Thermal renovation and installation of air recuperation in Secondary medical school Kromeriz
Kromeriz, Zlín Region, Czech Republic
With the support from the Energy Agency of the Zlín Region the municipality submitted the application for funding to the national Operational Programme Environment 2014-2020. The application succeeded and the project was approved for funding. The final share of the subsidy was almost 30 % from the overall investment costs.
The outer walls were improved by 14 cm of EPS with l= 0,039 W/(mK) (U-value were reduced to 0,186 W/(m²K)). The roof were insulated with 300 mm mineral wool with l= 0,037 W/(mK). The existing windows with an average U-value of 2,7 W/(m²K) were replaced by new plastic windows with a U-value of 0,9 W/(m²K). The doors were improved with U = 1,2 W/(m²K)).
Because of the inadequate indoor environment air recuperation for whole school was projected with the overall power of 35 900 m3/h.
One of the most important part of the project was the improving the light to the LED technology. This means reducing the energy consumption by 42 GJ per year.
Nowadays, the heating demand of the building is 102 kWh/(m2.a), which means A-class for this type of building.
Benefits
Overall reconstruction of the school significantly reduced consumption of the natural gas and improved the indoor environment as well as the outer design of the building.
The reduction of the energy consumption and operational costs has the positive effect on a sustainable operation of the school for the next 40 years.
Mechanical ventilation is necessary for the suitable indoor clime. The visible benefit is also the comfortable place for the teachers and students.