• NS EN 15316-2-3 : 1ED 2007

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    HEATING SYSTEMS IN BUILDINGS - METHOD FOR CALCULATION OF SYSTEM ENERGY REQUIREMENTS AND SYSTEM EFFICIENCIES - PART 2-3: SPACE HEATING DISTRIBUTION SYSTEMS

    Available format(s): 

    Superseded date:  07-01-2017

    Language(s): 

    Published date:  01-12-2013

    Publisher:  Norwegian Standards (Norges Standardiseringsforbund)

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Symbols, units and indices
    5 Principle of the method and definitions
    6 Auxiliary energy demand
      6.1 General
      6.2 Design hydraulic power
      6.3 Detailed calculation method
          6.3.1 Input/output data
          6.3.2 Calculation method
          6.3.3 Correction factors
          6.3.4 Expenditure energy factor
          6.3.5 Intermittent operation
      6.4 Deviations from the detailed calculation method
      6.5 Monthly auxiliary energy demand
      6.6 Recoverable auxiliary energy
    7 System thermal loss of distribution systems
      7.1 General
      7.2 Detailed calculation method
          7.2.1 Input/output data
          7.2.2 Calculation method
          7.2.3 Thermal losses of accessories
          7.2.4 Recoverable and un-recoverable system thermal loss
          7.2.5 Total system thermal loss
      7.3 Calculation of linear thermal transmittance (W/mK):
      7.4 Calculation of mean part load of distribution per zone
    8 Calculation of supply and return temperature depending on
      mean part load of distribution
      8.1 Temperature calculation of heat emitters
          8.1.1 General
          8.1.2 Continuous control depending on outdoor temperature
          8.1.3 Continuous control with thermostatic valves
          8.1.4 On-Off control with room thermostat
      8.2 Effect of by-pass connections
      8.3 Effect of mixing valves
      8.4 Parallel connection of distribution circuits
      8.5 Primary circuits
    Annex A (informative) Preferred procedures
     A.1 Simplified calculation method for determination of annual
         auxiliary energy demand
         A.1.1 Input/output data
         A.1.2 Calculation method
         A.1.3 Correction factors
         A.1.4 Expenditure energy factor
         A.1.5 Intermittent operation
         A.1.6 Monthly auxiliary energy demand and recoverable
               auxiliary energy
     A.2 Tabulated calculation method for determination of annual
         auxiliary energy demand
         A.2.1 Input/output data
         A.2.2 Calculation method, tabulated values
         A.2.3 Monthly auxiliary energy demand and recoverable
               auxiliary energy
     A.3 Simplified calculation method for determination of annual
         system thermal loss
         A.3.1 Input/output data
         A.3.2 Calculation method
         A.3.3 Approximation of the length of pipes per zone in
               distribution systems
         A.3.4 Default values of the outer total surface coefficient
               of heat transfer (convection and radiation)
         A.3.5 Approximation of [psi] -values
         A.3.6 Equivalent length of valves
         A.3.7 Default values for the exponent of the heat emission
               system
     A.4 Tabulated calculation method for determination of annual
         system thermal loss
         A.4.1 Input/output data
         A.4.2 Calculation method, tabulated values
     A.5 Example
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes a methodology to calculate/estimate the system thermal loss of water based distribution systems for heating and the auxiliary energy demand, as well as the recoverable part of each. The actual recovered energy depends on the gain to loss ratio.

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    Document Type Standard
    Publisher Norwegian Standards (Norges Standardiseringsforbund)
    Status Superseded
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