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This Document Has Been Superseded
A newer publication replaces it: BSI BS EN ISO 11855-4
Heating systems in buildings. Design of embedded water based surface heating and cooling systems -- Optimizing for use of renewable energy sources
This document 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 standard is part 3 of a series of standards:
The aim of the present standard is to give a guide for the design to promote the use of renewable energy sources and to provide a method for the use of Thermo-Active-Building-Systems (TABS). The method allows calculation of peak cooling capacity of a thermo-active system, based on heat gains (solar, internal loads, ventilation).
This method also allows calculation of the energy demand on the water side (system) to be used for sizing of the cooling system, e.g. chiller, fluid flow rate.
Steady state heating capacity is calculated according to method B or E of prEN 15377-1 (part 1 of this series of standards).
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