EN 15316-2-1:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions, symbols and units
  3.1 Terms and definitions
  3.2 Symbols and units
4 Relation to other EPBD-standards
5 Principle of the method
  5.1 Energy calculation
  5.2 Thermal energy required for heat emission
  5.3 Auxiliary energy W[em,aux]
  5.4 Recoverable system thermal losses Q[em,ls,rbl] and
      non-recoverable system thermal losses Q[em,ls,nrbl]
  5.5 Heat demand for space heating, building heat
      requirement Q[H]
  5.6 System thermal losses Q[em,ls]
  5.7 Calculation periods
  5.8 Splitting or branching of the space heating system
6 Energy calculation for a heat emission system
  6.1 General
  6.2 Heat loss due to non-uniform temperature distribution
  6.3 Heat loss due to embedded surface heating devices
  6.4 Heat loss due to control of the indoor temperature
  6.5 Auxiliary energy, W[em,aux]
7 Recommended calculation methods
  7.1 General
  7.2 Method using efficiencies
  7.3 Method using equivalent increase in internal temperature
Annex A (informative) - Energy losses of the heat emission system,
        adapted from German regulation DIN 18599
    A.1 Heat emission
    A.2 Efficiencies for free heating surfaces (radiators); room
        heights <= 4 m
    A.3 Efficiencies for component integrated heating surfaces
        (panel heaters) (room heights <= 4 m)
    A.4 Efficiencies for electrical heating (room heights <= 4 m)
    A.5 Efficiencies air heating (non-domestic ventilation systems)
        (room heights <= 4 m)
    A.6 Efficiencies for room spaces with heights >= 4 m
        (large indoor space buildings)
    A.7 Efficiencies for room spaces with heights > 10 m
Annex B (informative) - Equivalent increase in internal
        temperature - adapted from the French regulation RT2005
    B.1 General
    B.2 Zones
    B.3 Spatial variation of temperature due to stratification
    B.4 Variation of temperature due to control
Annex C (informative) - Auxiliary energy
    C.1 General
    C.2 Large indoor space buildings (h > 4 m)
Bibliography

The scope of this European Standard is to standardise the required inputs, the outputs and the links (structure) of the calculation method in order to achieve a common European calculation method.The energy performance may be assessed either by values of the heat emission system efficiency or by values of the increased space temperatures due to heat emission system inefficiencies.The method is based on an analysis of the following characteristics of a space heating emission system, including control:-non-uniform space temperature distribution;-heat emitters embedded in the building structure;-control accuracy of the indoor temperature.The energy required by the emission system is calculated separately for thermal energy and electrical energy, in order to facilitate determination of the final energy and subsequently the corresponding primary energy according to other standards.