In this task, priority was given to the development of reliable and practical
methods for assessing the performance of collectors and complete systems and for
evaluating their reliability and durability. Test procedures were developed and
recommended which are more accurate, and are applicable to a wide range of
collector types, test conditions and operating conditions.
Pioneering Task 3 work in solar simulators led to collector test results from
indoor testing which are comparable to those obtained from outdoor test
facilities, allowing routine testing to be carried out throughout the year.
In addition, short-term tests were developed which can predict the long-term
performance of systems. Common failure modes of collectors and the influence of
design and environmental factors on degradation were also studied, and a
handbook on qualification testing and inspection procedures prepared.
United Kingdom (1983-1977)