The article analyses the field of civil engineering from the point of view of the necessity of implementing various BIM modelling tools in the management of energyefficient buildings. Information on BIM modelling tools that may be needed in the maintenance of energy-efficient buildings has been collected. Five main tools have been identified and described, including BEM and CFD technologies, which have been reviewed in more detail. The requirements for information models that integrate with third-party BIM modelling tools for analysing building thermal performance and indoor climate have also been identified. The article provides examples of foreign experience in the use of BIM modeling tools used in the analysis of existing energy-efficient buildings.

Heat pump systems become very promising equipment saving energy and improving overall energy efficiency and environmental protection in the residential sector. This review paper provides an update on current specifics of heat pump implementation in Russian residential sector. The paper also reviews major technical and supporting measures promoting broad distribution of the heat pump technology. In a computational part of this paper, heat pump refrigerant evaporation temperature and its influence on fuel consumption were analyzed for a heat pump system arrangement option with parallel evaporators.