BS EN ISO 13791:2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Thermal performance of buildings. Calculation of internal temperatures of a room in summer without mechanical cooling. General criteria and validation procedures
Hardcopy , PDF
30-09-2017
BS EN ISO 13791:2012
BS EN ISO 52016-1:2017
BS EN ISO 52017-1:2017
English
31-01-2006
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and units
3.1 Terms and definitions
3.2 Symbols and units
3.3 Subscripts
4 Determination of internal temperatures
4.1 Assumptions
4.2 Evaluation of the relevant temperatures
4.3 Room thermal balance
4.4 Boundary conditions
4.5 Terms in the thermal balance equations
5 Procedure for carrying out calculations
5.1 General
5.2 Design climatic data
5.3 Geometrical and thermophysical characteristics
of room elements
5.4 Design internal gains
5.5 Design occupant behaviour
5.6 Calculation procedure
6 Report of the calculation
7 Validation procedures
7.1 Introduction
7.2 Validation of heat transfer processes
7.3 Validation procedure for the whole calculation method
Annex A (informative) Example of solution technique
A.1 Introduction
A.2 Basic assumptions for the calculation method
A.3 Calculation procedure
A.4 Room thermal balance
Annex B (informative) Convective heat transfer through
ventilated air layer
B.1 Introduction
B.2 Convective heat transfer for a vertical air layer
B.3 Convective heat transfer for an external horizontal
air layer
Annex C (informative) Shading due to overhangs and side fins
C.1 Introduction
C.2 Calculation path for overhang
C.3 Calculation path for vertical projection at the
end of the overhang
C.4 Calculation path for side fin
C.5 Calculation of the sunlit area due to short side
fin
C.6 External obstruction
C.7 Sunlit factor
Annex D (informative) Design climatic data in the warm season
Annex E (informative) Calculation of the internal long-wave
radiation exchanges in buildings
E.1 Introduction
E.2 Limits of application
E.3 Calculation procedure
Annex F (informative) External radiative long-wave heat
transfer coefficients
F.1 Introduction
F.2 Terms and calculation procedure
Annex G (informative) Solar factors
G.1 Introduction
G.2 Solar to air factor
G.3 Distribution factors
G.4 Solar loss factor
Annex H (informative) Internal gains
H.1 Introduction
H.2 Residential building
H.3 Non residential building
Annex J (informative) Air ventilation
J.1 Introduction
J.2 Calculation procedure
J.3 Example of calculation of natural ventilation
rates for simple building
Annex K (informative) Detailed results of the validation
tests considered in the 'whole validation model'
procedure
Bibliography
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.
Committee |
B/540
|
DevelopmentNote |
Supersedes 95/105441 DC. (02/2006) Supersedes 10/30202116 DC. (04/2012)
|
DocumentType |
Standard
|
Pages |
96
|
PublisherName |
British Standards Institution
|
Status |
Superseded
|
SupersededBy | |
Supersedes |
Standards | Relationship |
NBN EN ISO 13791 : 2012 | Identical |
UNI EN ISO 13791 : 2005 | Identical |
NF EN ISO 13791 : 2012 | Identical |
EN ISO 13791:2012 | Identical |
I.S. EN ISO 13791:2012 | Identical |
NS EN ISO 13791 : 2012 | Identical |
ISO 13791:2012 | Identical |
SN EN ISO 13791 : 2012 | Identical |
NEN EN ISO 13791 : 2012 | Identical |
EN ISO 13791:2004 | Identical |
ISO 13791:2004 | Identical |
DIN EN ISO 13791:2012-08 | Identical |
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ISO 9288:1989 | Thermal insulation — Heat transfer by radiation — Physical quantities and definitions |
ISO 9050:2003 | Glass in building — Determination of light transmittance, solar direct transmittance, total solar energy transmittance, ultraviolet transmittance and related glazing factors |
ISO 13370:2017 | Thermal performance of buildings — Heat transfer via the ground — Calculation methods |
ISO 15927-2:2009 | Hygrothermal performance of buildings Calculation and presentation of climatic data Part 2: Hourly data for design cooling load |
ISO 6946:2017 | Building components and building elements — Thermal resistance and thermal transmittance — Calculation methods |
ISO 10077-1:2017 | Thermal performance of windows, doors and shutters — Calculation of thermal transmittance — Part 1: General |
ISO 9251:1987 | Thermal insulation Heat transfer conditions and properties of materials Vocabulary |
ISO 7345:1987 | Thermal insulation Physical quantities and definitions |
ISO 10292:1994 | Glass in building — Calculation of steady-state U values (thermal transmittance) of multiple glazing |
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