From January 1st 2013 on, the French energy performance regulation will demand that the airtightness level is justified and that airtightness of a building should be below 0,6m3/h/m² at 4Pa for single family housing and 1m3/h/m² for multi-family d
33rd AIVC and 2nd TightVent Conference - Copenhagen, Denmark - 10-11 October 2012
The 33rd AIVC and 2nd TightVent Conference - Optimising Ventilative Cooling and Airtightness for [Nearly] Zero-Energy Buildings, IAQ and Comfort, was held in Copenhagen, Denmark, 10-11 October 2012.
Contains 61 papers.
The efficiency of air-to-air heat recovery ventilation units is of great importance for EP calculations (energy performance of buildings) throughout Europe.
DIN 4108-7 requires a limit of q50 ≤ 3.0 m³/m²h for the air permeability of large buildings. Even stricter limits with respect to q50 can be found at DGNB [German Sustainable Building Council] and in the Swiss MINERGIE Standard.
The influence of the selective ventilation in the thermal performance of modern naturally-ventilated houses in Goiânia – Brazil | 2012 | English
The aim of this paper is to investigate the influence of the selective ventilation in the thermal performance of modern naturally-ventilated houses built in the 1950’s and 1960’s in Goiânia, located in middle-west of Brazil.
Air leakage characteristics of dwellings in high-rise residential buildings in Korea | 2012 | English
Reliable airtightness data is needed to calculate the estimate of air infiltration and the thermal loads for building energy efficiency and indoor comfort.
Natural ventilation is increasingly considered a promising solution to improve thermal comfort in buildings, including schools.
Comparison of displacement ventilation and mixing ventilation systems with regard to ventilation effectiveness in offices | 2012 | English
Air quality in offices depends on the ventilation system ability to remove contaminants from the occupied zone.
Uncertainties in airflow network modelling to support natural ventilation early stage design | 2012 | English
Despite a lot of Integrated Design Process guidelines and procedures have been developed in the last few years, more specific energy design procedures are needed to push the implementation of passive design techniques.
Addressing summer comfort in low-energy housings using the air vector: A numerical and experimental study | 2012 | English
This article deals with summer comfort and room air distribution in low-energy housings. In such buildings, the efficient thermal insulation and air tightness make it crucial to efficiently dispose of the heat released by the internal gains.
Diffuse ceiling ventilation is a novel air distribution device that combines the suspended acoustic ceiling with ventilation supply.
Design of HVAC systems for deprived community houses in yorkshire and the humber region in the UK | 2012 | English
The stock housing of England (UK) constitutes the oldest housing stocks in the world.
by space and water heating. The high costs of energy are a national matter not only for their economic and environmental implications, but also because they contribute largely to a social problem, known as fuel poverty.
Proposal for updating french regulation concerning airtightness measuring equipments’ calibration | 2012 | English
French standard for airtightness measurements is NF EN 13829. It is completed by French application guide GA P50-784, to set calibration rules more precisely, among other issues. This guide was published in 2010.
In France, starting January 1st, 2013, the energy performance regulation will impose an airtightness treatment for every new residential building.
Reducing energy consumption in an existing shopping centre using natural ventilation | 2012 | English
The energy consumption needed for establishing a good indoor climate in shopping centres is often very high due to high internal heat loads from lighting and equipment and from a high people density at certain time intervals.
Hybrid ventilation (HV), as a combination of automated natural ventilation (NV) and balanced mechanical ventilation (MV), provides opportunities to use the advantages of both ventilation systems during the seasons in order to reduce energy demand
The UK Government strategy for all new homes to be built to zero carbon standards by 2016 is based upon a “fabric first” approach to design.
BR10 requires that all new residential constructions should be built as low energy housing. In order to meet these requirements residential buildings must be equipped with far more complex technology, than conventional housing.
The objective of this study was to develop a method for hourly calculation of the operating temperature in order to evaluate summer comfort in dwellings to help improve building design.
Sizing rules in residential ventilation standards lack uniformity in both methodology and resulting design flow rates.