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BS ISO 19467-2:2021:2022 Edition

BS ISO 19467-2:2021:2022 Edition

$167.15

Thermal Performance of windows and doors. Determination of solar heat gain coefficient using solar simulator – Centre of glazing

Published By Publication Date Number of Pages
BSI 2022 40
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This document specifies a method to measure the solar heat gain coefficient for the centre of glazing in fenestration systems (e.g. complete windows, doors or curtain walls with or without shading devices) for normal and off-normal irradiation on the surface.

This document applies to the centre of glazing in fenestration systems which might consist of:

  1. various types of glazing (e.g. glass or plastic; single or multiple glazing; with or without low emissivity coatings, and with spaces filled with air or other gases; opaque or transparent glazing);

  2. various types of shading devices (e.g. blind, screen, film or any attachment with shading effects);

  3. various types of active solar fenestration systems [e.g. building-integrated PV systems (BIPV) or building-integrated solar thermal collectors (BIST)].

This document does not include:

  1. shading effects of building elements (e.g. eaves, sleeve wall, etc.);

  2. shading effects of fenestration attachments with overhang structures (e.g., awning, etc.) or similar;

  3. shading effects of non-glazing elements in fenestration systems (e.g. window frame, etc.);

  4. heat transfer caused by air leakage between indoors and outdoors;

  5. ventilation of air spaces in double and coupled windows;

  6. thermal bridge effects at the joint between the glazing and the rest of the fenestration parts (e.g. window frame, etc.).

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
11 4 Symbols
12 5 Principle
5.1 General
5.2 Measurement of the irradiance
5.2.1 General
5.2.2 Determination of the net radiant flux (power) of incident radiation
15 5.2.3 Calculation of Inet with correction of reflected by the absorber
5.3 Measurement of heat flow rates with irradiance
5.3.1 Hot box method
17 5.3.2 Cooled plate method
18 5.4 Determination of the net density of heat flow rate due to thermal transmission
5.5 Measurement of heat flow rates without irradiance
5.5.1 Thermal transmittance
5.5.2 Hot box method
20 5.5.3 Cooled plate method
21 6 Test apparatus and specimens
6.1 Construction and summary of the test apparatus
6.1.1 Construction of the test apparatus
22 6.1.2 Summary of the test apparatus
6.2 Solar simulator
23 6.3 Climatic chamber
6.4 Metering box
6.5 Surround panel
6.6 Calibration panels
6.7 Metering location of temperatures
6.8 Test specimens
6.9 Insulation of glazing edge
24 7 Measurement procedure
7.1 Determination of surface coefficient of heat transfer
7.2 Measurement
25 8 Test report
8.1 Report contents
26 8.2 Estimation of uncertainty
27 Annex A (informative) Cooled plate method for SHGC measuring for the centre of glazing
29 Annex B (informative) Example of irradiation measurement
31 Annex C (informative) Consideration of effects caused by the divergence of the incident light
36 Annex D (informative) Specimen installation in surround panel
39 Bibliography

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BS ISO 19467-2:2021
$167.15