To find the coefficient of discharge for venturi meter. Then take the electrode out of the storage solution and rinse it with tap water. Janna 1 abstract an inexpensive yet portable device for calibrating four different flow meters in the undergraduate fluid mechanics laboratory was designed and constructed. To determine the coefficient of discharge c d, velocity c v, and contraction c c of various types of orifices 2. The metre bridge physics homework help, physics assignments. Newton meter experiment worksheet teaching resources. Computational fluid dynamics cfd analyses were carried out in. Differential pressure type flow meters head flow meters measure flow rate by introducing a constriction in the flow. One single phase energy meter, one single phase load, stop watch and connecting wires. Procedure for calibration and testing of singlephase energy meter.
Pdf experimental investigation of the installation effects. Orifice meter flow measurement fluid mechanics scribd. Bsen 3310 lab 2calibration of orifice flow meter and venturi. To determine the coefficient of discharge of the orifice meter 1. Fm 308 flow measurement by venturi and orifice meter. Materials and methods a manometer figure 1, an orifice flow meter figure 2, and a venturi flow meter figure 3 were used to measure the flow rate and pressure change of. Alternatives to the glass electrode are available but are seldom used as they have other drawbacks, e. Calibration of venturimeter and orificemeter free download as pdf file.
Differential pressure type flow meters head flow metersmeasure flow rate by introducing a constriction in the flow. Che241 lab report flowmeter measurement apparatus fm101 2015. Position the water flow measuring apparatus on the horizontal operating surface of the hydraulics bench 2. Since the meter must be connected to the circuit to make a measurement, the circuit is changed by the resistance of the meter.
Experimental investigation of the installation effects on the venturi flow meter performance conference paper pdf available june 2000 with 2,477 reads how we measure reads. Jan 11, 2017 calibration of venturi and orifice meters 1. Two disadvantages of glass electrodes are that measuring solutions can damage the glass membrane and that the glass membrane is easily broken. Touch the meter probes together and check that the meter reads zero. The apparatus contains a rotameter, a turbinetype meter, a.
Calibration of venturi and orifice meters hirizza junko m. Dc measurements and meter loading introduction meters used to measure voltage or current have an internal resistance. Orifice meter maintenance consists of periodic inspection as indicated above, cleaning primary elements. The flow measuring apparatus is used to familiarize the students with typical methods of flow measurement of an incompressible fluid and, at the same time demonstrate applications of the bernoullis equation. The magtube flow meter is a device proposed for measuring the flow rate of water through. Precautions when using a metre bridge 1 the value of the known resistance s should be chosen so that the balance point comes somewhere on the middle third of the wire, i. Venturi meter and orifice plate effects are two main and very important phenomenas in fuild mechanics sub field of mechanical engineering. Calibration and testing of singlephase energy meter. Orificemeter is a device used for measuring the rate of fluid flowing through a pipe. Design of flow measurement experiment by ahmed al yousef on prezi. Fm 308 flow measurement by venturi and orifice meter objectives. Pdf numerical methodology for orifice meter calibration.
The design of a fluid meters apparatus for the fluid mechanics laboratory william s. The experiment of flow meter measurement is conducted to introduce the students to the three different types of commonly used flow meter in the industry. Meter bridge study material for iit jee askiitians. Aug 31, 2016 to run this test smoothly, it needs a ph meter, beakers, buffer solution with ph 4 and ph 10, tap water and soft tissues. In this lab, we will be working on the latter parts of the scientific method in which you design an experiment to test your hypothesis. Pdf che241 lab report flowmeter measurement apparatus. The volumetric flowrate, q, of a given fluid through an orifice nozzle flow meter is proportional to the square root of the pressure drop across the meter. Pdf orifice meters are mechanical devices used to measure gases and liquids flows. Notice that the meter display shows off the scale usually blank except for a 1 on the left. Experiment 1 calibration of single phase energy meter aim.
Meter bridge is also known as the slide wire bridge. Note down the reading of two meters in a given period of time, say 2 minutes. That is, the meter will automatically select the most appropriate range for making the measurement. It consists of a wire whose length is one meter and has uniform cross sectional area. Fluid mechanics lab me 216 f list of experiments 1. There are many different meters used to measure fluid flow. Dont worry, this is not a fault, it is correct the resistance of air is very high.
