The overall objective of the IEA EBC Annex 68 is to provide scientific basis usable for optimal and practically applicable design and control strategies for high Indoor Air Quality (IAQ) in residential buildings. Naturally, those strategies should ensure minimal possible energy use. The project aims to gather existing and provide new data on pollution sources in buildings, model the indoor hydrothermal conditions and air quality as well as thermal systems, and will look to ways to optimize the provision of ventilation and air-conditioning.
The work of the Annex is organized into five subtasks:
- Subtask 1 will set up the metrics for required performances which combine the aspiration for very high energy performance with good indoor environmental quality.
- Subtask 2 is to gather existing knowledge or provide new data about indoor air pollutants as well as combined heat, air and moisture transfer.
- Subtask 3 will identify and/or further develop modelling tools that can assist designers and managers of buildings.
- Subtask 4 will build up on the fundaments laid by previous subtasks and develop a guidebook on design and control strategies for energy efficient ventilation in residential buildings that will not compromise indoor air quality.
- Subtask 5 will identify and investigate relevant case studies and do field measurements where the above mentioned strategies can be examined and optimized.
The different subtasks are presented in more detail in extended abstracts for each of them.