PREN 12831-1 : DRAFT 2014

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Symbols and abbreviations
5 Methods
6 Standard method - Heat load of rooms, building entities
  and buildings
7 Simplified method for the calculation of the design heat
  load of a heated space (single rooms)
8 Simplified method for the calculation of the building
  design heat load
Annex A (normative) - Input data, default values
Annex B (normative) - Influence of the heat emission system in
        high rooms (ceiling height >= 4 m)
Annex C (normative) - Design ventilation heat loss - general
        calculation model (case 4)
Annex D (informative) - Input data, default values
Annex E (informative) - Detailed consideration of thermal bridges
Annex F (informative) - Internal temperatures theta[u] of unheated
        spaces or adjacent building entities within the same building
Annex G (informative) - Equivalent thermal transmittance of building
        elements against ground
Annex H (informative) - Intermittently heated spaces (6.3.4)
Annex I (informative) - External air volume flow through large
        openings

Defines 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 (wattage) needed to maintain the required internal design temperature under design external conditions.