Pump probe spectroscopy is the simplest experimental technique used to study ultrafast electronic dynamics. Efficiency of the centrifugal pumplab report pump power. The probe beam interacts with the sample and then is detected. An introduction to the technique and applications of pump.
Characteristics of centrifugal pumps working in direct or. The centrifugal pump is, by contrast, a rotodynamic machine. In addition to pump performance results, lab reports included paragraphs on. Randy heisch, from georgetown in texas, very kindly sent us these incredible pictures. Performance characteristics of centrifugal pump conveying. Pdf experimental study on a centrifugal pump with an open.
The schematic arrangement of the test rig facility and test equipment are shown in figure2,whichhavethe. This is due to their advantages like small in size, easier for maintenance, high efficiency, etc. The actual experimental setup consists of a multistage centrifugal pump set turbine. The pump was operated nominally at reynolds number of 4e7, 3. Water tank closed loop pumps differential pressure transducers valves watt meters digital meters orifice flow meter prelab assignment. The pump performance characteristic, which is pressure head jump, power requirement, flow rate influence and pump speed influence. Experimental and numerical investigations have been carried out to study the behaviour of a centrifugal pump operating in direct mode or turbine mode. State key laboratory of hydro science and engineering, department of thermal. Plot the pressure versus flow characteristic of the pump for each speed on the same plot. In addition, this experiment gives the student further exposure to the use of. These pumps are heavily used in industry to transport industrial fluids, hot water, and chilled water.
Set the pump speed and adjust the valve to obtain the corresponding torque. In this experiment, pump system performance will be determined. Performance optimization in a centrifugal pump impeller by. The upper circuit is the primary or driven one, contains the test pump that takes the moving fluid. Experiment is simple so that it can be completed in short time e. Power supply and the water tap is opened before experiments can be started. Lab 8centrifugal pump experimentmethod pump liquids. Pump head and flow rate will be measured in valid ways. The original pump was tested in centrifugal pump performance test platform. For the purposes of the present experiment, it was desirable to provide experimental equipment which would make it possible to carry out flow visualization within.
Single pump a set the 3way valve for flow in single pump and close the pump 2 outlet valve as shown in the figure 3 figure 3. Though it requires oil to run, the annual oil change is a simple straightforward task that. Compare the measured characteristics with the theoretical characteristics. Experimental study of the flow in an external gear pump by. For either experiment 1 or 2 depending on the amount of data the more the better, calculate the efficiency of the pump at each data point. Ce415l report requirements for lab report for exp 7 part 1 centrifugal pump performance curves on a single graph, labeled experiment 7 part 1 centrifugal pump performance curves, plot the following parameters vs. Maximum normal capacity line should not operate in the region to the right of the line because pump can be unstable. Bourdon gages are mounted at the suction and discharge sides of the pump.
Index introduction page 1 chapteri,relationbetweenperipheralvelocity andhead 2 chapterii,design 9. The pump consists of two spur gears inside an enclosure and in mesh with each other, as shown in the figure below. Set the control valve at its fully closed position. The inputs are set in each order which are temperature, flow indicator, pressure, power. In a positive displacement pump, a fixed volume of fluid is forced from one chamber into another. To study the characteristics of multistage two stage centrifugal pump, to calculate the. Azouz 2, 1 department mechanical engineering, faculty of engineering, lebanese international university, beirut, lebanon. That is, analyze the system to determine the pump head required as a function of flow rate through the pump this will form the system line. Centrifugal pumps are part of the rotodynamic class of pumps. Index introduction page 1 chapteri,relationbetweenperipheralvelocity andhead 2 chapterii,design oct 26, 2009 stationary components of the centrifugal pump are the following. Fluid mechanics centrifugal pump performance experiment 1. Experiment of a centrifugal pump during changing speed operation. Apr 19, 2009 this is a very simple pump to build, so most low pressure pumps such as vacuum cleaner pumps, washing machine pumps etc work on this principle.
One of the oldest and most familiar designs is the. Parametric study and design optimization of centrifugal pump. In this technique, an ultrashort laser pulse is split into two portions. Pdf laboratory report centrifugal pump anh phuong le. Pdf performance analysis of an experimental centrifugal pump. To create head, power and efficiency characteristic curves for a centrifugal. Sep 10, 20 performance test centrifugal pump lab experiment. Characteristics of single pump and pumps in series and. A comparative study on centrifugal pump designs and two. Efficiency of the centrifugal pumplab report free download as word doc.
