Abstract
<jats:p>Infiltration has a considerable impact on both, energy efficiency and occupant comfort in buildings. Due to the complexity of the analysis of this phenomenon in buildings, the verification methods are very important for its diagnostics and evaluation. In this paper, the matter of infiltration in buildings is being considered referring to both, calculation models and methods, as well as through current standards and regulations in the EU and Serbia. Different valorization methods are presented and analyzed regarding their characteristics, applicability, and complexity. Finally, preliminary infiltration measurements with a pressurization test, conducted on selected buildings of Belgrade housing stock are presented and compared with values defined by the current regulations in Serbia. Results pointed out current problems and the need for improvements regarding the treatment of infiltration in local regulations and practice.</jats:p>
Highlights
Being the largest energy consumer in Europe, buildings use 40% of the total energy and are responsible for around 36% of the CO2 emission. [1] European countries are complying with the set of international agreements to increase energy efficiency and reduce energy consumption
Regulations in Serbia that consider infiltration issues are not sufficiently precise in defining the calculation methods and quite roughly define values leaving a lot of space for assumptions
It is noted that in the Republic of Serbia, it is not obligatory to measure the airtightness of the building envelope - the infiltration rate of the building is based on an expert assessment
Summary
Being the largest energy consumer in Europe, buildings use 40% of the total energy and are responsible for around 36% of the CO2 emission. [1] European countries are complying with the set of international agreements to increase energy efficiency and reduce energy consumption. [1] European countries are complying with the set of international agreements to increase energy efficiency and reduce energy consumption Achievement of these goals sets the need to minimize thermal losses through the building envelope. [2] In this context, one of the dominant questions, with a great impact on both energy efficiency and indoor air quality, is the matter of infiltration in buildings. Infiltration, together with ventilation, represents ventilation heat losses, having a significant influence when considering the total energy consumption of buildings. As such, it is one of the main factors considered when calculating heat losses in buildings. The analysis of the infiltration of representative examples of the Belgrade housing stock was investigated based on preliminary measurements with the pressurization test, and results are presented and compared with requirements of the current regulations in Serbia
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