Indoor Air Quality in energy-efficient buildings in Sweden: comparison with the Swedish residential housing stock and new conventional buildings
Paper in proceedings, 2018

The aim of this study was to compare the indoor air quality in newly built energy-efficient (passive) buildings in Sweden with the Swedish residential housing stock and new conventional buildings. We have used data from our previous publications to calculate Indoor Environmental Index (IEI), which is an average of Indoor Discomfort Index (IDI) that regards temperature and relative humidity, and Indoor Air Pollution Index (IAPI) that regards concentrations of indoor air pollutants. The passive building had significantly worse IEQ than the housing stock (p <0.05). Further disentangling of the partial indexes revealed that the difference was almost entirely caused by low to very low relative humidity in the passive buildings which affected the IDI. It could be speculated that the low relative humidity is coupled to operation of the ventilation systems and air exchange rates. It might be of importance to review the ventilation requirements in the energy-efficient buildings

Indoor Environmental Index

energy efficiency

indoor air pollutants

thermal comfort

passive buildings

Author

Sarka Langer

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Despoina Teli

Chalmers, Architecture and Civil Engineering, Building Services Engineering

Lars Ekberg

Building Services Engineering

Proceedings Indoor Air 2018

INDOOR AIR 2018 The 15th Conference of the International Society of Indoor Air Quality & Climate (ISIAQ)
Philadelphia, USA,

Driving Forces

Sustainable development

Areas of Advance

Building Futures (2010-2018)

Energy

Subject Categories

Other Engineering and Technologies

Building Technologies

More information

Created

11/23/2018