Air change rates in multi-family residential buildings in Northern Portugal

• Type: Article in International Conference Proceedings Book
• Date: 2003

Authors

Manuel Pinto (Author) Other; Carl-Axel Boman (Author) Other; Hans Stymne (Author) Other; Vasco Peixoto de Freitas (Author) FEUP

Conference proceedings International

Title: Healthy Buildings 2003

Pages: 333-338

7th International Conference. Energy-Efficient Healthy Buildings

Singapore, 7 a 11 de Dezembro de 2003

Scientific classification

FOS: Engineering and technology > Civil engineering

CORDIS: Technological sciences > Engineering > Civil engineering

Other information

Abstract (EN): Existing technical recommendations and standards regarding natural ventilation in Portugal establish one air change rate, ACH, in main rooms (bedrooms and living rooms) and four ACH in service romms (kitchens and bathrooms). Admittedly these rates are not being observed in most residential buildings recently erected in Portugal. Two trials (May 2002 and January 2003, lasting approximately 2 weeks each) were carried out for the purpose of estimating the implementation of the rates in a two-bedroom flat which is inhabited and equipped with a "mixed" ventilation system: intake via self-adjusting ventilation inlets in the living room and bedrooms, natural exhaust in the bathroom assisted by discontinuous mechanical extraction in the kitchen. Some conclusions can bedrawn regarding the efficiency of the ventilation system used, namely the results of the study shows that the measured ventilation rate was irregular and lower than the Portuguese recommendations during both seasons. INDEX TERMS: Ventilation, dwellings, ACH, PFT, homogeneous emission technique

Language: English

Type (Professor's evaluation): Scientific

Notes: Vol II

No. of pages: 7