• This experiment has three concentric cylinders. 
• The inner cylinder contains an electric heater. 
• The test liquid or gas forms a second, thin cylinder around the heat source. 
• The third cylinder cooled by water surrounds them both to make a heat sink. 
• Assembly is mounted on a base plate with a clear schematic of the experiment layout. 
• Heat passes by conduction from the heat source, through the test liquid or gas, to the heat sink. 
• Thermocouples measure the temperature on the inside and outside edges of the cylinder of test liquid or gas. 

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• This experiment has a thin solid bar with an electric heater at one end. 
• It mounts on a base plate with a clear schematic of the experiment layout. 
• The bar has a matt black coating for a consistent and predictable emissivity value. 
• Thermocouples measure the temperature along the surface of the bar at equally spaced intervals. 
• Students use initial test results to predict the temperatures and heat flow along the bar.
• The electric heater and thermocouples connect to sockets on the Heat Transfer Experiments Base Unit.
• Heat conducts along the bar and transfers to the local surroundings by natural convection and radiation. 

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• This experiment has a solid brass disc with an electric heater (heat source) at its centre and a circular crosssection cooling tube (heat sink) around its circumference. 
• It mounts on a base plate with a clear schematic of the experiment layout. 
• The electric heater and thermocouples connect to sockets on the Heat Transfer Experiments Base Unit.
• At equally spaced radii on the disc, seven thermocouples measure the temperature as the heat conducts radially outwards from the heater. 
• Insulation around the disc reduces heat loss by convection and radiation, so that the results should match the theory for simple radial conduction only.
• Also supplies the cold water feed and drain for the heat sink Students turn on the cooling water flow and adjust the heater power until the experiment reaches equilibrium. 

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• The Base Unit is the core of the range. 
• The Base Unit’s water system connects to a suitable cold water supply and drain.
• It also includes sockets for the thermocouples built into each optional experiment.  
• It includes a hand-operated valve to help give a controllable water flow and a simple return pipe, both colour-coded. 
• The water connections to the optional experiments are self-sealing quick connectors – for safety and simplicity. 
• Clear, multi-line digital displays on the Base Unit show the temperatures and heater power of each experiment. 
• A spare area to the right of the Base Unit frame allows you to fit the optional VDAS-F hardware.
• It provides cold water and heater power to the optional experiments and all the instruments needed to measure their performance.  
• The Base Unit provides a variable and measured electrical current to the heater in each experiment and works with a safety switch to stop the heater from becoming too hot. 
• Each optional experiment is on a bedplate that has a clear schematic diagram showing the connections and measuring point positions.

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• The bench-mounting equipment includes a back plate that holds a low-pressure vessel. 
• A thermocouple measures the temperature of the heater surface for the controller. 
• Two thermocouples measure the temperature of the air in the vessel. 
• A pressure transducer measures the pressure of the heated air in the vessel. 
• A digital display shows the absolute pressure, both temperatures and their average value. 
• Students set the controller for the range of temperatures needed during the experiment.
• The vessel holds a fixed volume of air surrounded by an insulated heater, controlled by an electronic temperature controller.  
• They then record the changes in pressure as the temperature increases and plot the results to prove Gay-Lussac’s Law.
• A hand-operated valve at the bottom of the vessel allows students to normalize the air in the vessel to ambient conditions. 
• The equipment uses normal clean dry air, as it behaves as an ideal gas over the range of pressures used in this equipment.  

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• The bench-mounting equipment includes a back plate that holds two clear-walled cylinders containing oil.
• This piston compresses or decompresses a trapped column of air in the test cylinder. 
• A digital indicator measures the change in height of the trapped air column. 
• A mechanical pressure gauge measures the pressure of the trapped air. 
• When multiplied by the cross-sectional area of the column, this gives the change in volume. 
• They also help to demonstrate the change in air temperature during demonstrations. 
• A thermocouple and digital display measure the temperature of the trapped air to make sure that students maintain a constant air temperature during tests. 
• Students use hand-operated pumps to increase or decrease the pressure in the left-hand cylinderwhich moves a ‘liquid piston’ of oil in the righthand cylinder. 
• The equipment uses normal, clean, dry air, as it behaves as an ideal gas over the range of pressures used in this equipment.  

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• A variable slide valve controls the air flow.
• These enable students to measure the static pressure difference across the rods.  
• The copper element is of known thermal capacity and includes a built-in thermocouple. 
• The equipment allows students to quickly assess heat transfer rates by forced convection. 
• They monitor the rate of cooling of a body of known thermal capacity in an air flow.  
• It is a horizontal wind tunnel with a contraction cone, a working section, a diffuser, a constant speed fan, and an exhaust with silencer. 
• A second thermocouple at the inlet to the wind tunnel measures the temperature of air entering the heat exchanger.
• Pitot traverse can measure air velocity at any vertical point in the working section, either before or after the rods. 
• The working section includes a series of rods arranged in a matrix and at right-angles to the direction of air flow. To do experiments, students can remove any one of these rods and replace it with a cylindrical copper element.
• The base of the working section includes two static pressure tappings: one before the rods and one afterwards. 

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Feature
An educational unit for understanding the components of the Electric Forkliftelectric system and training.
Effective to educate the troubleshooting and inspection theory, training.
Is the best model to see operation state and location of components by making parts which aren't seen at an actual one open.

Specification
Electrical circuit device of left-seat type Electric Forklift
Composition : Battery, operating lever, light system, horn, hydraulic lever, instrument panel, starter motor, battery connector, relay,
digital meters, etc
Voltage, current measurement of driven rotor and hydraulic rotor during operation
Weight: approx. 350kg
Size: approx. 2,000 X 600 X 1,700 mm

Training Contents
Measuring the input/output data in each component

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