BS EN 17038-1-2019 Pumps – Methods of qualification and verification of the Energy Efficiency Index for rotodynamic pump units Part 1: General requirements and procedures for testing and calculation of Energy Efficiency Index (EEI).
5 Qualification of pump unit types in respect to their Energy Efficiency Index
5.1 General remarks
The qtialitication of a pump unit type in respect to the Energy Efficiency Index (EEl) is the responsibility of the company which places it on the market and/or puts it into service.
Product information on EEl of a pump unit type can either state the (legally) required EEl in the format “EEl O.XX or can indicate a lower value ‘EEl s O.YY if the pump unit type is quahiled for that and the manufacturer decides so. EEl values shall be rounded to two decimal places.
5.2 Qualification methods
Generally, the method which is applied to determine the EEl-value in the Frame of the qualification procedure is left to the company which is responsible.
In this document, two methods of qualification are described. Both methods result in a high probability of a successful verification:
1) Tests on complete pump units and evaluation of the test results to determine the EEl-value.
2) Determination of the EEl-value by applying a semi-analytical model of the complete pump unit.
These methods are described in detail in specific parts of this standard for the respective types of pump units.
1) In the case of qualification by tests on complete pump units the following procedure shall be applied:
To qualify a pump unit type for conformity to requirements by law with respect to the EEl-value, tests and evaluations shall be carried out by taking pump units randomly out of the pump unit population. From the result of measurements and evaluations, the mean value EElmean shall be determined (for example as described in Annex B). The pump unit type is then qualified for conformity to law if the mean EEl-value determined as described above fulfils the condition
EElmean < EEldec)ared