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eLibrary > BS EN 17038-1:2019 Pumps. Methods of qualification and verification of the Energy Efficiency Index for rotodynamic pump units - General requirements and procedures for testing and calculation of Energy Efficiency Index (EEI) >

BS EN 17038-1:2019 Pumps. Methods of qualification and verification of the Energy Efficiency Index for rotodynamic pump units - General requirements and procedures for testing and calculation of Energy Efficiency Index (EEI), 2021

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BS EN 17038-1:2019 Pumps. Methods of qualification and verification of the Energy Efficiency Index for rotodynamic pump units - General requirements and procedures for testing and calculation of Energy Efficiency Index (EEI), 2021

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1 Scope
2 Normative references
3 Terms and definitions, symbols and subscripts
4 Energy Efficiency Index (EEI) calculations [Go to Page]
4.1 General information and explanation on EEI
4.2 Weighted-average value of the electric power input
4.3 The reference electric power input P1, ref
5 Qualification of pump unit types in respect to their Energy Efficiency Index [Go to Page]
5.1 General remarks
5.2 Qualification methods
6 Verification of the Energy Efficiency Index for pump units [Go to Page]
6.1 General remarks
6.2 Procedure and decision
Annex A (informative)Mean value and confidence interval of the Energy Efficiency Index EEI
Annex B (informative)Methods recommended for the qualification of a pump unit type by test [Go to Page]
B.1 General remarks
B.2 Determination of the mean value of EEI of a pump unit type population from a test on only one test pump unit
B.3 Determination of the mean value of EEI of a pump unit type population from a sample test of M pump units
Annex C (informative)Application of mathematical statistics on tests [Go to Page]
C.1 Purposes of applying statistics in the frame of qualification and verification
C.2 Normal or Gaussian distribution
C.3 Confidence interval
C.4 Outlier test
Annex D (informative)Measurement uncertainties
Annex E (informative)The probability of the result of the verification procedure [Go to Page]
E.1 General
E.2 Probability that the conformity to law is confirmed by verification tests
E.3 Probability that a numerical value of indicated by the responsible company is confirmed by verification tests [Go to Page]

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BS EN 17038-1:2019 Pumps. Methods of qualification and verification of the Energy Efficiency Index for rotodynamic pump units - General requirements and procedures for testing and calculation of Energy Efficiency Index (EEI), 2021

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