Effect of energy renovation on indoor air quality in multifamily residential buildings in Slovakia

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Földváry, VeronikaSlovak University of Technology, Slovakia,Slovak University of Technology Bratislava (författare)

Effect of energy renovation on indoor air quality in multifamily residential buildings in Slovakia

Artikel/kapitelEngelska2017

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Elsevier BV,2017
printrdacarrier

Nummerbeteckningar

LIBRIS-ID:oai:DiVA.org:ri-30814
https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-30814URI
https://doi.org/10.1016/j.buildenv.2017.06.009DOI
https://research.chalmers.se/publication/251633URI
https://urn.kb.se/resolve?urn=urn:nbn:se:ivl:diva-3734URI

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Språk:engelska
Sammanfattning på:engelska

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Ämneskategori:ref swepub-contenttype
Ämneskategori:art swepub-publicationtype

Anmärkningar

A-rapport, A2265
Buildings are responsible for a substantial portion of the global energy consumption. Most of the multifamily residential buildings built in the 20th century in Central and Eastern Europe do not satisfy the current requirements on energy efficiency. Nationwide measures taken to improve the energy efficiency of these buildings rarely consider their impact on the indoor air quality (IAQ). The objective of the present study was to evaluate the impact of simple energy renovation on IAQ, air exchange rates (AER) and occupant satisfaction in Slovak residential buildings. Three pairs of identical naturally ventilated multifamily residential buildings were examined. One building in each pair was newly renovated, the other was in its original condition. Temperature, relative humidity (RH) and the concentration of carbon dioxide (CO2) were measured in 94 apartments (57%) during one week in the winter. A questionnaire related to perceived air quality, sick building syndrome symptoms and airing habits was filled by the occupants. In a companion experiment, the IAQ was investigated in 20 apartments (50%) of a single residential building before and after its renovation. In this experiment, concentrations of nitrogen dioxide (NO2), formaldehyde and total and individual volatile organic compounds (VOC) were also measured. CO2 concentrations were significantly higher and AERs were lower in the renovated buildings. Formaldehyde concentrations increased after renovation and were positively correlated with CO2 and RH. Energy renovation was associated with lower occupant satisfaction with IAQ. Energy retrofitting efforts should be complemented with improved ventilation in order to avoid adverse effects on IAQ.

Ämnesord och genrebeteckningar

TEKNIK OCH TEKNOLOGIER Samhällsbyggnadsteknik Husbyggnad hsv//swe
ENGINEERING AND TECHNOLOGY Civil Engineering Building Technologies hsv//eng
Air exchange rate
Apartment buildings
Natural ventilation
Occupant perception
Retrofitting
Air
Air quality
Apartment houses
Carbon
Carbon dioxide
Energy efficiency
Energy utilization
Finance
Formaldehyde
Housing
Indoor air pollution
Intelligent buildings
Nitrogen compounds
Nitrogen oxides
Ventilation
Volatile organic compounds
Air exchange rates
Central and Eastern Europe
Formaldehyde concentrations
Sick building syndrome symptoms
Volatile organic compound (VOC)
Buildings

Biuppslag (personer, institutioner, konferenser, titlar ...)

Bekö, GabrielDTU Technical University of Denmark, Denmark,Danmarks Tekniske Universitet,Technical University of Denmark (författare)
Langer, Sarka,1960IVL Svenska Miljöinstitutet(Swepub:ivl)P010239 (författare)
Arrhenius, KarineSP Sveriges Tekniska Forskningsinstitut AB,RISE,Kemi och material(Swepub:ri)KarineAr@ri.se (författare)
Petráš, DusanSlovak University of Technology, Slovakia,Slovak University of Technology Bratislava (författare)
Slovak University of Technology, SlovakiaSlovak University of Technology Bratislava (creator_code:org_t)

Sammanhörande titlar

Ingår i:Building and Environment: Elsevier BV122, s. 363-3720360-13231873-684X

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Av författaren/redakt...: Földváry, Veroni ...; Bekö, Gabriel; Langer, Sarka, 1 ...; Arrhenius, Karin ...; Petráš, Dusan

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Av lärosätet: RISE; Chalmers tekniska högskola; IVL Svenska Miljöinstitutet

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