What is BS EN IEC 62097- Hydraulic machines about?
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
- Hydraulic turbines, storage pumps, and pump-turbines – Model acceptance tests (IEC 60193)
- Hydraulic machines, radial and axial – Performance conversion method from model to prototype (IEC 62097)
Who is BS EN IEC 62097- Hydraulic machines for?
BS EN IEC 62097 on hydraulic machines, radial and axial is useful for:
- Hydraulic turbines manufacturers
- Storage pumps and pump-turbines manufacturers
- Research institutes
- Hydroelectric power plants
Why should you use BS EN IEC 62097- Hydraulic machines?
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.
What’s changed since the last update?
BS EN IEC 62097:2019 supersedes BS EN 62097:2009, which is withdrawn.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:
- In introduction, clarifications have been brought such as addition of a sentence which declares the precedence of IEC 62097 over IEC 60193 if any mismatch is found between them
- In Clauses 3 and 4, corrections of the typographical errors
- In Clause 3: changes to be in accordance with presentation of the terms and structure of IEC 60193 (except for the water temperature)
- In Clause 4: Deletion of the clause providing the direct step-up procedures for a whole turbine