The Low Temperature Refrigeration Study Unit is an extremely easy-to use and functional unit able to permit the study of a low temperature refrigerating cycle through a simple compression refrigerating cycle. A front panel with mimic diagram and instrumentation allows to keep the most significant thermodynamic quantities under control, so facilitating the students understanding and the teachers task. The unit allows the study of this cycle and particularly the influence of the temperature of the body to be cooled. Moreover it is possible to evaluate the cycle performances, hence the heat exchange when the body temperature changes. The main characteristic of the Low Temperature Refrigeration Study Unit is that to enable the student to study the low temperature refrigerating cycles, hence the properties of the low temperature heat exchanges, particularly the non-stationary low temperature heat exchange, as a function of the temperature of the body to be cooled. The unit is supplied with a manual which describes the components, the installation and utilization procedures as well as many exercises with experimental results.
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The electronic traction system is an automatically operatingsystem for improving start-off and acceleration capabilities on different roadsurfaces.
Cut away are:
Aluminium housing
Solenoid valve
Hydraulic piston
Multi-disk clutch
Oil pump.
Solar Teaching Experiment Kit system is a solar photo voltaic power system that can provide a practical teaching, testing and demonstration platform for solar cells, sine wave inverter and controller. To help students understand the principles of solar photo voltaic and learn the engineering application of solar photo voltaic. The work flow will be:
Then charge the battery through the controller.
Then convert 12VDC into 220VAC for all the load by sine wave inverter.
The solar energy is converted to low voltage 12VDC by solar cell module.
Experiments:
Solar cell directly load test
Controller principle experiment
Solar photo voltaic energy conversion experiment
Controller over-discharge protection experiment
Controller overshoot protection experiment
Environmental impact on the photo voltaic conversion experiment.
The ball is lowered into the concrete and the penetration measured. Consisting of a hemispheric ally ended cylinder with guiding frame and a handle graduated in inch, it is used to determine the workability of fresh concrete.
Cadmium plated for rust protection.
It can be used on site or in laboratory.
Closed loop proportional Âintegral control of the pressure
Characteristics of the pressure sensor
The Geothermal Flush Cart Learning System, which includes a mobile cart and a pump system, will cover flush cart set-up and operation to teach how to flush, purge, charge, and pressurize the geothermal system. It also covers introducing an anti-freeze additive to prevent pipes from freezing. Geothermal Flush Cart Learning System teaches how to purge debris and air from the geothermal loop and then charge it with a glycol/water solution. The Geothermal Flush Cart Learning System also includes world-class, highly interactive multimedia that will help learners to gain insight into the theoretical aspects of how the flush cart works and then allows them to follow along with step-by-step explanations of hands-on skills. Proper procedures for filling and pressurizing the system must be followed to avoid aerating the fluid being used to charge the system or this entrained air will lower system performance. Dirt and plastic pipe shavings can become trapped in geothermal systems during construction and must be purged to avoid damaging the system during operation.
Features:
Learn how to purge debris from a geothermal system
Expands geothermal learning capability.
It allows to perform educational exercises of programming, control and regulation on the axis movement. The operation phases correspond to the industrial techniques of loading and unloading used on the flexible lines. The Hydraulic Pick And Place Modular Robot robot has been designed with the proportional and on/off hydraulic technologies, electronic control. The unit is supplied together with a complete handbook.
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Electronic control of boom via speed control knob
Speed of water jet diaplyed
Bench top base unit with adjustable feet
Protective dome covers rotating parts
Deflection of jet observed for varying rotational speed of boom
Comprehensive instruction manual for student and lecturer
All relevant tools and accessories provided
Coriolis force visually demonstrated
Water tank and jet rotated on boom.
Students or teachers fit the magnetic parts of the kit to the Work Panel to study or demonstrate the forces around an inclined ladder-type structure. For use with the Work Panel the kit allows several experiments with a rigid body a ladder structure. The versatility of the kit means that you can adjust the ladder angle between more than 15 to 45 degrees and try it with or without a climbing mass at any position along its length. The kit holds a model ladder at different angles with or without a climbing mass and measures the horizontal and vertical forces. Supplies each kit with a fully illustrated user guide containing theory, experiments and typical results.
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Wheel and Axle Apparatus Using the hangers and weights allows the experimental determination of velocity ratio and comparison with calculated values. The dual diameter wheel has an axle supported on simple pivots in a sturdy wall mounting bracket. A load hanger is added to each cord allowing loading of the wheels using the calibrated weights set provided. Students can also determine the variation of effort with load and the variation of efficiency with load. Each wheel has a cord wrapped around its periphery. The cords can be wrapped in either direction around each wheel.
