Journal of Building Engineering - 1 artykuł

Influence of photovoltaic installation on energy performance of a nursery building in Warsaw (Central European conditions)

The following study investigates the effects of various solutions applied for energy supply to nursery buildings in reference to their energy performance indicators in the cold climate of Central Europe by analyzing various heat source and PV installation setups. A gas boiler and two heat pumps types were tested as the heat source, together with varying PV installation configurations. Nursery building computation model was diversified in terms of ventilation. Both natural ventilation and mechanical ventilation system with heat recovery were tested. A total of 24 variants were suggested and analysed by computation of monthly and annual energy demands. The study was intended to determine the importance of PV installation in nursery buildings for Central European conditions. The analysis of the results indicated that for buildings where power is mostly supplied by electricity, application of PV installations exerts most significant impact on their energy performance indicators. The contribution of clean renewable energy was greatest for the building model with cascade of air-source heat pumps and 60 kWp PV installation. Apart from no PV installation variants, the lowest impact of PV installation was observed in the naturally ventilated building model with gas condensing boiler as the heat source and with 10 kWp PV installation. The present research is applicable for designing energy supply solutions for early education buildings.

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