We evaluated the behavior of electric direct heating in family houses

News, 07/02/2021

The University Centre for Energy-Efficient Buildings of Czech Technical University has completed the analysis of electricity consumption for heating three selected family houses as part of a contract research for the joint-stock company SAKUTUS CZ. Part of the research was also an evaluation of the quality of the indoor environment, which enabled a closer determination of the operation of buildings, rooms and the behavior of users.

The measurement and evaluation of energy consumption and indoor environment shows the operation of three different types of family houses with different user behavior. Due to the fact that the measurement took place in the period from February to May 2021, i.e. it was partly affected by the pandemic lockdown, the operation of objects and the presence of people were quite clearly given. It is therefore possible to state that the measured data are reference and take into account the continuous operation of the family house.

As part of the final report, the research department Quality of the Indoor Environment of CTU UCEEB prepared an energy assessment of buildings according to current and future legislative rules. It clearly shows the necessary setting of the technical systems of family houses and building standards for their envelopes, if the main source of heat will be electric radiant panels, especially with regard to changes in the requirements for energy efficiency valid after January 1, 2022.

The actual analysis of the measured energy consumption is aimed at summarizing and aggregating the measured data for the building as a whole as well as for individual measured heating circuits. Using the obtained data, it is possible to calculate the annual energy need for selected objects. This is then confronted with the calculated predicted value of the partial delivered energy for heating determined during the evaluation of the energy efficiency of the buildings.

The evaluation of the quality of the internal environment enables a closer determination of the operation of the building, rooms and the behavior of users. The results show the connection between user habits, the expected quality of the indoor environment and the resulting energy consumption.

The joint-stock company SAKUTUS CZ received research support from EU funds within the OP PIK Innovation Vouchers program.