Rockwell Hardness Tester Electronic Engineering Lab
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Workshop Brinell Hardness Testing Device
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Workshop Sheet Metal Gauge
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Double Dowelling Machine
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Bacterial Growth Incubator 5oC to 80 oC
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Water Pressure Tester Power type
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Gel Electrophoresis Kit
....tobeInstalledAtTheRiverGaugingStations-lab-815418565.jpg "Automatic Precipitation (Tipping Bucket) to be Installed At The River Gauging Stations")
Automatic Precipitation (Tipping Bucket) to be Installed At The River Gauging Stations
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Psychiatric Modular Ottomans
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Bench-Top Refrigerated Centrifuge
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UV/VIS Spectrophotometer
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Functional Distillation Column
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Mechanical stress, to which design elements are generally exposed, generates stresses in the affected component or the material. The component does not return fully to its original form after the deformation, resulting in a change of shape. If these stresses are too large, there is plastic deformation of the material in addition to the elastic, reversible deformation.
Features:
Plot loadextension diagrams.
Observe and determine the transition from elastic to plastic deformation.
Learning Objectives And Experiments:
Load on a beam with a point load
Demonstrate the invalidity of the superposition principle in the plastic region
Compare the load and relief curves
Plot a loadextension diagram and determine the nonlinear behaviour.
The Finned Tube Bundle In Cross Flow accessory includes a clear plastic plate that is designed to fit the aperture in the Cross Flow Heat Exchanger duct. An electrically heated finned active element with an integral surface thermocouple is supplied which may be inserted in place of the removable tube in the centre of each row. The plate consists of a four row finned tube bank with a removable finned tube in the centre of each row. Replacing the removable tube in each row in turn in the tube bundle allows the variation in heat transfer coefficient in a tube bundle to be investigated.
Experimental Capabilities:
Steady state determination of the mean surface heat transfer coefficient for finned tubes in the 1st , 2nd 3rd and 4th rows of a Finned Cross Flow Heat Exchanger.
Investigation of the effect of external fins on the heat transfer watt density of plain tubes in cross flow.
The Cavitation Demonstration Unit offers a clear andeasy-to-understand display of cavitation. Students create clearly visiblecavitation in a Venturi and take measurements of flow and pressure. The causes and effects of cavitation are one of the mostimportant subjects in any course on fluid mechanics. In severe cases, cavitationwill damage machines and hydraulic systems. It alsoallows students to understand the Venturi by studying upstream and throatpressures. Studentsuse theory and practical experiments to learn how to predict the onset ofcavitation. They gain practical experience of using the continuity equation and Bernoulli's equation. They use these to calculate flow and pressure, differentmethods of creating cavitation and causes of error. The apparatus is aself-contained, mobile unit. Designers and engineers must beaware of cavitation when they create a new design or installation. Cavitation Demonstration Unit is a purpose-designed teaching unit which enables efficientand effective investigations into the causes and effects of cavitation. The frame includes a handy worktop for student paperwork. It consists of a robust frame which holds a watertank (or reservoir), an electric pump, a flow-control valve, a flow meter and aVenturi.
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A steel point or hook is attached to the bottom end of the shaft and is used to locate the water surface.
A quick-release mechanism permits large changes to be rapidly accommodated, and a screw adjustment is provided for accurate final positioning.
A push button sets the display to zero at any position, so that relative movements compared with a datum can be easily measured.
The gauging unit consists of a liquid crystal electronic display, which indicates the movements of the shaft.
This gauge is easy to use and minimises potential errors resulting from reading vernier scales.
A mounting plate is clamped to a suitable support structure and a flat vertical shaft retained by the gauging unit is free to slide up and down over the water surface.
Among three-phase power supply the synchronous machines are widely used and they called so because the speed of the rotor of these machines are the same as the rotating magnetic field. They are commonly used as generators especially for large power systems, such as turbine and hydroelectric generators in the grid power supply. Because the rotor speed is proportional to the frequency of excitation,synchronous motors can be used in situations where constant speed drive is required. Since the reactive power generated by a synchronous machine can be adjusted by controlling the magnitude of the rotor field current, unloaded synchronous machines are also often installed in power systems solely for power factor correction or for control of reactive kVA flow. Their construction is almost similar to that a three-phase induction motor except the fact that the rotor is given DC supply.
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