EN 15377-1:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
   3.1 Embedded surface heating and cooling system
   3.2 Design parameters
   3.3 Thermal capacity
   3.4 Surface temperatures
   3.5 Temperatures of the heating/cooling medium
   3.6 Characteristic curves
4 Symbols and units
5 Concept of the method to determine the heating and cooling
   capacity
6 Heat exchange coefficient between surface and space
7 Simplified calculation methods for determining heating and
   cooling capacity or surface temperature
   7.1 General
   7.2 Universal single power function according to EN 1264
   7.3 Thermal resistance methods
8 Use of basic calculation programs
   8.1 Basic calculation programs
   8.2 Items to be included in a complete computation documentation
9 Testing according to EN 1264-2
10 Calculation of the heating and cooling capacity
Annex A (informative) Recommended maximum/minimum surface
        temperatures
      A.1 Encouragement to design for low water temperature for
          heating and high water temperature for cooling
      A.2 Floor heating and cooling
      A.3 Wall heating and cooling
      A.4 Ceiling heating and cooling
      A.5 Example of calculation for heated or cooled ceiling
Annex B (normative) General resistance method
      B.1 General equations
      B.2 Calculation of R[t] for pipes embedded in massive concrete
          (steady state condition)
      B.3 Calculation of R[t] for capillary pipes embedded in a
          layer at the inner surface (steady state condition)
Annex C (normative) Pipes embedded in wooden construction
      C.1 Field of application
      C.2 Determination of heat exchange by calculation
          C.2.1 Applicability
          C.2.2 The calculation model - general
          C.2.3 Calculation procedure for determination of equivalent
                heat transmission coefficient
          C.2.4 Calculation procedure for components and element
                characteristics
      C.3 Estimation of the resistances based on testing according
          to EN 1264-2
          C.3.1 General
          C.3.2 Evaluation - heat conducting devices
          C.3.3 Evaluation when theta[m] can not be measured
Annex D (normative) Method for verification of FEM and FDM
        calculation programs
Annex E (informative) Values for heat conductivity of materials
        and air layers
      E.1 Solid materials
      E.2 Trapped air layers
Bibliography

This European Standard is applicable to water based surface heating and cooling systems in residential, commercial and industrial buildings.The methods apply to systems integrated into the wall, floor or ceiling construction without any open air gaps.The methods do not apply to heated or chilled ceiling panels or beams.This European Standard provides steady-state calculation methods for determination of the heating and cooling capacity (part 1).This European Standard estimates an equivalent system resistance to be used in dynamic building simulation programs.This European Standard applies also, as appropriate, to the use of other fluids instead of water.A separate standard provides a method for design, dimensioning and installation of the system (part 2).This European Standard is not applicable for testing or certification of systems.A separate standard provides a method and guidance on how to optimise the design for use of renewable energy sources and take system dynamic effects into account (part 3).