BS EN IEC 62097 is an International Standard that establishes the prototype hydraulic machine efficiency from model test results, with consideration of scale effect including the effect of surface roughness.
BS EN IEC 62097 is intended to be used for the assessment of the results of the contractual model tests of hydraulic machines.
BS EN IEC 62097 forms an element of a series of standards that deals with model testing of hydraulic machines. The series has two groups describing
BS EN IEC 62097 on hydraulic machines, radial and axial is useful for:
BS EN IEC 62097 is intended to be used mainly for the assessment of the results of contractual model tests of hydraulic machines. If it is used for other purposes such as the evaluation of refurbishment of machines having very rough surfaces, special care should be taken as described in this document. This helps improve the hydraulic machine performance.
Advances in the technology of hydraulic machines for hydroelectric power plants provided background for updating and revising the scale effect methodology of IEC 60193. The advancement in the knowledge of scale effects originates from work done by research institutes, manufacturers, and relevant working groups within the organizations of IEC and IAHR.
BS EN IEC 62097:2019 supersedes BS EN 62097:2009, which is withdrawn. BS EN IEC 62097:2019 includes some technical changes with respect to BS EN 62097:2009. These include:
EN 62097:2009/A1
IEC 62097:2019