The engine consists of a large vertical cylinder with heater to generate hot gas. Twin cylinders above the hot gas cylinder generate power. The hot gas cylinder head can be cooled by water from a cooling system. The Stirling Cycle Hot Air Engine Twin Power unit is for demonstration of stirling cycle hot air engine principles. All cylinders are attached to a common shaft. Heater to the hot gas cylinder can be varied. The advantage of this design is the ability to bring the engine to operating condition in a short time. Instruments are provided for measurement of input power and output power.
Experiments:
Output and efficiency vs speed for a given input power.
Torque vs speed for a given input power.
ffect of hot gas cylinder head cooling on efficiency.
As all the parts of the injector are multiple laser-welded, it is not possible tocutaway these parts any further. The benefitof these injectors is that they switch extremely quickly and thus injectminimum quantities of fuel, which makes multiple injection (3) possible.
The followingcan be seen:
Electrical connections for voltage supply to the piezo-actor module
Cutaway injector housing and interior housing
Teflon ringfor sealing in the cylinder head
Fuel flow (high pressure)
O-ring toseal the leakage line
Nozzle module
Coupler module.
The interior mechanical structure and function of pliers disc brake is clearly understood under its demonstration and operation. Pliers Disc Brake Demonstrator is perfect teaching equipment for colleges, secondary vocational and technical schools, car driving training and vehicle repairing field.
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Concrete flexural machine 150 KN motorized, 1 gauge to perform flexural tests on concrete beam specimens max. dimensions 150x150x750 (600) mm.
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Features:
Micro feed precision
Adjustable gibs on table precision
Belt driven and round column
Strong rigidity power cutting and precise positioning.
Milling, drilling, tapping, boring and roaming.
Theoretical topics:
The electric field generated by a uniformly loaded unlimited plane surface
The electric field of a double plane surface
The potential and the potential difference
Characteristics of the electric field and its measurement units
Fields of force
The field vector
Energy of the electric field in the capacitors
Fault simulation
Capacitors: composition, identification, connection
Discharge of capacitors
Charge of capacitors.
Operation and programming of a DDC for heating and air conditioning systems
Process schematic of the simulated heating system with 2 boilers, 2 heating lines and water heating
Experimental unit from the practical series for the training of mechatronics engineers for refrigeration
Process schematics with bargraph displays and lamps for operating states of the actuators
16 potentiometers in the process schematics to adjust simulated temperatures
Process schematic of the simulated air conditioning system with selectable outer air and recirculating operation
Programmable DDC with selection and display of the operating states and error simulation
Process schematics on the front panel.
Slide valves allow you to change the configuration of the controlled system. Filling Tank used to demonstrate the characteristics of the controller system. Also includes a set of 10 transparent sheets, with a graduated horizontal scale and with a vertical one, for a manual recording of the characteristics of the controlled system, suitable to the use of markers soluble in water. Includes plug in devices for the sensors used to measure the level of the liquid.
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Flow measurement by paddle-wheel sensor
Generation of disturbance variables by ball valve with scale in pipe section outlet
Experimental unit for control engineering experiments
Flow control in a pipe section
Process variables X and Y accessible as analogue signals via lab jacks
Digital industrial controller, parameterisable as a P, PI or PID controller
Large process schematic on front panel
Rotameter to visualise the flow
Control valve: electric control valve.
Gauge of thread: Expressed in Decimal gauge DEC number and in the old system of thread numbering: DEC3 (2/0).
Type of thread: Non absorbable, synthetic monofilament (Nylon).
Length: 75cm.
Type of needle:
Point: triangular, conventional cutting
Shape: curved needle, 3/8 circle.
Length: approximately 30mm.
Sterile.
Disposable.
Initial sterilisation method:
Ethylene oxide gas.
Swing handle rated speed: 120r/min. The accuracy level is 10 (equivalent to 1 levels of arc length). Product material: Metal. The product is a crank insulation resistance meter. 500V, 25 - 3 type. Rated voltage: 500V + 10%, measured resistance range: 0 ~ 500M.
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The whole product is made of ABS plastic, no-load output voltage: 6.3V Output current: 0.2A.
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It is used for making projecting slide so as to reduce the burden on teachers in middle school; students can design projecting slide by themselves according to the outline of teacher. It helps to develop students’ practicing ability and enrich people’s extracurricular life.
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Made of 65/35 Polycotton
One outside left breast pocket, two outside lower pockets
Knit wrist cuffs provide a comfortable and secure fit
Standard pointed collar
Blue
Front snap closure
Knitted cuffs.
Wireless Temperature Sensor
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This apparatus enables experiments to be performed on rotational motion in general. The arrangement is fitted to a low friction ball bearing mounted rotating drum. The system is accelerated by a metal weight attached to a cord wrapped around the drum. Weights can be fitted to a rotating rod at marked distances from the centre. A dumb bell-shaped arrangement is thus created; the inertia properties of this arrangement can be changed easily and recalculated. The experiment is set up quickly using table clamps and stands; it is ideally suited to group work for 2-3 persons. The time taken for the weight to fall is measured using a stopwatch, the moment of inertia of the object can then be determined.
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The Basic Module Water Pumps is part of an equipment series that facilitates the investigation of a wide range of engines and machines. The pumps are installed in the experimental set-up using flexible hoses with rapid action couplings. The flow rate is set on a ball-cock and acquired with a magneto-inductive flowmeter. The sensors for intake and delivery pressure are fitted to the pumps to be investigated. Different water pumps can be operated on the basic module and investigated in respect of their characteristic behaviour. The drive motor for the pump drive is fitted to the Universal Drive and Brake Unit. All sensors are connected to the measuring unit that is part of the basic module. The measured values recorded are displayed on digital displays on this block.
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The module comprises a service module, hot water tank with a transfer pump and instruments for monitoring and control. Parallel or counter flow is by switching cold water hoses. The Concentric Tube Heat Exchanger, Transparent Casing apparatus is used for studying the heat transfer through a concentric tube under parallel or counter flow conditions. The unit requires outside cooling water supply. The unit consists of a concentric tube heat exchanger, and a service module.
Experiments:
Effects of flow rate and temperature difference.
Demonstration of heat transfer under parallel and counter flow.
Determination of heat transfer coefficient.
Mono-Jetronic always had adaptiveclosed-loop lambda control, and due to the simple engine load sensing, it isheavily dependent on the lambda sensor for correct functioning. Digital fuel injection. There are no sensorsfor air flow, or intake manifold vacuum. This system features one centrally positioned fuel injection nozzle Mono-Jetronicis different from all other known single-point systems, in that it only relieson a throttle position sensor for judging the engine load.
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