ДСТУ EN 12975-2:2019 Установки солнечные термические и их составляющие. Солнечные коллекторы. Часть 2. Методы испытаний (EN 12975-2:2006, IDT)

ДСТУ EN 12975-2:2019
(EN 12975-2:2006, IDТ)

Установки сонячні термічні та їхні складники.
Сонячні колектори. Частина 2. Методи випробувань

 
   
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Symbols and units

5 Reliability testing of liquid heating collectors

5.1 General

5.2 Internal pressure tests for absorbers

5.3 High-temperature resistance test

5.4 Exposure test

5.5 External thermal shock test

5.6 Internal thermal shock test

5.7 Rain penetration test

5.8 Freeze resistance test

5.9 Mechanical load test

5.10 Impact resistance test (optional)

5.11 Final inspection

5.12 Test report

6 Thermal performance testing of liquid heating collectors

6.1 Glazed solar collectors under steady state conditions (including pressure drop)

6.2 Unglazed solar collectors under steady state conditions (including pressure drop)

6.3 Glazed and unglazed solar collectors under quasi-dynamic conditions

Annex A (normative) Schematics for durability and reliability tests

Annex В (normative) Durability and reliability test report sheets

Annex C (normative) Stagnation temperature of liquid heating collectors

Annex D (normative) Performance test report for glazed solar collectors

Annex E (normative) Performance test report for unglazed solar collectors

Annex F (normative) Modelling of the coefficients c<1 to eg of the collector model of 6.3

Annex G (normative) Measurement of effective thermal capacity

Annex H (informative) Comparison of the collector model of 6.1 to the collector model of 6.3

Annex I (informative) Properties of water (see DIN V 4757-4:1995-11)

Annex J (informative) Performance test report summary for quasi dynamic test method

Annex К (informative) General guidelines for the assessment of uncertainty in solar collector efficiency testing

Annex L (informative) Determination of the pressure drop across a collector

Bibliography