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ISO 19467-2017 pdf free download
ISO 19467-2017 pdf free download.Thermal performance of windows and doors — Determination of solar heat gain coefficient using solar simulator
Performance the rmique desfenétres et portes — Determination du coefficient degain thermiquesolaire au moyen d’un simulateursolaire.
b) Non-uniformity of the irradiance: The non-uniformity of the irradiance on the test plane shall be measured in accordance with IEC 60904-9 and shall be within 5 %. However, the designated test area shall be divided into at least 16 points, alternatively.
c) Temporal instability of the irradiance: Temporal instability of the irradiance on the test plane shall be measured by the procedure for long term instability (LTI) in accordance with IEC 60904-9 and shall be within 5 %.
d) Maximum angle of Irradiance: The maximum angle of irradiance to the test specimen shall be within 100.
e) Area of effective Irradiance; The width and height of the area of effective irradiance shall be 100% or greater than each dimension of the test specimen width, W1,, and height, lI.
6.3 Climatic chamber
The climatic chamber is constructed of the following: a transparent aperture, an external airflow generator, an external side baffle (optional), and the surround panel aperture. It maintains the environmental external conditions (see FLgure 3).
a) Transparent aperture: The transparent aperture is installed in order to allow the light from the solar simulator to pass through the climatic chamber to the test specimen. The transparent aperture shall be made from high-transmittance glass specified as follows:
1) the solar transmittance of each glass pane according to ISO 9050 shall be 88,0 % or higher;
2) the difference between the maximum and minimum value of the spectrum transmittance according to ISO 9050:2003, Table 2 within a range of 380 nm to 2 100 nm shall be 0,050 or lower.
b) External airflow generator: The external airflow generator is installed in order to maintain the external surface coefficient of heat transfer on the test specimen. The airflow shall be parallel to the test specimen and the surround panel. The appropriate air speed shall be set to maintain the external surface coefficient of heat transfer.
c) External side baffle (optional): The external side baffle with transparency may be installed in order to form and maintain the environmental external conditions between the test specimen and the surround panel. The external side baffle is very useful to set up the environmental external conditions. More details are presented in ISO 12567-1. In this case, the environmental temperature may be considered as the air temperature. The external side baffle shall be made from high- transmittance glass.ISO 19467-2017 pdf free download.
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