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Homepage>BS Standards>91 CONSTRUCTION MATERIALS AND BUILDING>91.040 Buildings>91.040.01 Buildings in general>20/30391114 DC BS EN ISO 11855-4. Building environment design. Embedded radiant heating and cooling systems Part 4. Dimensioning and calculation of the dynamic heating and cooling capacity of Thermo Active Building Systems (TABS)
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immediate downloadReleased: 2020-03-26

20/30391114 DC

BS EN ISO 11855-4. Building environment design. Embedded radiant heating and cooling systems Part 4. Dimensioning and calculation of the dynamic heating and cooling capacity of Thermo Active Building Systems (TABS)

CURRENCY
LANGUAGE
English
Standard number:20/30391114 DC
Pages:68
Released:2020-03-26
Status:Draft for Comment
DESCRIPTION
This standard 20/30391114 DC BS EN ISO 11855-4. Building environment design. Embedded radiant heating and cooling systems is classified in these ICS categories:
  • 91.040.01 Buildings in general
  • 91.140.10 Central heating systems

This part of ISO 11855 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 part of ISO 11855 defines a detailed method aimed at the calculation of heating and cooling capacity in non-steady state conditions.

The ISO 11855 series is applicable to water based embedded 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. It does not apply to panel systems with open air gaps which are not integrated into the building structure.

The ISO 11855 series also applies, as appropriate, to the use of fluids other than water as a heating or cooling medium. The ISO 11855 series is not applicable for testing of systems. The methods do not apply to heated or chilled ceiling panels or beams.


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