IAQ

What if all the devices in your life could connect to the internet? Not just computers and smartphones, but everything: clocks, speakers, lights, door bells, cameras, windows, window blinds, hot water heaters, appliances, cooking utensils, you name it. And what if those devices could all communicate, send you information, and take your commands. 

The programme of the AIVC Workshop: Ventilation for Indoor Air Quality and Cooling held in Sydney, Australia, on 23 March 2018.

Slides of the morning sessions at the AIVC Workshop: Ventilation for Indoor Air Quality and Cooling held in Sydney, Australia, on 23 March 2018:

• Session 1: Ventilation for indoor air quality
• Session 2: Ventilation for indoor air quality and health

Slides of the afternoon sessions at the AIVC Workshop: Ventilation for Indoor Air Quality and Cooling held in Sydney, Australia, on 23 March 2018:

• Session 3: Ventilation for cooling
• Session 4: Global performance of buildings and the role of ventilation

In the Framework of the IEA EBC Annex68 Subtask 1 working subject, we aimed at defining an indoor air quality index for residential buildings based on long- and short-term exposure limit values. This paper compares 8 indoor air quality indices (IEI, LHVP, CLIM2000, BILGA, GAPI, IEI Taiwan, QUAD-BBC and DALY) by using the French IAQ Observatory database that includes pollutant concentration measurements performed in 567 dwellings between 2003 and 2005. This comparison allows to make a relevant analysis of each index and determines their pros and cons i.e.

Demand controlled ventilation (DCV) can improve the energy performance of all kinds of ventilation systems, in residential and non-residential buildings and is already part of the European Lot 6 and Ecodesign regulations and standards. However, the lack of recognition of DCV in SAP (Standard Assessment Procedure) forms a great barrier for the use of this technology in the UK. A methodology was developed to prove the guarantee on good IAQ, with potential saving on heating and auxiliary energy by modulating ventilation rates based on actual demand.