room by neural network

In many parts of Asia as typified by Japan, conditioning of the indoor thermal and air environments using natural ventilation since ancient times. When…

Tomoyuki Endo
Performances of DAHT connected to building airtightness and indoor hygrothermal climate

As building insulation level increases, the coupling of ventilation systems with building enveloppe airtightness becomes an important issue in order to…

Masy Gabrielle, Lebrun Jean, Gendebien Samuel, Nicolas Hansen, Marc Lengele, and Luc Prieels
Pressure distribution in large buildings during airtightness tests

When conducting airtightness tests of buildings, you must ensure that all building parts to be measured have air connection, so that the test object can be…

Stefanie Rolfsmeier, Paul Simons
Interlaboratory tests for the determination of repeatability and reproducibility of buildings airtightness measurements

The issue of the uncertainty of building airtightness measurements has built up a greater importance since this topic was introduced in many regulations…

Christophe Delmotte, Jelle Laverge
The quality framework for Air-tightness measurers in France: assessment after 3 years of operation

The 2012 French thermal regulation will include a minimum requirement for residential buildings envelope airtightness, with two options to justify its…

Valerie Leprince, Rémi Carrié and Myriam Olivier
Quality system for airtightness measurement of buildings

In 2002 the Association for Air Tightness in Buildings (FLiB e. V.) established a certification procedure for airtightness testers in Germany. As…

Oliver Solcher
Shelter in place effectiveness in the event of toxic gas releases: French and Catalan assessment approach

Origins of toxic gas clouds may be diverse, including accidental releases due to industry or to hazardous materials transportation, or biological or…

M.I. Montoya, G. Guyot, E. Planas
Integrated Approach of CFD and SIR Epidemiological Model for Infectious Transmission Analysis in Hospital

The indoor environment can play a significant role in the transmission of and exposure to various contaminants. In the case of some emerging aerial…

Hiroaki Asanuma and Kazuhide Ito
The applicability of glazing system with dynamic insulation for residential buildings

It is essential to reduce the inordinate amount of energy used for climate control in buildings. To reduce heat loss in residential buildings, it is…

Shinsuke Kato, Sihwan Lee
Experimental evaluation of supply-only ventilation effectiveness

Nowadays, indoor air quality has become a major concern. Regarding the fact that people spend most of their time indoors, it is necessary to study the…

Mireille Rahmeh, Claude Algourdin, Michèle Potard and Karim Limam
Measured performance of three types of energy program houses in two U.S cities

This paper examines two similar studies in Phoenix, Arizona and Houston, Texas that compared the actual energy performance of three classes of homes –…

Shaun Hassel, Jonathan Coulter, Ben Hannas
Impact of the filtration system on the indoor-outdoor particles concentration relationships in an air conditioned office building

The objective of this study is to measure the impact of various classes of filters in the HVAC system on the IAQ in an office building. It aims at…

Eva Rendek, Alain Ginestet, Dominique Pugnet
Measurement of pollutant emissions in two similar very low energy houses with cast concrete and timber frame

This article is devoted to Indoor Air Quality (IAQ) in two low energy houses, with different frames (cast concrete (I-BB) and timber frame (I-OB)) built in…

Franck Alessi, Michael Sollaris
Measured public benefits from energy efficient homes

The objective of this paper is to summarize results of two studies that compared Baseline, ENERGY STAR® and Guaranteed Performance homes co-located in…

Jonathan Coulter, Benjamin Hannas, Colby Swanson, Michael Blasnik and Eric Calhoun
U.S commercial building airtightness requirements and measurements

In 1998, Persily published a review of commercial and institutional building airtightness data that found significant levels of air leakage and debunked the…

Steven J Emmerich, Andrew K Persily
Preliminary analysis of U.S residential air leakage database v.2011

Air leakage and other diagnostic measurements are being added to LBNL’s Residential Diagnostics Database (ResDB). We describe the sources of data that…

Wanyu R. Chan and Max H. Sherman
Low-energy buildings with night ventilation and air- to- air heat exchangers - Case studies and analysis

This study presents some results from a monitoring project with night ventilation and earthto- air heat exchanger. Both techniques refer to air-…

Jens Pfafferott, Martin Fischer, Doreen E. Kalz
Ventilation solutions in net zero energy buildings, the Elithis Tower case study

This paper focuses on ventilation solutions of a net zero energy building. We present the monitoring results after two years as part of the PHD…

Oscar Hernandez, Francis Allard
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