BS EN ISO 10211:2017 – TC:2020 Edition
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Tracked Changes. Thermal bridges in building construction. Heat flows and surface temperatures. Detailed calculations
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 159 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 91 | undefined |
| 98 | Foreword |
| 99 | Introduction |
| 102 | 1 Scope 2 Normative references |
| 103 | 3 Terms and definitions |
| 108 | 4 Symbols and subscripts 4.1 Symbols 4.2 Subscripts |
| 109 | 5 Description of the method 5.1 Output 5.2 General description 6 Output data and input data 6.1 Output data |
| 110 | 6.2 Calculation time intervals 6.3 Input data 7 Modelling of the construction 7.1 Dimension systems 7.2 Rules for modelling 7.2.1 General 7.2.2 Cut-off planes for a 3-D geometrical model for calculation of total heat flow and/or surface temperatures |
| 112 | 7.2.3 Cut-off planes for a 2-D geometrical model |
| 113 | 7.2.4 Cut-off planes in the ground |
| 114 | 7.2.5 Periodic heat flows via the ground 7.2.6 Adjustments to dimensions |
| 116 | 7.2.7 Auxiliary planes 7.2.8 Quasi-homogeneous layers and materials 7.3 Conditions for simplifying the geometrical model 7.3.1 General |
| 117 | 7.3.2 Conditions for adjusting dimensions to simplify the geometrical model |
| 118 | 7.3.3 Conditions for using quasi-homogeneous material layers to simplify the geometrical model |
| 121 | 8 Input data specifications 8.1 General |
| 122 | 8.2 Thermal conductivities of materials 8.3 Surface resistances 8.4 Boundary temperatures 8.5 Thermal conductivity of quasi-homogeneous layers 8.6 Equivalent thermal conductivity of air cavities |
| 123 | 8.7 Determining the temperature in an adjacent unheated room 9 Calculation method 9.1 Solution technique 9.2 Calculation rules 9.2.1 Heat flows between material cells and adjacent environment 9.2.2 Heat flows at cut-off planes 9.2.3 Solution of the formulae |
| 124 | 9.2.4 Calculation of the temperature distribution 10 Determination of thermal coupling coefficients and heat flow rate from 3-D calculations 10.1 Two boundary temperatures, unpartitioned model 10.2 Two boundary temperatures, partitioned model |
| 125 | 10.3 More than two boundary temperatures |
| 126 | 11 Calculations using linear and point thermal transmittances from 3-D calculations 11.1 Calculation of thermal coupling coefficient 11.2 Calculation of linear and point thermal transmittances |
| 127 | 12 Determination of thermal coupling coefficient, heat flow rate and linear thermal transmittance from 2-D calculations 12.1 Two boundary temperatures 12.2 More than two boundary temperatures |
| 128 | 12.3 Determination of the linear thermal transmittance 12.4 Determination of the linear thermal transmittance for wall/floor junctions 12.4.1 All cases 12.4.2 Option A |
| 130 | 12.4.3 Option B |
| 132 | 12.5 Determination of the external periodic heat transfer coefficient for ground floors |
| 133 | 13 Determination of the temperature at the internal surface 13.1 Determination of the temperature at the internal surface from 3-D calculations 13.1.1 Two boundary temperatures 13.1.2 More than two boundary temperatures |
| 134 | 13.2 Determination of the temperature at the internal surface from 2-D calculations 13.2.1 Two boundary temperatures 13.2.2 Three boundary temperatures 14 Report 14.1 Input data |
| 135 | 14.2 Output data 14.2.1 General 14.2.2 Calculation of the heat transmission using the thermal coupling coefficient 14.2.3 Calculation of the surface temperatures using weighting factors 14.2.4 Additional output data |
| 136 | 14.2.5 Estimate of error |
| 137 | Annex A (normative) Input and method selection data sheet — Template |
| 139 | Annex B (informative) Input and method selection data sheet — Default choices |
| 141 | Annex C (normative) Validation of calculation methods |
| 148 | Annex D (normative) Examples of the determination of the linear and point thermal transmittances |
| 151 | Annex E (normative) Determination of values of thermal coupling coefficient and temperature weighting factor for more than two boundary temperatures |
| 156 | Bibliography |