Experimental Capabilities:
Determination of variation with load of effort
Determination of variation with load of efficiency
Experimental determination of velocity ratio and comparison with calculated value.
The has been designed and manufactured to incorporate all current safety standards.
The refrigerant used complies with anti-pollution legislation.
A Domestic Air Conditioning Training Plant for investigating the hydraulic, mechanical and thermodynamic operation of a split-type air conditioning system.
The set of white acrylic models with black background comprise a cylinder, aerofoil, smooth contraction - enlargement, sudden contraction - enlargement, cross flow heat exchanger tube bank, and a bend and elbow model. Models are clearly illuminated when positioned in turn in the flow channel. The self-contained, bench mounting unit consists of a highwalled flow channel incorporating a detachable glass front panel, light source, inlet tank with removable flow straightener, level control sluice gate, outlet tank, electrically driven circulating pump, interconnecting pipework, flow control and drain valves, and is complete with a set of models, polystyrene beads and accessories. The aerofoil model allows the angle of incidence to be set as required and other models of the clients own supply can be easily fitted. Some models may be used to simulate either closed conduit or open channel flow by varying the quantity of water in the unit.
Features:
Flow pattern clearly visible
Self-contained system
Simple to operate
Wide range of models
Dye-free system
Illuminated system
Additional models easily made.
This hands-on training program is designed to offer the student a thorough job orientation and skill development for the front-end servicing of vehicles. The Four Wheel Suspension Steering Brake Program system offers complete alignment concept flexibility. from basic front wheel alignment (on the trainer); to a complete four wheel alignment on passenger can.
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Training Objectives:
Direct current wind energy installation
Alternating current wind energy installation
Complete system for wind energy
Installation and testing of the anemometer
Connecting the wind turbine and the anemometer to the trainer
Identification of the components
Installation and testing of the wind turbine
Battery regulating and charging.
The comparator shows the degree of deformation of the block. Rubber Resistance Apparatus Consists of a panel on which a block of Rubber as well as a console equipped with ab Dial are mounted. A total shear load of 12 kg is permitted.
Experimental Ability:
Determination of the stiffness modulus for the rubber
Observation of the driving force and the Shear deformation on a rubber block.
Determination of the variation in the deviation of the applied load
Demonstration of the relationship between the Shear and shear deformation.
Intended use:
PCR reaction tube to be used on most standard Thermocyclers, RT PCR platforms, DNA Sequencers.
Vaccine storage capacity: 15.40 liters
With lid and carrying handle.
Cold life 106 hours 9 minutes at 43°C without openings.
Supplied with 21 x 0.6 liter.
Weight fully loaded: 49.90 kg.
Vaccine storage capacity: 92 L
Volume category: >/= 60, <120L
Solar radiation reference period of 3.5 kWh/m²/day and hot zone (+43°C) test temperatures.
Operating temperature: Min and Max rated ambient temperature: +5 °C and +43°C
UIFPF: Grade A
PQS prequalified Solar direct drive refrigerator with no battery for storage of vaccines at +2 ?C to+8?C in areas without any electricity, or where there is less than eight hours of reliable electricity over a typical day.
Refrigerant: R600a, 50 grams.
Chalkboard panel without frame, 1160 x 760 mm, highly pressed fibre board insulite type, smooth surface on both sides, 5 mm (+/-0.5 mm) thick, with rounded corners, finished in black special blackboard paint on both sides and all four edges; granularity suitable for white slate pencil and chalk, UV dried (environmental friendly), for easy cleaning with dry or wet cloth. Two 10mm diameter eyelets (holes) on the 1160 mm side to permit hanging and use of both sides.
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Medical gas flow meter (Thorpe tube design) to regulate and measure the flow rate of medical gas supplied to a patient, maximum flow rate 5 LPM, for medical medical air.
Graduation shall have over 270 degrees of visibility.
Needle valve and body constructed of brass or aluminium.
Pressure compensated design to give specified accuracy for whole range of input pressures.
Thorpe tube design flow meter using DISS input connector for panel /regulator mounting.
Can be cleaned with damp cloth and a disinfection solution.
Transparent, graduated (metric system) column, shatter resistant polymer certified for medical use.
Calibrated at 50-55 psi / 345-380 kPa / 3.4-3.8 bar inlet gauge pressure.
Inlet pressure (nominal) > 50 psi (345 kPa / 3.45 bar), peak inlet pressure at least 100 psi (690 kPa / 6.89 bar).
