Bestimmung Von Leistung Und Wirkungsgrad Eines Ventilators

Name: Bestimmung Von Leistung Und Wirkungsgrad Eines Ventilators
Brand: Vs Verlag Fur Sozialwissenschaften
SKU: 9783663035596
Price: 5825.0 INR
Availability: InStock

by Leonhard Bommes

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ISBN13: 9783663035596
Binding: Paperback
Subject: N/A
Publisher: Vs Verlag Fur Sozialwissenschaften
Publisher Imprint: Vs Verlag Fur Sozialwissenschaften
Publication Date: January 1, 1958
Pages: 47
Original Price: GBP 45.99
Language: German
Edition: 1958
Item Weight: 141 grams
BISAC Subject(s): Mechanical

About The Book

Die letzten Jahre brachten erhebliche Fortschritte im Ventilatorenbau. Diese wurden nicht zuletzt dadurch erreicht, da die Me verfahren immer mehr verbessert wurden. Aber nicht nur die Me methoden mu ten verfeinert werden, sondern es wurde auch notwendig, die Begriffe "Nutzleistung, Wellenleistung und Wirkungsgrad" schärfer zu definieren. In den bisheri- gen Regeln für Leistungsversuche an Ventilatoren sind diese Begriffe nicht immer exakt erklärt. Die Regeln für'Leistungsversuche an Verdich- tern hingegen sind viel zu sehr auf die Eigenheiten der Kompressoren zugeschnitten, so da sie in .vielen Fällen für den Ventilator unbrauch- bar sind. Im ersten Abschnitt sind die Begriffe "Volumenstrom, Gasamtdruckerhöhung, Nutzleistung, Wellenleistung" beschrieben, wobei auf die rechnerische Ermittlung des Gesamtdruckes besonderer Wert gelegt wurde. Soweit mög- lich, wurden einwandfreie Me verfahren, die sich seit Jahren in der. Pra- xis bewährt haben, mit zur Erläuterung herangezogen. Der zweite Abschnitt enthält eine Zusammenstellung der wichtigsten Feh- ler, die bei Versuchen gemacht werden können, und Hinweise, wie man 1 sie weitgehend 'vermeiden kann ) 2) 3) 4). Fast bei jedem Ventilatorenhersteller sind andere Me methoden gebräuch- lich. Da diese Verfahren nicht immer richtig sind, wundert den Fach- mann nicht, der die Vielzahl der Probleme bei Abnahmeversuchen an Ven- tilatoren kennt. 1. Die vorliegende Studie entstand auf Grund jahrelanger Erfahrungen bei der Forschungsabteilung der Firma Pollrich & Co., M.Gladbach.

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