BSI PD ISO/TR 9901:2021

$189.07

Solar energy. Pyranometers. Recommended practice for use

Published By	Publication Date	Number of Pages
BSI	2021	48

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This document gives recommended practice for the use of pyranometers in solar energy applications (e.g. testing of solar photovoltaic panels, solar thermal collectors or other devices, and performance monitoring of solar energy systems). It is applicable for both outdoor and indoor use of pyranometers, when measuring plane of array, global horizontal and reflected irradiance, or radiation from a solar simulator. The measurement may be carried out on either a horizontal or an inclined surface, and the pyranometer may be part of a diffusometer, i.e. combined with a sun-shading device to measure diffuse radiation.

PDF Catalog

PDF Pages	PDF Title
2	National foreword
6	Foreword
7	Introduction
9	1 Scope 2 Normative references 3 Terms and definitions
12	4 Selection of pyranometers and accessories 4.1 General 4.2 Pyranometer selection based on accuracy class
14	4.3 Pyranometer and accessory selection based on other considerations 4.4 Measuring system redundancy and spatial resolution
15	4.5 Common pyranometer accessories 4.5.1 Electronics, data acquisition and power supply
16	4.5.2 Heating and ventilation systems
17	4.5.3 Mounting stands and supports 4.6 Personal safety 5 Recommended practice for use 5.1 General
18	5.2 Pyranometers measuring plane of array and global horizontal irradiance 5.2.1 General 5.2.2 Installation
21	5.2.3 Heating and ventilation 5.2.4 Inspection and maintenance
24	5.2.5 Data acquisition and storage
27	5.2.6 Data quality control and correction
28	5.3 Pyranometers measuring diffuse radiation 5.3.1 General
30	5.3.2 Installation
31	5.3.3 Heating and ventilation 5.3.4 Inspection and maintenance 5.3.5 Data acquisition and storage 5.3.6 Data quality control and correction
32	5.4 Pyranometers measuring reflected radiation 5.4.1 General 5.4.2 Installation
33	5.4.3 Inspection and maintenance 5.4.4 Data acquisition and storage 5.4.5 Data quality control and correction
34	5.5 Pyranometer calibration and performance verification 5.5.1 Calibration
36	5.5.2 On-site performance verification/check 5.5.3 Introduction of a new pyranometer sensitivity
37	5.6 Uncertainty evaluation of the measurement
40	5.7 Indoor use of pyranometers
42	Annex A (informative) Heating and ventilation systems
44	Annex B (informative) Shading losses in reflected radiation measurement
45	Bibliography