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Leading Manufacturer, Supplier & Retailer of Advanced Conduction Unit, Boundary Layer Flow, Centrifugal Compressor Demonstrator, Centrifugal Pump Demonstrator and Radial-Flow Reaction Turbine Demonstrator.
Advanced Conduction Unit Technical Description In this benchtop unit, a metal test bar is clamped between a heater and a Peltier element as the cooler. The complete arrangement is under an evacuated bell jar. In this way errors due to convection can be ignored and all the heat must flow through the test bar. The thermal conductivity can be calculated from the temperature difference between the hot and cold end and the heater power. The housing contains the vacuum pump and the digital displays.
Boundary Layer Flow Technical Description The experimental set-up is placed in the Air Flow Studies unit with only a few actions. The model consists of a transparent tube in which the flat plate is placed. Above the plate, a vertically adjustable Pitot tube is fitted using which the flow speeds at the plate can be measured. The Pitot tube can be fitted on a holder in 3 positions along the plate. The Pitot tube is connected to the manometer belonging to the studies unit.
The Centrifugal Compressor is part of an equipment series for the investigation of fluid-flow machines. The arrangement, fitted to a sturdy base plate, contains the compressor with intake and delivery tube, as well as transducers for air volumetric flow rate, temperature, fan speed, intake and delivery pressure. The voltage signals sent by the transducers are digitised with the data acquisition card (available as accessory). The associated software permits further processing on a PC. The following accessories are required for operation: an Interface Module , Data Acquisition Card with Software and Set of Connecting Cables . This layout makes it possible to record measured values during the experiments, and process and store this data on a PC. A Power Meter facilitates the determination of efficiencies.
The centrifugal pump demonstration unit / PC is designed for instructional and experimental use at vocational schools, special colleges and universities. The model is part of a series of units that permit experiments to fluid-flow machines. The unit is set up on a stable base plate and includes a pump, tank, all required fittings and recording devices for flow rate, temperature, pump speed, intake and conveying pressure. The signals can be digitised and transferred to a PC via a data acquisition card. The following accessories are required for operation: interface module , data acquisition card with software and set of connecting cable . The power meter is a practical way to expand the unit, as it enables the user to determine the efficiency rate of the pump.
Technical Description Reaction turbine demonstration unit, designed for operation in conjunction with the Turbine Service Unit. The turbine unit is placed on the Turbine Service Unit and supplied with water by the service unit. The turbine housing is made of Plexiglass so that the emerging water jet that drives rotor using the reaction principle can be observed unhindered. A braking device is fitted to the impeller shaft of the turbine, the braking device is in the form of a band brake using which the load and moment on the turbine shaft can be measured with an electronic dynamometer. A proximity switch measures the rotational speed of the turbine. The following accessories are required for operation: an Interface Module , Data Acquisition Card with Software and Connecting Cables . Using these accessories it is possible to take measurements, and process and store the measurements on a PC.
The table unit is part of a series designed for training in refrigeration engineering. The unit addresses electrical faults as they can occur in the operation of a commonly available refrigerant compressor. The faults are simulated using pushbuttons on the front panel of the unit. Other components as, a switch box with the starting relay, running capacitor, starting capacitor and motor protection circuit breaker are also arranged on the front panel. The measured points in the electrical circuit are accessed using laboratory sockets. A circuit diagram printed on the front panel provides information on the circuit. A multimeter is included for fault-finding.
Gear Pump Demonstrator Technical Description The demonstration unit enables the operating behaviour of a gear pump to be investigated. These pumps are particularly suitable for the generation of medium-high pressures at low flow rates. In practice this type of pump is predominantly used in oil-based hydraulics. The demonstration model consists of a system of pipes made of steel and a tank made of Plexiglass. Electronic sensors provide the flow rate, relevant pressures, the temperature of the pumped medium and the rotational speed of the drive motor as measured values. The pump output can be changed using a regulator valve. The following accessories are required for operation: an Interface Module , Data Acquisition Card with Software and Set of Connecting Cables . Using these accessories it is possible to take measurements, and process and store the measurements in a PC.
Flowmeter Trainer Technical Description The test stand is used for familiarization with a wide range of flowmeters. These devices are available as accessories and are easily installed in the mounting position foreseen. A vertical and a horizontal measuring station are provided on the test stand. The flowmeters are supplied with water by the test stand. As the test stand has a closed water circuit with supply tank and pump, only a mains electricity supply is required to operate the test stand. The pipework consists of corrosion-resistant material; 2 tube manometers in the form of a differential pressure gauge are provided for determining pressure losses. To be able to check the function and precision of the flowmeters under investigation, a reference flowmeter is provided.
Lecturers' Demonstration Kit Features Cost effective teaching aid Enables seven models to be built Each model self contained Excellent introduction to the theory for redundant structures Three year warranty Description See the individual experiments. All the parts to make the models are provided and the set of weights needed for the experiments is included. A complete set of Lecturer's Instruction Manuals and students laboratory sheets is supplied. There is also a Manual explaining the construction of each of the seven models.
Maxwell-Betti Theorems Features Self-contained model Immediate analogue solution Effective teaching aid Demonstrates the complete reciprocal equality of forces and displacements For lecture or laboratory Three year warranty Range of Experiments Measurement of deflections and rotations for alternative sets of loads and moments at reciprocal locations on a beam Description The model is built on a pressed steel base with plastic piers that support a single span flexible steel beam on swivelling bearings which can accommodate horizontal movement while enabling external moments to be applied and measured. An inserted locking pin makes a fixed end. Rotation of the beam at the support is shown by a large coloured pointer moving across a dual scale, the coarse one being readily seen at 10 m distance. Dual deflection scales on adjustable vertical posts enable displacements to be measured and seen at 10 m distance. The set of weights needed for the experiment is included. This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.
Muller-Breslau Internal Moment Features Self-contained model Immediate analogue solution Effective teaching aid Demonstrates how model analysis provides redundant forces For lecture or laboratory Three year warranty Range of Experiments Measurement of the redundant moment at the central support in a two span continuous beam Description The model is built on a pressed steel base with plastic piers that support a single span flexible steel beam on swivelling bearings which can accommodate horizontal movement while enabling external moments to be applied and measured. An inserted locking pin makes a fixed end. Rotation of the beam at the support is shown by a large coloured pointer moving across a dual scale, the coarse one being readily seen at 10 m distance. Dual deflection scales on adjustable vertical posts enable displacements to be measured and seen at 10 m distance. The two spans of the beam have a screw straining device for imposing a fixed rotation between the two spans. This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results
Critical Condition Of Struts
Features
Range of Experiments
A piece of material in compression is called a strut. If it is short and stubby it will fail by compressive stress, but if it is slender the failure mode is that of buckling. The load at which the strut buckles depends on the way in which the ends are restrained. Built-in ends resist buckling more than ends which are free to move. The apparatus shows how the buckling mechanism occurs, and the influence of the end restraint.
The apparatus comprises a sheet metal frame which supports four slender spring steel struts having loading platforms at their top ends. Each strut has a different end constraint so that comparisons can be instantly made in a highly visible way.
a) Both ends pinnedb) One end pinned, the other end fixedc) Both ends fixedd) Base fixed, top free
For the first three, the ends move inwards as the strut buckles. The loading platforms act through relatively friction free guide bushes.
This equipment is part of a range designed to both demonstrate and experimentally confirm basic engineering principles. Great care has been given to each item so as to provide wide experimental scope without unduly complicating or compromising the design. Each piece of apparatus is self-contained and compact. Setting up time is minimal, and all measurements are made with the simplest possible instrumentation, so that the student involvement is purely with the engineering principles being taught. A complete instruction manual is provided describing the apparatus, its application, experimental procedure and typical test results.
Series / Parallel Pump Demonstrator Technical Description The demonstration unit facilitates the measurement of pump curves in various operating modes. The unit comprises 2 identical centrifugal pumps that are connected together via a system of pipes. Shut off valves permit the pumps to be operated in series or in parallel. Electronic sensors provide relevant pressures, the temperature of the pumped medium, and the rotational speed of the drive motors are measured values. The flow rate of the pumps can be adjusted using power adjusters. The following accessories are required for operation: an Interface Module , Data Acquisition Card with Software and a Set of Connecting Cables . This layout makes it possible to record measured values during the experiments, and process and store this data on a PC. Power Meters are a practical way to expand the unit
Pipe Fitting Loss Demo Panel Technical Description The experimental arrangement is clearly laid out on a demo panel. The panel is fitted to a laboratory trolley and is thus flexible in use. Only a supply of cold water and a drain are required for operation. For the investigations on the pipes, 10 different pipe sections are provided in which measuring connections with annular chambers are incorporated. The measuring connections are connected to the corresponding measuring equipment using hoses. The pipes can be individually selected for the experiments using connecting hoses. For pressure measurements, a double manometer, manometer panel and a battery operated electronic differential pressure measuring unit are provided. The flow rate is indicated on a variable-area flowmeter. An instruction manual with detailed description of the theoretical background is supplied.
Francis Turbine Demonstration Unit / PC Technical Description The function and operating behaviour of a Francis turbine can be investigated using . A transparent housing cover allows a clear view of the running turbine. The interaction of guide vanes, water flow and runner are clearly visible. The turbine power output is regulated by adjustable guide vanes. An adjustable DC generator with current converter as braking device is used as turbine load. The unit is fitted with electronic sensors to measure turbine speed, flow rate, pressure and braking torque. The values are directly indicated on digital displays and can be transferred for further processing to a PC. The demonstration unit includes a closed water circuit. It is possible to cool the water circuit via an integrated cooling coil in the supply tank if the water temperature is above 40C
Piston Pump Demonstrator Technical Description The demonstration unit enables the pump curve of a reciprocating pump to be measured. The system consists of the pump with an electrical drive motor, the pipe system with supply tank and a container for volumetric flow measurement. Electronic sensors provide the delivery pressure and the pressure in the cylinder; a position sensor is used to determine the position of the connecting rod and thus the volumetric displacement. The pressure level in the system is maintained constant using a pressure retention valve. The pulsating pressure characteristic of the pump can be damped with an air vessel. The following accessories are required for operation: an Interface Module , Data Acquisition Card with Software and a Set of Connecting Cables . This layout makes it possible to record measured values during the experiments, and process and store this data on a PC.
Rakesh Mittal (Elab Engineering)
F-197/A, ALPHA-2 GREATER NOIDA Gautam Budh Nagar, Uttar Pradesh - 201308, India
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