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International ISO standards

Publication date

August 2021

Number of pages

58 p.

Reference

ISO 11855-4:2021

ICS Codes

91.040.01 Buildings in general

Print number

1

Sumary

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)

This document allows the calculation of peak cooling capacity of Thermo Active Building Systems (TABS) – Type V according to ISO 11855-1, 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, e.g. the chiller size, fluid flow rate.

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

Replaced standards (1)

ISO 11855-4:2012

August 2012

International standard Cancelled

Building environment design - Design, construction and operation of radiant heating and cooling systems - Part 4 : dimensioning and calculation of the dynamic heating and cooling capacity for thermo active building systems (TABS)

ISO 11855-4:2012 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. ISO 11855-4:2012 defines a detailed method aimed at the calculation of heating and cooling capacity in non-steady state conditions.

Standard replaced by (1)

ISO 11855-4:2012

August 2012

International standard Cancelled

Building environment design - Design, construction and operation of radiant heating and cooling systems - Part 4 : dimensioning and calculation of the dynamic heating and cooling capacity for thermo active building systems (TABS)

ISO 11855-4:2012 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. ISO 11855-4:2012 defines a detailed method aimed at the calculation of heating and cooling capacity in non-steady state conditions.

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