• BS EN 12975-2:2006

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Thermal solar systems and components. Solar collectors Test methods

    Available format(s):  Hardcopy, PDF

    Superseded date:  30-11-2013

    Language(s):  English

    Published date:  28-04-2006

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    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 test 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 B (normative) Durability and reliability test report
                        sheets
          B.1 Record of test sequence and summary of main results
          B.2 Internal pressure test for inorganic absorbers
          B.3 Internal pressure test for absorbers made of organic
               materials
          B.4 High-temperature resistance test
          B.5 Exposure test
          B.6 External thermal shock test:
          B.7 Internal thermal shock test:
          B.8 Rain penetration test
          B.9 Freeze resistance test
          B.10 Mechanical load test
          B.11 Impact resistance test using steel balls
          B.12 Impact resistance test using ice balls
          B.13 Final inspection results
    Annex C (normative) Stagnation temperature of liquid heating
                        collectors
          C.1 General
          C.2 Determination of stagnation temperature
    Annex D (normative) Performance test report for glazed solar
                        collectors
          D.1 General
          D.2 Solar collector description
          D.3 Test results
    Annex E (normative) Performance test report for unglazed solar
                        collectors
          E.1 General
          E.2 Solar collector description
          E.3 Test results
    Annex F (normative) Modelling of the coefficients c[1] to c[6]
                        of the Collector model of 6
    Annex G (normative) Measurement of effective thermal capacity
          G.1 Test installation
          G.2 Indoor test procedure
          G.3 Outdoor or solar irradiance simulator test procedure
    Annex H (informative) Comparison of the collector model of 6.1 to
                          The collector model of 6
    Annex I (informative) Properties of water (see DIN V
                          4757-4:1995-11)
          I.1 Density of water (at 1 bar) in kg/m[3]
          I.2 Specific heat capacity of water (at 1 bar) in kJ/kg K)
    Annex J (informative) Performance test report summary for
                          quasi dynamic test method
    Annex K (informative) General guidelines for the assessment
                          of uncertainty in solar collector
                          efficiency testing
          K.1 Introduction
          K.2 Measurement uncertainties in solar collector efficiency
              testing
    Annex L (informative) Determination of the pressure drop across
                          a collector
          L.1 General
          L.2 Test installation
          L.3 Preconditioning of the collector
          L.4 Test procedure
          L.5 Measurements
          L.6 Pressure drop caused by fittings
          L.7 Test conditions
          L.8 Calculation and presentation of results
    Bibliography

    Abstract - (Show below) - (Hide below)

    Gives test methods for validating the durability, reliability and safety requirements for liquid heating collectors as specified in EN 12975-1.

    General Product Information - (Show below) - (Hide below)

    Committee RHE/25
    Development Note Supersedes 97/718661 DC (01/2003) Supersedes 04/30113519 DC. (04/2006)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    12/30177610 DC : 0 BS 5918 - SOLAR HEATING SYSTEMS FOR DOMESTIC HOT WATER - CODE OF PRACTICE
    13/30274184 DC : 0 BS 5918 - SOLAR HEATING SYSTEMS FOR DOMESTIC HOT WATER - CODE OF PRACTICE

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 9845-1:1992 Solar energy — Reference solar spectral irradiance at the ground at different receiving conditions — Part 1: Direct normal and hemispherical solar irradiance for air mass 1,5
    ISO 9459-1:1993 Solar heating — Domestic water heating systems — Part 1: Performance rating procedure using indoor test methods
    ISO 9488:1999 Solar energy Vocabulary
    ISO 9060:1990 Solar energy Specification and classification of instruments for measuring hemispherical solar and direct solar radiation
    ISO 9553:1997 Solar energy — Methods of testing preformed rubber seals and sealing compounds used in collectors
    EN 12975-1:2006+A1:2010 Thermal solar systems and components - Solar collectors - Part 1: General requirements
    NFP 50 501 : 1980 LIQUID CIRCULATION SOLAR DETECTING ELEMENTS - MEASUREMENT OF THERMAL PERFORMANCES
    ISO/TR 9901:1990 Solar energy Field pyranometers Recommended practice for use
    ISO 9847:1992 Solar energy — Calibration of field pyranometers by comparison to a reference pyranometer
    EN ISO 5167-1:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 1: General principles and requirements (ISO 5167-1:2003)
    EN ISO 9488:1999 Solar energy - Vocabulary (ISO 9488:1999)
    ISO 5167-1:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements
    ISO 9459-2:1995 Solar heating — Domestic water heating systems — Part 2: Outdoor test methods for system performance characterization and yearly performance prediction of solar-only systems
    ASHRAE HDBK REFRIGERATION : 2014 ASHRAE HANDBOOK - REFRIGERATION
    ASHRAE 41.7 : 2015 METHODS FOR GAS FLOW MEASUREMENT
    ISO 9806-1:1994 Test methods for solar collectors Part 1: Thermal performance of glazed liquid heating collectors including pressure drop
    ISO 9808:1990 Solar water heaters Elastomeric materials for absorbers, connecting pipes and fittings Method of assessment
    BS 6757:1986 Methods of test for thermal performance of solar collectors
    ISO 9846:1993 Solar energy Calibration of a pyranometer using a pyrheliometer
    ISO 9806-2:1995 Test methods for solar collectors Part 2: Qualification test procedures
    ISO 9806-3:1995 Test methods for solar collectors — Part 3: Thermal performance of unglazed liquid heating collectors (sensible heat transfer only) including pressure drop
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