Structural Specifications:
Diagram in the front panel with similar distribution to the elements in the real unit.
Screws, nuts, plates and all the metallic elements in stainless steel.
Quick connections for adaptation to feed hydraulics source.
Stainless structure.
A small-scale accessory to introduce students to the principles of radial heat conduction, and to allow the conductivity of a solid brass disk to be measured
Thermally insulated to minimize errors due to heat loss.
Includes an electronic proportioning solenoid valve to control the cooling water flow rate, a pressure regulator and a water flowmeter.
Comprises a brass disk with a heater at the centre and a cooling water tube attached to the periphery.
Includes a water pressure regulator and a manually operated valve to control the flow rate.
Water flow rate variable up to 1.5 litres/ minute.
Conduction disk is 110mm diameter and 3.2mm thick
Six thermocouples measure the temperature gradient between the heated centre and the cooled periphery of the disk.
Heater power variable up to 100 Watts.
The electric heater and thermocouples connect to sockets on the Heat Transfer Experiments Base Unit, which 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. This experiment has a solid brass disc with an electric heater at its centre and a circular cross section cooling tube around its circumference. 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. It mounts on a base plate with a clear schematic of the experiment layout.
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All components are cut away:
Injection timing device
Distributor plunger
Pump timing case
Cam ring
Vane-type pump
Solenoid valve
The following functions can be demonstrated:
Incremental angle / time recording,
Distribution
Fuel feed
Injectiontiming.
Operation ofthe high-pressure piston
The return flow throttling valve
The shut-off valve
The solenoid valve.
Electric fan
Distributor plunger
Vane pump
Injection phase
Electronic control unit, etc.
mm/inch
Max.circular saw diameter: 350/14
Max.depth of cut:v 90/3 1/2
Max.crosscut capacity: 550/21 1/2
Work table size: 890x 1145/35"x45
Power required hp/rpm: 3/2800
Radial Vice accessory makes it easy to put into the slot in the winding stators for the construction of a motor. Radial Vice to be fixed to the bench for holding stators with maximum diameter 320 mm.
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The heat and light sources, instruments, filters and plates are mounted on an aluminium track with graduated scale, which is designed to stand on the benchtop and connect to the Heat Transfer Service Unit without the need for tools.
A heat source with radiometer and a light source with light meter are used where appropriate to demonstrate the principles.
A small-scale accessory designed to introduce students to the basic laws of radiant heat transfer and radiant heat exchange.
The light source consists of a 40 Watt light bulb (operating at 24V DC maximum) mounted inside a housing with a glass diffuser.
The heat source consists of a flat circular plate 100mm in diameter which incorporates a 216 Watt electric heating element (operating at at 24V DC maximum).
A comprehensive instruction manual is supplied.
The heating element contained within the test vessel is an electrical resistance element whose input power is controlled by a potentiometer. The self-contained vacuum pump fitted to the equipment caters for vacuum conditions down to less than 0.1 mbar, and there is provision for an external pressure source input to be used to allow investigations up to 2 bar absolute. A Bourdon tube gauge mounted on the unit measures pressure from +1 bar to -1 bar and to cater for the high vacuum conditions a McLeod gauge, also panel mounted, covers the range 0 to 200 mbar absolute. A temperature indicator monitors the temperature at each thermocouple, one measuring ambient and one on the heating element.
Experimental Capability:
A determination of the natural convection heat transfer coefficient at different pressures.
An investigation of the effects of orientation of the heat source on the convection heat transfer coefficient.
Demonstration of the Stefan Boltzman law of radiation and determination of the constant for differing ambient conditions.
An investigation of natural convection for different gases, introducing the Prandtl, Grashof and Nusselt dimensionless groups.
A study of the concept and parameters of emissivity.
A radiation shield may be raised or lowered over the centrally mounted thermocouples to investigate the effects of shielding.
A small scale bench top accessory designed to experimentally investigate how measured temperatures can be influenced by the effects of radiation, temperature sensor design and surface finish.
The circular duct is mounted on the discharge from a centrifugal fan. Air from the fan is blown through the duct past the temperature sensors at a controlled velocity of between 0 and 8m/s. The air velocity is measured by an in duct anemometer.
An additional temperature sensor records the temperature of the inside of the heated duct adjacent to the centrally mounted thermocouples.
Three temperature sensors of different form and surface finish are mounted centrally in a circular stainless steel duct that is surrounded locally by an electrical heater.
Trainer on heating systems and plumbing
2 water connections for boiler DN 15
2 cooling water connections DN 15
4 radiators with thermostatic valve, air bleed and adjustable lock shield valve
Water connections made using quick-release couplings
5 rota meters.
The selection of components is idealfor basic training. Best used to get to know the basic circuits of a motor vehicle infotainment. The radio and navigation system panel isequipped with OEM components from the car.
Components:
1 x Car Rear View Camera with Night Vision
1 x Fully automatic 12V motor antenna
1 x GPS receiver with long cable
1 x Multimedia Navigation car radio with a 18cm / 7 inch touch screen with DVD / CD-ROM drive, USB port, Micro SD,connectors for steering wheel remote control
2 x Coaxial speaker 3-way
1 x Front panel switch for parking brake
1 x Ignition switch with three switchpositions.
Antenna connection and status LED's
Connections:
All components can be wired to a total of 37connector sockets in 4 mm safety design in different colours and all signalscan also be measured accordingly. The connections are labeled.
The utility model is used for sampling water samples in water quality or water plankton for environmental protection and other relevant departments.
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A unit designed to obtain catchment rainfall and runoff values as functions of time.
A motor driven traversing vessel with seventeen compartments is moved by timer beneath the outlet at a preselected rate to collect the runoff and provide an immediate display of the hydrograph.
Comprising a bench- or floor-standing tank with two overhead square pattern spray nozzles supplying water via a flow control valve, flow meter and solenoid valve.
The flow range is 0.4 to 4.4 litres/minute.
A comprehensive user manual is included in the supply.
The tank is 1.2m in length x 0.8m wide x 0.2m deep.
The Rainfall Simulator consists of a metal frame that supports the spray head assembly. In use, water is pumped from the holding tank via a control valve to the spray nozzle. The unit may be placed directly on the ground for field studies or used with its accessory tray for laboratory experiments. Water from the spray nozzle is interrupted by a horizontal rotating disc driven by a variable speed motor. For use in field or laboratory electrical and water supplies are required. Adjustable width apertures in the disc allow some water to pass and the remainder is recirculated via the tank.
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Fully automatic procedure with quick and accurate test results (max. errors within 5 kg./cubicmetre). Ram Rapid Analysis Machine Used for the determination of cement content in fresh concrete, coarse and fine aggregate, fly ash and GGBF slag content can also be determined. The complete test takes approx. 10 minutes. The connection to water net for approx. 80 liters each test is required.
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