ISO 13791:2004 Thermal performance of buildings - Calculation of internal temperatures of a room in summer without mechanical cooling - General criteria and validation procedures
This document specifies the assumptions, boundary conditions, equations and validation tests for a calculation
procedure, under transient hourly conditions, of the internal temperatures (air and operative) during the warm
period, of a single room without any cooling/heating equipment in operation. No specific numerical techniques are
imposed by this document. Validation tests are included in Clause 7. An example of a solution technique is given in
Annex A.
This document does not contain sufficient information for defining a procedure able to determine the internal
conditions of special zones such as attached sun spaces, atria, indirect passive solar components (Trombe walls,
solar panels) and zones in which the solar radiation may pass through the room. For such situations different
assumptions and more detailed solution models are needed (see Bibliography).
ISO 13791:2004 history
2012ISO 13791:2012 Thermal performance of buildings - Calculation of internal temperatures of a room in summer without mechanical cooling - General criteria and validation procedures
2004ISO 13791:2004 Thermal performance of buildings - Calculation of internal temperatures of a room in summer without mechanical cooling - General criteria and validation procedures