Dynamics of fluid flow orificemeter watch more videos at. Digital multimeters typically have a lcd or led display and in many cases are autoranging. However, before the utilization of any calibration orifice meters, they demand. To start this experiment, first need to switch on the ph meter and wait about half an hour for the electronics to be heated. Follow this link to read online and download answer rip o meter lab pdf from our online library. Students measure flow using a venturi meter, an orifice plate meter and a rotameter. Scribd is the worlds largest social reading and publishing site. For use by all kinds of engineering students, the flow meter calibration apparatus compares and shows the accuracy and use of fundamental flow meters. Pdf flow through a venturi meter orifice rotameter. The leaf ripo meter experimental design introduction. Switch the pump on, allow the water to enter the flow measurement instruments,which are connected to manometers tubes.
To determine the minor head loss coefficient for different pipe fittings. The major objective of this experiment was to construct, test and model a simple, inexpensive venturi meter. Thus, qk h where is the meter calibration constant and is the manometer reading that. Most meter movements electrostatic movements excepted are quite sensitive, giving fullscale indication at only a small fraction of a volt or an amp. Orifice meter are depending on bernoullis equation. Department of mechanical engineering calibration of an orifice meter objective. Repeat the whole experiment for the flow through orifice meter. How to be productive at home from a remote work veteran. Tes global ltd is registered in england company no 02017289 with its registered office at 26 red lion square london wc1r 4hq. Give the connections as per the circuit diagram above. Energy meter is an instrument which measures electrical energy.
A simple, inexpensive venturi experiment applying the. Flow through venturi meter background and theory introduction flow meters are used in the industry to measure the volumetric flow rate of fluids. The design of a fluid meters apparatus for the fluid. The bridge has two metallic strips which is in reverted l shape on either side of the wire. You will be using a very simple homemade experimental apparatus to test your hypotheses about plant leaves. Set the meter to a resistance range greater than you expect the resistance to be. The three flow meters involved in the experiment are orifice flow meter, magnetic flow meter, and coriolis flow meter. More specifically, this simple venturi meter, constructed from materials available at a local hardwareauto parts store, was characterized by determining the venturi coefficient and the permanent pressure loss. Yamamoto department of chemical engineering, college of engineering and architecture, cebu institute of technology university n. Periodically the master meter is returned to a standards lab or to the manufacturer for recertification. Enlargement, thenventuri meter, orifice plate, elbow, and finally rotameter.
Comparison of experimental, theoretical and simulation result for. The nozzle flow meter included or any of the optional flow meters quickly and easily fit into place between the adaptors in the base unit of the apparatus. An orifice meter consists of a flat plate that has a sharpedged hole accurately machined in it and placed concentrically in a pipe as shown in figure 12. To study the construction and working of single phase energy meter and to find out energy consumed in 30 minutes. The task of the meter designer is to take a given meter movement and design the necessary external circuitry for fullscale indication at some specified amount of voltage or current. The measured alteration is then related to the flow.
It is bad practice to have a balance point near one end of the wire. Energy losses through venturi, orifice, and rotameter. The objectives of this experiment were to gain knowledge on pressure and flow measuring devices, and to calibrate an orifice flow meter and a venturi meter. Experiment study on pressure drop of a multistage letdown orifice tube. Oct 29, 20 orifice meter is another simple device used for the measuring the discharge through pipes, orifice meter also works on the same principle as that of venturi meter i.
Measurement of forces in physics physics demonstration videos. In short, the apparatus allows the following experiment to be carried out. To find the coefficient of discharge for orifice meter. C to the pressure coil circuit by means of phase shifting transformer.
Finally, the different types of wears and discharge below a floodgate and design of a floodgate are presented in experiment no. Venturi meter and orifice meter are the commonly used flow meters for measuring massvolumetric flow rate or velocity of the flowing fluid. In this post the effect of venturi meter and orifice plate on the fluid flow will be disciussed and complete work will be presented in the form of report. As liquid flows through the pipe, the flow suddenly contracts as it approaches the orifice and then suddenly expands after the orifice back to the full pipe diameter. Energy losses through venturi, orifice, and rotameter flowmeters. To calibrate the energy meter using direct loading. Calibration and determination ph value using ph meter. Tecquipments flow measurement apparatus shows the typical methods of measuring the flow of an essentially incompressible fluid water.
772 1244 1180 839 1614 266 197 441 518 906 1303 1542 1423 1 372 1407 570 1311 613 1069 627 1268 586 1137 397 1139 74 594 872 203 901 558 1563 952 310 1349 907 1274 1332 695 727 934 1371 691 419