series and parallel pump lab report
This results in an efficiency difference of 185 percent in pump 1 when operating in series compared to parallel and a difference of 293 percent in pump 2 when operating in series compared to parallel. The parallel pumps had efficiency of 1407 for pump 1 and 1316 for pump 2.
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Serial Parallel Pump Test Rig is specially designed to demonstrate the operating characteristics of centrifugal pump in series parallel or single pump operation.
. Check that both pumps are fitted with similar impellers the impellers may be viewed through the clear cover plate of each pump. Similarity laws are discussed in Section 421 of. 21 Pumps in Series.
A single pump may be insufficient to produce the performance required. Parallel pump system Qpump 300. This equipment will explore the relationship between pressure head and flow rate of a single pump and of two identical pumps that run in series or in parallel.
Parallel Pump Details Basic Parallel Pump Installation Figure 1 A simple example of two parallel pumps is shown in Figure 1. The combined pump head-capacity curve is found by adding the heads of the single pump curves at the same capacity. Objective of the Experiment.
Then combine that equivalent resistance with the single resistor in series using Equation 2. Of head loss in a specific system. In this experiment it was expected of the experimenter to have a basic knowledge of circuits in both.
Overall head for pumps in parallel is calculated using Equation 9b. But in case of series practically it is not possible eg. Ensure the inlet valve and gate valve are both fully open.
The training unit operates in close loop. STUDY OF CENTRIFUGAL PUMPS Objectives. This is useful when high pressure is required but the same flow rate of a single pump is sufficient.
The characteristic curves of. Single pump system Qpump 600 gpm hp 270 ft 2. Series and Parallel Pump Objectives To demonstrate the principle operating characteristics of centrifugal pump in series parallel or single pump operation.
Parallel pump apparatus is specially designed to demonstrate to students the operating characteristics of centrifugal pump in series parallel. January 28 2013 AIM. Assuming that the pumps are identical each pump must provide the following.
Important details like suction diffusers and isolation valves are not shown. Two pumps may be connected in series so that water passes first through one pump and then through the second. To determine the pump power.
When two pumps operate in series the flowrate is the same as for one single pump but the total head is increased. Theory The efficiencyof asingle pumptendstobe insufficientwhenrequiredtoproduce a certain performance. To investigate the circuits to tell whether the resistors are in parallel or in series also to determine the internal resistance of a 15V cell.
Combining two pumps increases the performance of the pumping system. From the head graph of the flow discharge Figure 5 below it can be seen that the series of pump head is larger than the pump head parallel circuit. When identical pumps run in series the pressure head is approximately doubled but the flow rate remains the same.
Two pumps connected through a pipe work that allows them to be operated individually either in series or in parallel. With pumps in parallel we can increase the flow almost twice for the same head delivered while head delivered can be increased twice by arranging pumps in series. 1 st pump connected with 2nd pump in parallel and 1st pump having head of 50 meter say water than p5kgcm2this 5kgcm2 pressure will goes into the the suction side of 2nd pump at 5kgcm2 and can damage the impeller.
When two pumps operate in parallel the total head change remains fixed. March 13 2019 From. Two centrifugal pumps connected in parallel.
To findoutperformance of pumpsinparallel Equipment Figure 1. Parallel and series configurations of pumps which require a specific performance criteria. Hence where a single pump is inappropriate for large flow rate or high head pumps can be arranged in series and parallel or combination of both to suite our requirement.
Up to 24 cash back Centrifugal pumps take up little floor space and create a uniform and non-pulsating flow. When identical pumps are in series the pressure head is doubled but the flow rate remains constant. Series And Parallel Pump Lab Report.
Series and parallel pumps introduction to the equipment the. 22m b Circulation Tank Transparent acrylic water tank is provided to supply water to P1 and P2. To determine pumpperformance ii.
To understand the use of pumps in series and in parallel. How To Operate Centrifugal Pumps In Series Or Parallel 2015. While arranging pumps in parallel flow will add ie q1q2.
Faculty of Engineering Computing Laboratory Report Title of Experiment. In serial operation the heads of the pumps are added and in parallel operation the flow rates capacities of the pumps are added. This bibliography was generated on Cite This For Me on Monday March 2 2015.
Lab1 6 3 Experimental methods and materials Figure 3a Equipment Assembly Series Pumps Parallel Pumps P1 P2 P1 P2 Lab1 7 31 Specifications of the unit a Pumps 2 units of Horizontal Single Stage Centrifugal PumpP1andP2 Flowrate. The characteristic curves of pumps in series or parallel should be. Overall electrical input power for pumps in series and in parallel combination is equal to Wi pump1 Wi pump2.
These are the sources and citations used to research Engineering lab report pumps in parallel and series. To determine the pump characteristic curves of pump in series and parallel configuration and single operation. Req R1R2 R1 R2 Equation 4 When a circuit has two resistors in parallel and another resistor in series this condition can be dealt by combining the resistors in parallel into an equivalent resistance using Equation 4.
Series and Parallel Circuits Date Given. Summarize your calculations in the Results Tables. Two pumps connected through a pipe work that allows them to be operated individually either in series or in parallel.
Provide a table with the predicted values of discharge and head for a single pump pumps in parallel and pumps in series rotating at 3000 revmin. Pump report 1. Set the 3-way valve for flow in series the earlier experiments have all.
Fluid Mechanics Centrifugal Pump Performance Experiment 200 gpm results in 30 ft. To findoutperformance of pumpsinseries iii. When identical pumps are in series the.
This training unit operates in close loop. B create a new results sheet using the icon in the. The experimental unit provides the determination of the characteristic behavior for single.
When pumps are run in parallel the. Q pump Qdes hpump 05 hdes For example if the design point for a given piping system were Qdes 600 gpm and hsys 270 ft the following pump selection criteria would apply. Series and Parallel pumps Armfield FM51 2.
Overall head for pumps in series is calculated using Equation 8b. Smaller pumps may have a lower first cost and may also cost less to install operate and maintain. Given the data for reference pump A N 1850 rpm collectedderived in this lab use similarity laws to predict the values of discharge and head for pumps rotating at 3000 revmin.
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