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BS EN ISO 22975-1:2016 Solar energy. Collector components and materials - Evacuated tubes. Durability and performance, 2016
- Contents Page
- European foreword
- Endorsement notice
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Classification and test list
- 5 Testing of material
- 5.1 Inspection for stones and knots
- 5.1.1 General
- 5.1.2 Test conditions
- 5.1.3 Apparatus
- 5.1.4 Procedure
- 5.1.5 Results
- 5.2 Inspection for scratches
- 5.2.1 General
- 5.2.2 Test conditions
- 5.2.3 Apparatus
- 5.2.4 Procedure
- 5.2.5 Results
- 5.3 Testing of solar transmittance
- 5.3.1 General
- 5.3.2 Test conditions and apparatus
- 5.3.3 Procedure
- 5.3.4 Results
- 5.4 Testing of solar absorptance
- 5.4.1 General
- 5.4.2 Test conditions and apparatus
- 5.4.3 Procedure
- 5.4.4 Results
- 5.5 Testing of hemispherical emittance
- 5.5.1 General
- 5.5.2 Test conditions
- 5.5.3 Apparatus and procedure
- 5.5.4 Results
- 6 Durability testing of evacuated tube
- 6.1 Vacuum performance
- 6.1.1 General
- 6.1.2 Test conditions and apparatus
- 6.1.3 Procedure
- 6.1.4 Results
- 6.2 Resistance to thermal shock
- 6.2.1 General
- 6.2.2 Test conditions and apparatus
- 6.2.3 Procedure
- 6.2.4 Results
- 6.3 Resistance to impact
- 6.3.1 General
- 6.3.2 Principle
- 6.3.3 Procedure
- 6.3.4 Results
- 6.4 Resistance to internal pressure
- 6.4.1 General
- 6.4.2 Test conditions and apparatus
- 6.4.3 Procedure
- 6.4.4 Results
- 7 Performance testing of evacuated tube
- 7.1 Tests for determination the exposure parameter
- 7.1.1 General
- 7.1.2 Test conditions
- 7.1.3 Apparatus
- 7.1.4 Procedure
- 7.1.5 Results
- 7.2 Tests for determination of sum of solar irradiation for temperature increase of double-glass evacuated tube
- 7.2.1 General
- 7.2.2 Test conditions
- 7.2.3 Apparatus
- 7.2.4 Procedure and results
- 7.3 Tests to determine the average heat loss coefficient of a double-glass evacuated tube
- 7.3.1 General
- 7.3.2 Test conditions
- 7.3.3 Apparatus
- 7.3.4 Procedure
- 7.3.5 Results
- Annex A (informative) Configuration schemes of evacuated tubes
- Annex B (normative) Test report
- Annex C (normative) Determination of the external surface area of absorber tube for double-glass evacuated tubes
- Bibliography [Go to Page]
