AIVC

The objective of this study was the development of a new test method for portable indoor air cleaners.

There exists a significant body of literature on energy and indoor air quality impacts of envelope leakage. In fact, this topic has been studied since the 70s and has lead to many publications, in particular within the Air Infiltration Centre established in 1979 that has become the Air Infiltration and Ventilation Center (AIVC) since 1987.

This study is about the effectiveness of the indicated ventilation measures in the day-to-day operations of three types of hospitality businesses:

Our lack of understanding of the health risks related to air pollutants exposure in buildings is perceived as a major deficiency, even though 80% of our time is spent indoors. In this context the Observatory on Indoor Air Quality (OQAI) has been set up by the French authorities to collect data on population exposure to indoor pollutants in various indoor environments (dwellings, schools, offices, sports and leisure centers, etc.) to be used for public policies development. Accordingly, OQAI undertook a national survey on indoor air quality in dwellings with a four-fold objective: 

Air tightness is an important property of building envelopes. It is a key factor in determining infiltration and related wall-performance properties such as indoor air quality, maintainability and moisture balance.
Air leakage in U.S. houses consumes roughly 1/3 of the HVAC energy but provides most of the ventilation used to control IAQ.
The Lawrence Berkeley National Laboratory has been gathering residential air leakage data from many sources and now has a database of more than 100,000 raw measurements.

A survey was conducted to determine occupant use of windows and mechanical ventilation devices; barriers that inhibit their use; satisfaction with indoor air quality (IAQ); and the relationship between these factors.

A questionnaire was mailed to a stratified random sample of 4,972 single-family detached homes built in 2003, and 1,448 responses were received. A convenience sample of 230 houses known to have mechanical ventilation systems resulted in another 67 completed interviews.

Results:

This report has been produced in the framework of the EU RESHYVENT project (Cluster Project on Demand Controlled Hybrid Ventilation in Residential Buildings with Specific Emphasis on the Integration of Renewables).

This report has been produced in the framework of the EU RESHYVENT project (Cluster Project on Demand Controlled Hybrid Ventilation in Residential Buildings with Specific Emphasis on the Integration of Renewables).

This report has been produced in the framework of the EU RESHYVENT project (Cluster Project on Demand Controlled Hybrid Ventilation in Residential Buildings with Specific Emphasis on the Integration of Renewables).
It is a state-of-the-art report on low-energy ventilation

Laboratory ventilation systems are designed to isolate and protect occupants from hazardous fumes and at the same time provide outside air at comfortable conditions. This often results in high air flow rates whereby the electrical fan energy use can be very high. For the building described in the paper, the fan energy use is 44% of the total electricity use in the building.
This guide is part of a series on best practices for laboratories and focuses on the use of low-pressure air distribution systems.