BS EN ISO 11855-4:2021 – TC:2022 Edition
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Tracked Changes. Building environment design. Embedded radiant heating and cooling systems – Dimensioning and calculation of the dynamic heating and cooling capacity of Thermo Active Building Systems (TABS)
Published By | Publication Date | Number of Pages |
BSI | 2022 | 166 |
This document allows the calculation of peak cooling capacity of Thermo Active Building Systems (TABS), based on heat gains, such as solar gains, internal heat gains, and ventilation, and the calculation of the cooling power demand on the water side, to be used to size the cooling system, as regards the chiller size, fluid flow rate, etc.
This document defines a detailed method aimed at the calculation of heating and cooling capacity in non-steady state conditions.
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | 30445914 |
99 | A-30391115 |
100 | undefined |
104 | Foreword |
105 | Introduction |
107 | 1 Scope 2 Normative references 3 Terms and definitions 4 Symbols |
110 | 5 The concept of thermally active building surfaces (TABS) |
116 | 6 Calculation methods 6.1 General |
119 | 6.2 Rough sizing method 6.3 Simplified sizing by diagrams |
125 | 6.4 Simplified model based on FDM |
126 | 6.4.1 Cooling system 6.4.2 Hydraulic circuit and slab |
128 | 6.4.3 Room |
130 | 6.4.4 Limits of the method |
131 | 6.5 Dynamic building simulation programs 7 Effects of acoustic ceiling units on the cooling performance of TABS 8 Input for computer simulations of energy performance |
133 | Annex A (informative) Simplified diagrams |
139 | Annex B (normative) Calculation method |
150 | Annex C (informative) Tutorial guide for assessing the model |
153 | Annex D (informative) Computer program |
164 | Bibliography |