BS EN 12831-1:2017 - TC

What is BS EN 12831-1-Energy performance of buildings about?  

BS EN 12831 discusses the energy performance of buildings and the method for calculation of the design heat load. BS EN 12831-1 is the first part of BS EN 12831 multi-series and discusses space heating load, Module M3-3. 

BS EN 12831-1 covers methods for the calculation of the design heat load for single rooms, building entities, and buildings, where the design heat load is defined as the heat supply (power) needed to maintain the required internal design temperature under design external conditions. 

Who is BS EN 12831-1-Energy performance of buildings for? 

BS EN 12831-1 on the energy performance of buildings and method for calculation of the design heat load (space heating load, Module M3-3) is useful for: 

• Architects  
• Civil engineers 
• Design engineers  
• HVAC (Heating, ventilation, and air conditioning) engineers 
• Builders  

Why should you use BS EN 12831-1-Energy performance of buildings?  

The energy efficiency of a building is the extent to which the energy consumption per square meter of the floor area of the building measures up to established energy consumption benchmarks for that particular type of building under defined climatic conditions. 

BS EN 12831-1 is part of a series of standards aiming at international harmonization of the methodology for the assessment of the energy performance of buildings, called the “set of EPB standards”. 

BS EN 12831-1 describes calculation methods to determine the heat load of single rooms, building entities, and buildings, usually prior to the dimensioning of components of a heating system. This dimensioning depends on several factors, such as: 

• If heating a room with more than one heat emission device, the percentage of heating power assigned to each heat emission device 
• If significant, heating power for domestic water heating 
• If operating more than one heat generator, the percentage of the required heating power that shall be delivered by each heat generator or assignment of each heat generator to a certain task (e.g., domestic water heating, space heating, air conditioning, etc.), availability of heat generator(s) and heat emission systems of the required power rating 
• Modifications of calculation results to consider heating system or building part qualities not taken into account by BS EN 12831-1 
• Economic considerations, etc