Reconstruction of Soviet-type building to energy class A—Simulation and actual data validation

Abstract

The renovation/modernisation of buildings is one of the most frequently addressed areas in the European Union. It is the basis for the entry into force of Directive 2010/31/EU on the energy performance of buildings. The assessment of renovated buildings has several objectives, characterised by different assessment indicators. To better assess the renovation of buildings and future energy efficiency improvements, natural and computer simulations are used to help make more rational decisions. This work aims to analyse and quantify energy efficiency improvement measures and additional factors based on an existing retrofitted office building using collected, measured, and modelled data. The work is based on measured real building data for the assessment of heat loss of the building and calculating the thermal coefficient of the external envelope. Energy modelling of buildings before and after retrofitting is carried out using simulation, data processing, and analysis software.