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Zero energy school house 

 

Challenge

In Luxemburg, a school house is planned to meet extreamly high requirements concerning lifetime energy balance. Dynamic simulation was used to investigate and evaluate the supply of fresh air, heat and light into the proposed building, relating to expected climatic conditions and utilizations. 

 

Solution

In order to get as realistic load profiles as possible for the plant, the occupancy profiles were adapted to meet the existing class schedules for individual class rooms on the one hand, and for the whole building on the other hand. To be able to quantify demand variation due to climatic conditions, one year with “average” weather was compared with another year with “extreme” weather (cold winter and low solar radiation). 

 

Result

With the "Passivhaus Projektierungspaket" (a monthly static method), the yearly used energy demand for room heating was determined to  50.000 kWh. The results of the simulation were 42.000 kWh of delivered energy for the "normal" year and 71.000 kWh for the "extreme year". The heating season lasts 4 months from mid November to mid March. 		    
Sector
  • Educational
Categories
  • Whole-building studies
Features
  • Airflow
  • Control systems
  • Cooling and heating
  • Ventilation

 

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