VDI/VDE 2640 Blatt 2:1981-11
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Measurement of water flow in closed conduits; velocity-area method
Hardcopy , PDF
14-04-2022
German
01-11-1981
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Vorbemerkung
1 Allgemeines
1.1 Definition
1.2 Begriffe, Zeichen, Einheiten
1.3 Messprinzip
1.4 Geltungsbereich
2 Messquerschnitt
2.1 Allgemeine Anforderungen
2.2 Querschnittsgrösse
3 Messmethoden
3.1 Allgemeines
3.2 Allgemeine Richtlinien für die Messpunktanordnung
3.3 Allgemeine Richtlinien für die Auswertung
3.4 Geschwindigkeitsverlauf in der Randzone
3.5 Messmethode mit graphischer Auswertung
3.6 Messmethoden mit arithmetischer Auswertung
3.7 Einpunktmethode
4 Messgeräte und Zubehör
4.1 Allgemeines
4.2 Messflügel-Messeinrichtung
4.3 Staurohr-Messeinrichtung
5 Halterungen
5.1 Allgemeines
5.2 Messflügelhalterungen für Kreisquerschnitte
5.3 Messflügelhalterungen für Rechteck querschnitte
5.4 Staurohrhalterungen
6 Durchführen der Messung
6.1 Vorgehen vor der Messung
6.2 Vorgehen während der Messung
6.3 Vorgehen nach der Messung
7 Störeinflüsse
7.1 Verdrängungseffekt
7.2 Turbulenz und Vibration
8 Messunsicherheit
8.1 Allgemeines
8.2 Richtwerte
Schrifttum
| DocumentType |
Standard
|
| Pages |
0
|
| PublisherName |
Verlag des Vereins Deutscher Ingenieure
|
| Status |
Withdrawn
|
| VDI/VDE 2040 Blatt 2:1987-04 | Calculation principles for measurement of fluid flow using orifice plates, nozzles and venturi tubes; equations and formulae |
| VDI/VDE 2642:1996-12 | Ultrasonic fow-rate measurement of fluids in pipes under capacity flow conditions |
| VDI 4285 Blatt 2:2011-03 | Determination of diffusive emissions by measurements - Industrial halls and livestock farming |
| VDI/VDE 2640 Blatt 1:1993-06 | Measurement of fluid flow in closed conduits; general guidelines and mathematical basics |
| VDI/VDE 2640 Blatt 3:1983-11 | Measurement of gas flow in circular; annular or rectangular sections of conduits velocity area method |
| DIN 4325:1971-10 | FIELD ACCEPTANCE TESTS OF STORAGE PUMPS |
| VDI/VDE 2640 Blatt 4:1983-10 | Measurement of mean temperature in fluid flow |
| VDI 2044:2002-11 | Acceptance and performance tests on fans (VDI code of practice for fans) |
| ISO 3354:2008 | Measurement of clean water flow in closed conduits — Velocity-area method using current-meters in full conduits and under regular flow conditions |
| DIN 1944:1968-10 | ACCEPTANCE TESTS ON CENTRIFUGAL PUMPS (VDI-RULES FOR CENTRIFUGAL PUMPS) |
| IEC 60041:1991 | Field acceptance tests to determine the hydraulic performance of hydraulic turbines, storage pumps and pump-turbines |
| ISO 3966:2008 | Measurement of fluid flow in closed conduits Velocity area method using Pitot static tubes |
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