• Adapted specially for education to enable effective laboratory testing and demonstrations, the engine includes an exhaust thermocouple, a half-coupling to link to the test set dynamometer and all essential hoses and fittings. 
• Removing the fuel tank also prevents unauthorised use of the equipment.
• The engine is mounted on a sturdy precision bed plate. 
• The bed plate has dowels and slots which align and locate it accurately with the dynamometer test set. 
• This minimises the time spent replacing one engine with another.
• The couplings ensure the engine can be connected and disconnected quickly and efficiently with minimum loss or spillage of fuel. 
• For convenience and safety, the fuel tank can be removed for filling or for storage in a fuel locker when

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• The main components of the Exhaust Gas Calorimeter are:
• Gas-to-water shell and multi-tube heat exchanger.
• Control valve. Turbine flow meter measures the flow rate. 
• The heat exchanger is mounted on a sturdy base plate. 
• Exhaust gases from the test engine mounted on the test set flow through the tubes. 
• A jacket of constantly flowing cooling water surrounds the tubes, and the heat content of the gases is assessed by measuring the cooling water flow rate and the inlet and outlet temperatures. 
• A hand-operated valve, which mounts on the control console of the test set, controls the flow of cooling water through the heat-exchanger jacket. 
• For safety, the heat exchanger also includes a pressure-relief valve in case insufficient cooling water is flowing. The instrumentation consists of a digital, four-channel temperature and flow display unit. 
• Thermocouples measure the temperature of gas and water at the inlet and outlet. 
• This unit mounts on the instrumentation rail of the test set console frame and allows easy and accurate display and monitoring of data. 

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• The engine has a modified cylinder head and crank. 
• The engine is mounted on a sturdy precision bed plate. 
• This minimises the time spent replacing one engine with another.  
• These can then connect to the Engine Cycle Analyser to extend the range of experiments possible. 
• The bed plate has dowels and slots which align and locate it accurately with the dynamometer test set.
• These allow use with the Cylinder Head Pressure Transducer and the Crank Angle Encoder. 

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• A self-contained, fully instrumented, educational two-shaft gas turbine. 
• A steel frame holds a gas generator, power turbine, combustion chamber, oil and fuel tanks, pumps, ancillaries and guards.
• Air passes through a calibrated nozzle and air box, into a compressor, then into the combustion chamber. 
• A pump transfers fuel from the fuel tank to spray through a special nozzle into the combustion chamber. 
• A high-energy spark ignites the air and fuel mixture, that flows to a gas generator turbine.  
• These is an instrumentation and control panel with schematic diagram. 
• The clearly labelled control panel with mimic diagram includes the instrument displays, controls and warning lights.
• The combustion chamber gives excellent combustion, low pressure loss and good flame stability over a wide range of conditions. 
• A fuel flow control valve on the instrumentation and control panel regulates the turbine speed.
• This design reduces the possibility of overspeed. 

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Made from clear acrylic with crocodile clips.
A neat and effective way of supporting foil strips when demonstrating the attraction and repulsion of current carrying conductors. 

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In use, the challenge for the pupil is to hit the rat as it emerges from the tube. It gives a dramatic demonstration of Lenz’s Law since the magnetised rat takes about 5 seconds to exit the tube.
Lenz’s Law can be demonstrated using the standard Eddy Current Tubes whereby a magnet falls through a copper tube at a slower rate than an un-magnetised weight. 
The demonstration lends itself to a fun classroom activity based on the village fete challenge of Splat the Rat. 
Two ‘rats’ are supplied, one containing strong neodymium magnets and the other just a metal weight. 
1m of copper tube and a foam-covered rounders bat completes the kit. 
Fun and dramatic demonstration of Lenz’s Law. 
Interactive and entertaining demonstration of induced currents and magnetic fields.
Weight 0.3kg. 
Dimensions: 1000 x 30 x 30mm. 

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A calibrated dial controls the separation and the force is measured by attaching standard slotted masses.
This apparatus provides a self-contained system for investigating the variation of attractive force with separation distance for a pair of high strength neodymium magnets. 
Useful for magnetic investigations. 
Aids teaching of balanced forces.

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The separation can be measured by using a direct reading ‘wedge’ gauge and the force is provided by applying standard slotted masses on the top plate. 
A simple system for investigating the force of repulsion between two high strength neodymium magnets.
Investigate magnetic repulsion and balanced forces.

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