Pdf experimental investigation of the installation effects. Procedure for calibration and testing of singlephase energy meter. To start this experiment, first need to switch on the ph meter and wait about half an hour for the electronics to be heated. To determine the coefficient of discharge c d, velocity c v, and contraction c c of various types of orifices 2. Orifice meter are depending on bernoullis equation.
Newton meter experiment worksheet teaching resources. Touch the meter probes together and check that the meter reads zero. Meter bridge is also known as the slide wire bridge. That is, the meter will automatically select the most appropriate range for making the measurement. 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. Department of mechanical engineering calibration of an orifice meter objective. Periodically the master meter is returned to a standards lab or to the manufacturer for recertification. Scribd is the worlds largest social reading and publishing site. Finally, the different types of wears and discharge below a floodgate and design of a floodgate are presented in experiment no. Enlargement, thenventuri meter, orifice plate, elbow, and finally rotameter. Bsen 3310 lab 2calibration of orifice flow meter and venturi. Give the connections as per the circuit diagram above. To find the coefficient of discharge for orifice meter.
To find the coefficient of discharge for venturi meter. 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. Switch the pump on, allow the water to enter the flow measurement instruments,which are connected to manometers tubes. To determine the coefficient of discharge of the orifice meter 1. 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. For use by all kinds of engineering students, the flow meter calibration apparatus compares and shows the accuracy and use of fundamental flow meters. It consists of a wire whose length is one meter and has uniform cross sectional area. One single phase energy meter, one single phase load, stop watch and connecting wires. Each meter works by its ability to alter a certain physical property of the flowing fluid and then allows this alteration to be measured. To study the construction and working of single phase energy meter and to find out energy consumed in 30 minutes. Calibration and determination ph value using ph meter. 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.
Differential pressure type flow meters head flow meters measure flow rate by introducing a constriction in the flow. The leaf ripo meter experimental design introduction. Dynamics of fluid flow orificemeter watch more videos at. However, before the utilization of any calibration orifice meters, they demand. Pdf che241 lab report flowmeter measurement apparatus. Set the meter to a resistance range greater than you expect the resistance to be. The design of a fluid meters apparatus for the fluid mechanics laboratory william s. Repeat the whole experiment for the flow through orifice meter. Pipe with an orifice flow meter, pump with flow control valve, manometer. Comparison of experimental, theoretical and simulation result for.
Follow this link to read online and download answer rip o meter lab pdf from our online library. Since the meter must be connected to the circuit to make a measurement, the circuit is changed by the resistance of the meter. Then take the electrode out of the storage solution and rinse it with tap water. Orifice meter maintenance consists of periodic inspection as indicated above, cleaning primary elements. You will be using a very simple homemade experimental apparatus to test your hypotheses about plant leaves. How to be productive at home from a remote work veteran. Energy losses through venturi, orifice, and rotameter. The three flow meters involved in the experiment are orifice flow meter, magnetic flow meter, and coriolis flow meter. To determine the coefficient of discharge of an orifice meter. Experiment study on pressure drop of a multistage letdown orifice tube. Yamamoto department of chemical engineering, college of engineering and architecture, cebu institute of technology university n. Fm 308 flow measurement by venturi and orifice meter objectives. Notice that the meter display shows off the scale usually blank except for a 1 on the left.
Calibration of venturimeter and orificemeter free download as pdf file. Flow through venturi meter background and theory introduction flow meters are used in the industry to measure the volumetric flow rate of fluids. Most meter movements electrostatic movements excepted are quite sensitive, giving fullscale indication at only a small fraction of a volt or an amp. Thus, qk h where is the meter calibration constant and is the manometer reading that. Calibration and testing of singlephase energy 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. Calibration of venturi and orifice meters hirizza junko m. Dont worry, this is not a fault, it is correct the resistance of air is very high. Its clear that we can translate our scales weight readings to force readings like kilogramforce same numerical value or n multiplying by 9. 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. Tes global ltd is registered in england company no 02017289 with its registered office at 26 red lion square london wc1r 4hq. Tecquipments flow measurement apparatus shows the typical methods of measuring the flow of an essentially incompressible fluid water. Orificemeter is a device used for measuring the rate of fluid flowing through a pipe. The bridge has two metallic strips which is in reverted l shape on either side of the wire.
Fluid mechanics lab me 216 f list of experiments 1. Experiment 1 calibration of single phase energy meter aim. Orifice meter flow measurement fluid mechanics scribd. 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. There are many different meters used to measure fluid flow. Jan 11, 2017 calibration of venturi and orifice meters 1.
The magtube flow meter is a device proposed for measuring the flow rate of water through. Differential pressure type flow meters head flow metersmeasure flow rate by introducing a constriction in the flow. To determine the minor head loss coefficient for different pipe fittings. Position the water flow measuring apparatus on the horizontal operating surface of the hydraulics bench 2. 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. Dc measurements and meter loading introduction meters used to measure voltage or current have an internal resistance. In short, the apparatus allows the following experiment to be carried out. Venturi meter and orifice plate effects are two main and very important phenomenas in fuild mechanics sub field of mechanical engineering.
Pdf orifice meters are mechanical devices used to measure gases and liquids flows. 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. A simple, inexpensive venturi experiment applying the. 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. Students measure flow using a venturi meter, an orifice plate meter and a rotameter. The measured alteration is then related to the flow. Aug 10, 2012 this website and its content is subject to our terms and conditions. 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.
The apparatus contains a rotameter, a turbinetype meter, a. 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. C to the pressure coil circuit by means of phase shifting transformer. Two disadvantages of glass electrodes are that measuring solutions can damage the glass membrane and that the glass membrane is easily broken. Che241 lab report flowmeter measurement apparatus fm101 2015. Note down the reading of two meters in a given period of time, say 2 minutes. It is bad practice to have a balance point near one end of the wire. Pdf numerical methodology for orifice meter calibration. There are three possible pressure tap locations for an orifice meter as listed in table 12. Cebu city, 6000 philippines this experiment aims to be calibrate both the venture apparatus and the orifice apparatus. Fm 308 flow measurement by venturi and orifice meter. The major objective of this experiment was to construct, test and model a simple, inexpensive venturi meter. 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.
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. Venturi meter and orifice meter are the commonly used flow meters for measuring massvolumetric flow rate or velocity of the flowing fluid. Measurement of forces in physics physics demonstration videos. The experiment is designed to study uniform water flow over a range of flow rates. 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. Energy losses through venturi, orifice, and rotameter flowmeters. Alternatives to the glass electrode are available but are seldom used as they have other drawbacks, e. The design of a fluid meters apparatus for the fluid. Janna 1 abstract an inexpensive yet portable device for calibrating four different flow meters in the undergraduate fluid mechanics laboratory was designed and constructed. Computational fluid dynamics cfd analyses were carried out in. Pdf flow through a venturi meter orifice rotameter. Design of flow measurement experiment by ahmed al yousef on prezi.
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