NBN EN 15316-4-4 : 2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 CHP system calculation
  5.1 System boundaries
  5.2 Auxiliary energy consumption
  5.3 Recoverable system thermal loss
  5.4 Calculation period
  5.5 Available methodologies
  5.6 Fractional contribution method
      5.6.1 Annual heat output of the cogeneration installation
      5.6.2 Annual fuel input for the cogeneration installation
      5.6.3 Annual system thermal loss of the cogeneration
            installation
      5.6.4 Annual electricity output of the cogeneration
            installation
  5.7 Annual load profile method
      5.7.1 General approach
      5.7.2 Determining the energy performance for full range of
            load conditions for the cogeneration unit
      5.7.3 Determining the annual load profile for the
            cogeneration unit
      5.7.4 Annual heat output of the cogeneration installation
      5.7.5 Annual fuel input for the cogeneration installation
      5.7.6 Electricity output of the cogeneration installation
      5.7.7 Annual average thermal efficiency of the cogeneration
            installation
      5.7.8 Annual system thermal loss of the cogeneration
            installation
Annex A (informative) Share of preferential CHP systems
Annex B (informative) Efficiency of building integrated
                      cogeneration units
Annex C (informative) Example: Annual load profile method
        C.1 Cogeneration unit specifications (load-performance
            curve)
        C.2 Building heat demand profile
        C.3 Combining cogeneration unit specifications (load
            performance curve) and the annual load profile
        C.4 Energy rating
Bibliography

Describes a method for calculation of the energy requirements, electricity production, thermal output and recoverable losses of building-integrated cogeneration units forming part of a heat generation system (space heating and domestic hot water) in a building.