摘要：This paper presents an evaluation of thermo-modernisation
improvements applied over the years in the multi-family residential
building. Those improvements have included the civil and mechanical
activities. The civil activities were as follows: the application of the
thermal insulation on the external walls and replacement of the windows.
The mechanical activities were mainly focused on an adjustment of the
heating system to the new reduced heating demands of the building.
The heating system in the building was modified – the radiators were
replaced with the new ones, the heating central unit was modernised.
Moreover the local gas water heaters were eliminated. Then the building’s
energy performance characteristics, prepared according to the valid Polish
methodology, were compared with the real consumption. It was found that
after the application of thermo-modifications the heating demand was
reduced, twice. The economy efficiency of the thermo-modernisation was
evaluated by means of a method of the annual costs. The annual costs
include the heating system exploitation costs, DHW preparation system
and the auxiliary devices electricity costs.
其他摘要：This paper presents an evaluation of thermo-modernisation improvements applied over the years in the multi-family residential building. Those improvements have included the civil and mechanical activities. The civil activities were as follows: the application of the thermal insulation on the external walls and replacement of the windows. The mechanical activities were mainly focused on an adjustment of the heating system to the new reduced heating demands of the building. The heating system in the building was modified - the radiators were replaced with the new ones, the heating central unit was modernised. Moreover the local gas water heaters were eliminated. Then the building’s energy performance characteristics, prepared according to the valid Polish methodology, were compared with the real consumption. It was found that after the application of thermo-modifications the heating demand was reduced, twice. The economy efficiency of the thermo-modernisation was evaluated by means of a method of the annual costs. The annual costs include the heating system exploitation costs, DHW preparation system and the auxiliary devices electricity costs.