Centrifugal pump project engineering fluid mechanics. The liquid is carried in the pockets formed between the gear teeth and the housing as the two gears rotate. First of all, the complete characteristics head, power, and efficiency were measured experimentally using a specific test loop. Vacuum pumps that require oil can be stored with the oil in the pump, but the oil should be changed each year. Measure the pump outlet pressure and flow rate through the pump. Eric ej969674 centrifugal pump experiment for chemical. Pump 2 off pump 1 on b in the software, on the mimic diagram, set the mode to single by selecting the appropriate radio button the software will on the. The experiment is carried out on a hilton heat pump rig r560. The pump speed of the first pump is accurately controlled by an advanced electronic inverter within the ifd7 an essential accessory and can be varied over the full range. The numerical data obtained from a cfd study performed with the ansys cfx software and based on steady state and. Lab 8 centrifugal pump experiment method free download as pdf file. Thermal efficiency apparatus heat pump refrigerator introduction a heat pump is a heat engine run in reverse. Centrifugal pump complete lab report pump fluid dynamics.
Heat pump experiment by muhammad hisyam abu hassan on prezi. Experimental study on a centrifugal pump with an open impeller during startup period article pdf available in journal of thermal science 221 february 20 with 3,273 reads how we measure. The pump system is schematically described in figure1 the flow rate is adjusted from the discharge valve, located after the pump. The gear pump you will test in this experiment is an external gear type. Introduction in this experiment, we demonstrated the manner in which total pressure and volumetric flow rate change with different pump configurations.
Secondary objectives are to familiarize the student with the characteristics of a centrifugal pump and to introduce the student to the homologous scaling relationships. Tests on common pump sizes 6x4 and 8x6 have found the time for the water to start boiling exceeds 15 minutes, then another 15 minutes until the pressure in the pump is reaching the maximum allowable working pressure. Pdf experimental analysis of performance of centrifugal pump. Normally, when left alone, heat will flow from hot to cold. Experiment 6 fluid mechanics lab experiment 6 pumps series. Pdf experimental study on a centrifugal pump with an. Experimental study on a centrifugal pump with an open impeller during startup period.
The performance of a centrifugal pump is presented as characteristic curves in figure 10. Performance characteristics of centrifugal pump conveying soft slurry. The unit is provided with a digital electric meter to determine the power consumption of the motor compressor unit in watts, pressure gauges, thermocouples with a. The hydraulic properties of a pump can be described by some characteristics. Dppumps can provide a serie of certificates to proof the compliance of the product range of vertical and horizontal multistage centrifugal pumps and installations. It is an air tight passage surrounding the impeller. It is designed in such a way that the kinetic energy of the water discharged at the outlet of the impeller is converted into pressure energy before the water leaves the casing and enters the delivery pipe. We made use of the armfield fm51 series and parallel demonstration unit to run this experiment for a single pump, series and parallel configuration of two pumps, and compared our values for their respective headdischarge characteristics which. The performance charts show that the maximum possible efficiency of the pump is. The performance charts show that the maximum possible efficiency of the pump is less than 45% and the best. Detection of the flow state for a centrifugal pump based on. California state polytechnic university, pomona mechanical engineering department memorandum to. Fluid lab experiment using a hydraulic bench and centrifugal pump.
No name of experiment page no 1 calibration of venturimeter 1 2 calibration of orificemeter 5 3 determination of friction for a given pipe line 8 4 verification of bernoullis theorem 12 5 impact of jet on vanes 16 6 performance test on pelton wheel 20. The rig comprises an integrated compressormotor unit, evaporator, condenser and a thermostatic throttling valve. Fluid mechanics centrifugal pump performance experiment. Several pioneering relevant studies on the basic theory, numerical simulation and experiment of how gasentrainment affects pump performance. But a heat pump does work to pump heat from the cold reservoir to the hot reservoir. In the world of hydraulics, the most preferred pumping devices are centrifugal pumps.
The nidaq max is being put to analog input in voltage for all of the inputs. Manufacturers data for this pump is contained in figures 7. The size information indicates a 112 inch outlet pipe and a 2 inch inlet pipe with a nominal maximum impeller diameter of 6 inches. This experiential learning experience is encouraging for the continued use of the centrifugal pump experiment in the unit operations lab. The inverter also calculates the torque produced at the motor drive shaft, allowing the power used by the pump to be derived.
In this experiment centrifugal pump is used domak slg1 1 hp. Green paper centrifugal pump explosions keto pumps. Certificates and test reports dpv pumps and booster systems. Set the pump speed at a high level and repeat the experiment. Experiment is simple all equipment and instruments can be obtained in short time e. Another purpose of the lab is to check pump scaling laws. The influence of viscosity on the performance of centrifugal pumps has not received up to the present, the systematic atten tion of the pump engineers which this problem deserves in view of the ever increasing use of the centrifugal pump for the trans port of viscous liquids.