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Testing of Solar Geysers

Malcolm Vowles

Manager Certification, Mechanical, Metallurgy & Safety Industries

SABS COMMERCIAL (PTY) LTD

on

15 October 2009

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Standardization of Solar Water Heater Systems is

established in South Africa in terms of the South African

National Standard, SANS 1307:2009

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Standardization of Solar Water Heater Systems is

established in South Africa in terms of the South African

National Standard, SANS 1307:2009

Putting Standards into Practice

To promote energy efficiency;

To reduce the risk as perceived by the purchaser, end-user or Regulator;

To establish Norms for safety and performance;

Conformity assessment by Product Certification based on the accepted standard is a

means of demonstrating product compliance.

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Third Party Conformity Assessment

What are the South African Requirements?

Compulsory safety requirements Electrical (compulsory)

Hydraulic pressure, temperature (by reference)

Compliance to designated standards in accordance with the National Water

Services Act and National Building Regulations (under review, re-issue)

Governmental directives and industrial incentives to conserve energy

Training of Personnel installers, plumbers training modules based on

standard requirements

Assurance by an independent third party of conformance to product

requirements

A measure of product efficiency

Value for Money

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SA National Standard

SANS 1307:2009Domestic solar water heaters

The National Standard is for solar water heater systems

Collector, storage tank and associated plumbing - not just collectors

References other SANS standards,

SANS 151, etc.

Includes specific requirements for South African conditions Hail test, etc

Specifies Test Methods

Mechanical, electrical, solar

Advanced (outdoor) thermal performance exposure test equivalent International

test method

SA result for complete solar system, not component testing

Draft ISO method under consideration for comparing component and system

thermal performance test results

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Outdoor Exposure Test Facility

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Thermal Performance Exposure Test

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Rain Penetration Test

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Resistance to Freezing

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Pulsation Test

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SA National Standard

SANS 1307:2009Domestic solar water heaters

First published 1980, now into 4th edition

Equivalent to International and Regional Standards

ISO 9459; EN 12975, etc.

Convergence of standards internationally SANS 1307 to follow?

Covers configurations such as integral / close-coupled; direct / indirect;thermo-siphon / pumped

Certain advances in solar technology / configurations / materials are not

covered by the standard or reference requirements

SANS 151:2008 Fixed electrical storage water containers.

Under review to include other materials, etc

Limitation on acceptance of International tests and products

Due to compulsory SA requirements, test methodology, etc.

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Conformity Assessment

Full Test Report to SANS 1307 required to demonstrate conformance to

specification requirements

Includes hot water storage unit, safety valves, etc

Required for acceptance under the Eskom DSM Programme

Test Report only applicable to the sample under test

Prototype approval

Does not afford Product Certification Approval

Quality Management System Approval (ISO 9001:2008) is NOT Product

Approval

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Product Certification

Certification of a product is a means of providing assurance that it

complies with specified standards and other normative documents

SABS Mark Schemetype 5 Product Certification scheme

Product testing and manufacturing quality assurance audit, plus post-approval sampling and test

Permit awarded to the manufacturer allowing the application of the SABS

Mark to the accepted product.

Provides ongoing assurance of product quality to standard requirements

Required for maintenance of products on the ESKOM DSM Programme

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Thank You

Mark Scheme