BS EN ISO 13786:2017:2018 Edition
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Thermal performance of building components. Dynamic thermal characteristics. Calculation methods
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 30 |
This document specifies the characteristics related to the dynamic thermal behaviour of a complete building component and provides methods for their calculation. It also specifies the information on building materials required for the use of the building component. Since the characteristics depend on the way materials are combined to form building components, this document is not applicable to building materials or to unfinished building components.
The definitions given in this document are applicable to any building component. A simplified calculation method is provided for plane components consisting of plane layers of substantially homogeneous building materials.
Annex C provides simpler methods for the estimation of the heat capacities in some limited cases. These methods are suitable for the determination of dynamic thermal properties required for the estimation of energy consumption. These approximations are not appropriate, however, for product characterization.
NOTE TABLE 1 in the Introduction shows the relative position of this document within the set of EPB standards in the context of the modular structure as set out in ISO 52000-1.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | European foreword |
| 7 | Foreword |
| 8 | Introduction |
| 11 | 1 Scope 2 Normative references 3 Terms and definitions |
| 12 | 3.1 Definitions valid for any component |
| 13 | 3.2 Definitions valid only for one dimensional heat flow |
| 15 | 3.3 Other 4 Symbols and subscripts 4.1 Symbols |
| 16 | 4.2 Subscripts 4.3 Specific symbols 5 Description of the method 5.1 Output 5.2 General description 6 Calculation of dynamic thermal properties 6.1 Output data |
| 17 | 6.2 Calculation time intervals 6.3 Input data |
| 18 | 6.4 Period of the thermal variations 6.5 Heat capacity 7 Heat transfer matrix of a multi-layer component 7.1 General 7.2 Procedure |
| 19 | 7.3 Heat transfer matrix of a homogeneous layer 7.4 Heat transfer matrix of plane air cavities 7.5 Heat transfer matrix of a building component |
| 20 | 8 Dynamic thermal characteristics 8.1 Characteristics for any component 8.2 Characteristics for components consisting of plane and homogeneous layers 8.2.1 Thermal admittances and periodic thermal conductances 8.2.2 Modified admittance for internal partitions 8.2.3 Areal heat capacities |
| 21 | 8.2.4 Periodic thermal transmittance and decrement factor 9 Report 9.1 Calculation report |
| 22 | 9.2 Summary of results |
| 23 | Annex A (normative) Input and method selection data sheet — Template |
| 25 | Annex B (informative) Input and method selection data sheet — Default choices |
| 27 | Annex C (normative) Simplified calculation of the heat capacity |
| 29 | Bibliography |
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ISO 13786:2017
Thermal performance of building components — Dynamic thermal characteristics — Calculation methods Published By Publication…
