The design of the vaned diffuser of a centrifugal compressor is still based on a considerable amount of empiricism in its design methodology. Parameters such as area ratio and blockage, which are more relevant to conical diffusers, are used in conventional design practice.
White paper on failures of photovoltaic modules in the field - IEA supported by ERC
ERC StG CA2PVM outreach activity on Photovoltaic durability and reliability research in collaboration with the International Energy Agency.
An open access report for policy makers, PV investors and researchers interested in failure mechanisms of PV modules in the field has just been released and is downloadable from this link: