Flow measurement compliance objectives the current npdes program depends heavily on the permittees submittal of self monitoring data. Describes flow measurement using several kinds of secondary devices. In the last two lectures we have been looking at the measurement of flow and we will. Mukhopadhyay, department of electrical engineering, iit kharagpur. Nptel syllabus advanced hydraulics web course course outline this course introduces the fundamental concepts, advanced principles and application of hydraulic analysis and design to. He has more than 35 years of experience and has written over 10 books and 250 articles about flow measurement, instrumentation and process control. Introduction to fluid machines and compressible flow. The parameters of interest for incompressible flow are the fluid viscosity, pressuretemperature, fluid velocity and its flow rate. The parameters of interest for incompressible flow are the fluid viscosity, pressure temperature, fluid velocity and its flow rate.
Fm 308 flow measurement by venturi and orifice meter. Sarkar department of chemical engineering,iit kharagpur. The common types of flowmeters with industrial applications are listed below. Flow measurement study notes for mechanical engineering. Introduction in the physical world, mechanical engineers are frequently required to monitor or. So we look at the principle of operation variable area flow meters. Flow measurement is the quantification of bulk fluid movement. Radar level transmitters in applications requiring noncontact measurement of liquid levels, the affordable lvrd500 radar transmitter is the logical extension of ultrasonic sensors. Square root extraction incorrectly used for flow measurement with dp sensing. S bharadwaj reddy december 31, 2016 august 14, 2019. Keller c o o p e r at i v e r e s e a r c h c e n t. For given conditions, it may be evaluated using various empirical or.
And this determination of fluid flow velocity to measure the flow rate by a pitot tube is based on the concept of static and stagnation pressures. Totalization flowmeter calibration measurement of flowmeter performance. Mass flow rate is the ideal measurement value because it is independent of pressure and temperature, although volume flow rate is usually technically more convenient to measure and, therefore, is preferred. A power flow analysis method may take a long time and therefore prevent achieving an accurate result to a power flow solution because of continuous changes in power. Analysis of the load flow problem in power system planning. Che241 lab report flowmeter measurement apparatus fm101 2015. Void fraction measurement a va a capacitance measurement b optical characterization 2. Flow measurement is the chapter in fluid mechanics which deals with the application of bernoulli equation applicable to many situations, not just the pipe flow. The section where flow measurement is made does not have to be at exactly the same place as either the monitoring station or the water level indicator provided that there is no significant inflow or. Optical techniques laser doppler single phase flows two phase flows 1. Obstruction or head type flowmeters are of two types. So, this lecture will be actually includes the flow measuring devices like calorimetric flow meter, vortex flow meter, electromagnetic flow meter, ultrasonic doppler.
To avoid confusion, the terms flow and velocity will be used in this text. To find the coefficient of discharge for venturi meter. In our previous lecture we have talked about orifice meter and venturi meter today we will talk about flow nozzle dull flow tube and pitot tube. Lecture series on industrial automation and control by prof. Fm 308 flow measurement by venturi and orifice meter objectives. Basically, what we do in the variable area flow meter is to deliberately create a change in the. This will be lecture number 34 on the series of mechanical measurements. Covers principles of fluid flow and how primary devices affect fluid flow. Orifice meter, venturimeter, pitot tube fall under the first. Measurement of volume and mass flow rate of fluid nptel. Find materials for this course in the pages linked along the left. Flow measurement and instrumentation journal elsevier.
Nptel provides elearning through online web and video courses various streams. Clean or dirty wet or dry hazardouscorrosive or safe single or multi phase laminar of turbulent varying. Introduction to dimensions and units physical properties of. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. This pitot tube measures the fluid flow by measuring the fluid velocity the local velocities and then from the velocity they determines the fluid flow rate. Mechanical measurements and metrology nptel online. To find the coefficient of discharge for orifice meter. And we have discussed the flow measurement systems of venturi meter, pitot tube, orifice meter and also where by which how we can measure the flow rate and. The online course goes on to discuss rotameters and other. Open channel flow rate measurement is usually done by measuring a change in water depth.
The calculation of streamflow from measurements of stage technical report report 016 september 2001 john d. A weir is a calibrated instrument used to measure the flow. Measuring open channel flow rates with a weir or a flume. 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. Fluid mechanics pdf notes fm pdf notes smartzworld. Fluid mechanics study notes handwritten engineering. Sontek manufactures acoustic doppler instrumentation for water velocity measurement flow and current monitoring in oceans, rivers, lakes, harbors, canals, estuaries, industrial pipes and. Pdf che241 lab report flowmeter measurement apparatus. What do you mean by secondary flow and spiral flow. Common types are the sharp crested weir including vnotch weir.
Measurement of flow rates in open channels is difficult because of nonuniform channel dimensions and variations in velocities across the channel. Types of fluid flow meters an introduction to different types of fluid flowmeters orifices, venturies, nozzles, rotameters, pitot tubes, calorimetrics, turbine, vortex, electromagnetic, doppler, ultrasonic. Deming advocated that the sqc tools be known by everybody in the. Flow measurement and instrumentation is dedicated to disseminating the latest research results on all aspects of flow measurement, in both closed conduits and open channels. So, today we will talk about velocity measurement time mass flow measurement time positive displacement time. Nptel mechanical engineering forming joint initiative of iits and iisc funded by mhrd page 4 of 10 1. Important variable in plant operation measured primarily for determining the amount of fluid flowing fluid types.
1460 174 1022 930 842 1356 607 336 245 569 1160 1314 657 321 1237 113 653 1284 1197 304 278 1331 1034 587 718 1168 85 1533 679 906 35 237 369 1081 123 670 863 1104 302 72 1044 803 74 1015 148 936 1127 263 216