ISO 1217:2009(E)
© ISO 2009 – All rights reserved iii
Contents Page
Foreword............................................................................................................................................................. v
1 Scope ..................................................................................................................................................... 1
2 Normative references ........................................................................................................................... 1
3 Terms and definitions........................................................................................................................... 2
3.1 General................................................................................................................................................... 2
3.2 Pressure................................................................................................................................................. 5
3.3 Temperature .......................................................................................................................................... 5
3.4 Flow rate ................................................................................................................................................ 6
3.5 Power ..................................................................................................................................................... 6
3.6 Efficiency ............................................................................................................................................... 6
3.7 Specific energy requirements ............................................................................................................. 7
3.8 Gas properties....................................................................................................................................... 7
4 Symbols ................................................................................................................................................. 7
4.1 Symbols and units ................................................................................................................................ 7
4.2 Subscripts ............................................................................................................................................. 9
5 Measuring equipment, methods and accuracy ............................................................................... 10
5.1 General................................................................................................................................................. 10
5.2 Measurement of pressure .................................................................................................................. 10
5.3 Measurement of temperature ............................................................................................................ 11
5.4 Measurement of humidity .................................................................................................................. 11
5.5 Measurement of rotational frequency............................................................................................... 11
5.6 Measurement of flow rate .................................................................................................................. 11
5.7 Measurement of power and energy .................................................................................................. 12
5.8 Miscellaneous measurements........................................................................................................... 13
5.9 Calibration of instruments ................................................................................................................. 13
6 Test procedures .................................................................................................................................. 13
6.1 General................................................................................................................................................. 13
6.2 Test arrangements.............................................................................................................................. 14
6.3 Evaluation of readings ....................................................................................................................... 15
6.4 Computation of test results ............................................................................................................... 15
6.5 Volume flow rate corrections ............................................................................................................ 16
6.6 Corrected volume flow rate ............................................................................................................... 18
6.7 Power corrections............................................................................................................................... 19
6.8 Corrected power ................................................................................................................................. 20
6.9 Corrected specific energy requirement............................................................................................ 21
7 Uncertainty of measurement ............................................................................................................. 21
8 Comparison of test results with specified values ........................................................................... 21
8.1 General................................................................................................................................................. 21
8.2 Comparison of measured performance curves with guarantee points ........................................ 21
8.3 Comparison of single measuring points with single guarantee points ........................................ 23
8.4 Uncertainties and manufacturing tolerances .................................................................................. 26
8.5 Special information............................................................................................................................. 26
9 Test report ........................................................................................................................................... 28
Annex A (normative) Acceptance test for liquid-ring compressors ........................................................... 29
Annex B (normative) Simplified acceptance test for bare displacement compressors ........................... 32
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