Khalifa atia (10 resultados)

Paperback. Condición: New.

Condición: New.

Condición: New. In English.

Taschenbuch. Condición: Neu. EXPERIMENTAL AND NUMERICAL INVESTIGATION OF FLOW-INDUCED VIBRATION | IN A HIGH PRESSURE DOUBLE VOLUTE CENTRIFUGAL PUMP | Atia Khalifa | Taschenbuch | Einband - flex.(Paperback) | Englisch | 2010 | VDM Verlag Dr. Müller | EAN 9783639286618 | Verantwortliche Person für die EU: OmniScriptum GmbH & Co. KG, Bahnhofstr. 28, 66111 Saarbrücken, info[at]akademikerverlag[dot]de | Anbieter: preigu.…

Paperback. Condición: New.

PF. Condición: New. This item is printed on demand. Brand new book, sourced directly from publisher. Dispatch time is 6-7 days from our warehouse. Book will be sent in robust, secure packaging to ensure it reaches you securely.

PAP. Condición: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

PAP. Condición: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Kartoniert / Broschiert. Condición: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Khalifa AtiaDr. Atia E. Khalifa, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran-Saudi Arabia. His B. Sc. From Menoufia University-Egypt, PhD from KFUPM 2009 in Mechanical Engineering, Post-Doc at MIT-Cambridge MA..…

Taschenbuch. Condición: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - This work is an experimental and numerical investigation of the flow induced vibration problem at blade passing frequencies of a high-pressure double volute boiler feed pump. The effects of variable operating conditions and different design modifications were studied by model testing to minimize the vibration level. The amplitude and strength of the pressure fluctuation inside the pump depend on the measuring location with respect to the interaction zone at volute tongues. The unsteady pressure fluctuations are very sensitive to the flow rate. Pressure fluctuations are increased at high rotational speeds and at off-design conditions. The original pump has a special V-shaped cut at the exit of impeller blades which reduces the pressure fluctuations up to 45% depending on flow rate and measuring location. It also reduced pump vibration by 20 to 50% depending on flow rate. The selection of the suitable gap between impeller and diffuser vanes for minimum vibration levels was based on experimentation under the expected operating conditions. Smaller gaps are not preferable for the pressure fluctuations inside the pump since they produce higher impeller/volute interaction.…