Submersible Pump Application The system consists of a submersible pump controlled by a Danfoss VLT AQUA Drive and a pressure transmitter. The transmitter gives a 4-20 mA feedback signal to the VLT AQUA Drive‚ which keeps a constant pressure by controlling the speed of the pump. To design a drive for a submersible pump application‚ there are a few important issues to take into consideration. Therefore the drive used must be chosen according to motor current. 1. The motor is a so called “Can motor”
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Centrifugal Pump @ 1750 RPM · Figure 1 Head Pressure versus Flowrate · Figure 2 Ideal Power versus Head Pressure (H) · Sample Calculations · Raw Data Discussion of Experiment A centrifugal pump contains an impeller or set of vanes encased in housing. Energy is added to the fluid in the form of velocity and pressure as a result of the impeller turning. An engineer must determine the range of flow rates required when using a centrifugal pump. The centrifugal
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machinery problem. We intend to do a project on “Vibration analysis of centrifugal pump at BPCL Kochi Refinery”. The vibration analysis we have done is a part of predictive maintenance on rotary equipments. This technique is mainly used for the improved performance of equipments. Using this we can predict the condition of internal parts of the equipment. We are mainly dealing with the vibration analysis of centrifugal pump‚ compressors and motors. It includes typical causes of vibration like misalignment
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consider a multiple pump system to meet the design requirements. Two typical options include parallel and series configurations of pumps. Specific performance criteria must be met when considering these options. Given a piping system which has a known design flow rate and head requirements‚ Qdes‚ hdes‚ the following pump selection criteria apply. Pumps in Parallel: Assuming that the pumps are identical‚ each pump must provide the following: Q(pump) = 0.5 Qdes h(pump) = hdes Pumps in Series: Assuming
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characteristics of the pump‚ comparing the performance characteristics for three different Reynolds numbers and explaining the effects observed and to also make predictions about the performance for a pump with an impeller diameter of 228mm using the data obtained in the experiments. This experiment was conducted under room temperature. The motor was first adjusted to 3000 rpm and the input valve which was used to control the input pressure was adjusted in 0.1bar steps. Pump Inlet and delivery static
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D. Marie Wong Check Point 1 CJS/200 Craig Levins The crime control model and due process model are from my understanding of our reading materials this week a safety net of sorts. I say this because one protects the innocent from the criminals‚ while the other one protects the criminals from the system. In theory this makes sure that if you have done something wrong you will have to face up to it‚ while causing as little harm as possible to the innocents involved. It also was put in place to
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Introductions to Corrections Heather Cunningham CJS/230 April 3‚ 2013 Viviyonne Lee Punishment is the infliction of an unpleasant or negative experience on an offender in response to an offense. Today‚ punishment includes rehabilitation‚ deterrence‚ retribution‚ incapacitation‚ and reparation. Punishment is a penalty that results as a rule or law violation. Once a criminal has been punished through physical or economic sanctions then the criminal is considered square with his victim along
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TUTORIAL CENTRIFUGAL PUMP SYSTEMS by Jacques Chaurette p. eng. copyright 2005 Fluide Design Inc.‚ 5764 Monkland avenue‚ Suite 311‚ Montreal‚ Quebec‚ Canada H4A 1E9 Tel: 514.484.PUMP (7867) E-mail: jchaurette@fluidedesign.com Web site: www.fluidedesign.com page….2 Table of contents 1. Different types of pump systems 2. Three important characteristics of a pump system: pressure‚ friction and flow 3. What is friction in a pump system 4. Energy and head in pump systems 5. Static head 6. Flow rate
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E. Reinhart Royce J. Rhoads* Kenneth L. Saucier Paul R. Stodola William X. Sypher* Robert E. Tobin* Kevin Wolf *Member of subcommittee that prepared this report. †Chairman of subcommittee that prepared this report. This report describes pumps for transporting and placing concrete. Rigid and flexible pipelines are discussed and couplings and other accessories described. Recommendations for proportioning pumpable concrete suggest optimum gradation of aggregates; outline water‚ cement‚ and
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CENTRIFUGAL PUMP A centrifugal pump converts the input power to kinetic energy in the liquid by accelerating the liquid by a revolving device - an impeller. The most common type is the volute pump. Fluid enters the pump through the eye of the impeller which rotates at high speed. The fluid is accelerated radially outward from the pump chasing. A vacuum is created at the impellers eye that continuously draws more fluid into the pump. The energy created by the pump is kinetic energy according the
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