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BS EN ISO 52022-1:2017

Current
Current

The latest, up-to-date edition.

Energy performance of buildings. Thermal, solar and daylight properties of building components and elements Simplified calculation method of the solar and daylight characteristics for solar protection devices combined with glazing
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

08-14-2017

This document specifies a simplified method based on thermal, solar and light characteristics of the glazing and solar and light characteristics of the solar protection device, to estimate the total solar energy transmittance, direct energy transmittance and the light transmittance of a solar protection device combined to a glazing.

This document is applicable to all types of solar protection devices parallel to the glazing, such as louvre, venetian or roller blinds. The position of the solar protection device can be interior, exterior or between single panes in a dual glazing system. It is applicable when the total solar energy transmittance of the glazing is between 0,15 and 0,85. Venetian or louvre blinds are assumed to be adjusted so that there is no direct solar penetration. It is assumed that for external solar protection devices and for integrated solar protection devices, the space between the solar protection devices and the glazing is unventilated and for internal solar protection devices this space is ventilated.

The resulting g-values of the simplified method given here are approximate and their deviation from the exact values lie within the range between +0,10 and -0,02. The results generally tend to lie on the safe side for cooling load estimations. The results are not intended to be used for calculating beneficial solar gains or thermal comfort criteria.

The simplified method is based on the normal incidence of radiation and does not take into account either the angular dependence of transmittance and the reflectance or the differences of spectral distribution. This should be considered when applying the method.

The simplified method can also be used for inclined elements.

This document can be applied when the solar transmittance and solar reflectance of the solar protection devices are within the following ranges:

0 ≤ τ e,B ≤ 0,5 and 0,1 ≤ ?? e,B ≤ 0,8

For reflectance and transmittance values outside these ranges ISO 52022-3 applies.

For cases not covered by the method given in this document more exact calculations based on the optical properties (in general the spectral data) of glass and solar protection device can be carried out in accordance with ISO 52022-3.

NOTE Table1 in the Introduction shows the relative position of this document within the set of EPB standards in the context of the modular structure as set out in ISO 52000-1.

Committee
B/540/8
DevelopmentNote
Supersedes 15/30312819 DC & BS EN 13363-1. (08/2017)
DocumentType
Standard
Pages
32
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
EN ISO 52022-1:2017 Identical
ISO 52022-1:2017 Identical

CEN/TS 16629:2014 Energy Performance of Buildings - Detailed Technical Rules for the set of EPB-standards
ISO 10293:1997 Glass in building — Determination of steady-state U values (thermal transmittance) of multiple glazing — Heat flow meter method
EN 673:2011 Glass in building - Determination of thermal transmittance (U value) - Calculation method
CEN/TS 16628:2014 Energy Performance of Buildings - Basic Principles for the set of EPB standards
EN 410:2011 Glass in building - Determination of luminous and solar characteristics of glazing
ISO 52022-3:2017 Energy performance of buildings — Thermal, solar and daylight properties of building components and elements — Part 3: Detailed calculation method of the solar and daylight characteristics for solar protection devices combined with glazing
ISO 52000-1:2017 Energy performance of buildings — Overarching EPB assessment — Part 1: General framework and procedures
EN 14500:2008 Blinds and shutters - Thermal and visual comfort - Test and calculation methods
ISO 10291:1994 Glass in building — Determination of steady-state U values (thermal transmittance) of multiple glazing — Guarded hot plate method
EN 674:2011 Glass in building - Determination of thermal transmittance (U value) - Guarded hot plate method
ISO 9050:2003 Glass in building — Determination of light transmittance, solar direct transmittance, total solar energy transmittance, ultraviolet transmittance and related glazing factors
EN 675:2011 Glass in building - Determination of thermal transmittance (U value) - Heat flow meter method
ISO/TR 52000-2:2017 Energy performance of buildings Overarching EPB assessment Part 2: Explanation and justification of ISO 52000-1
ISO/TR 52022-2:2017 Energy performance of buildings Thermal, solar and daylight properties of building components and elements Part 2: Explanation and justification
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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