The Finned Tube Bundle In Cross Flow accessory includes a clear plastic plate that is designed to fit the aperture in the Cross Flow Heat Exchanger duct. An electrically heated finned active element with an integral surface thermocouple is supplied which may be inserted in place of the removable tube in the centre of each row. The plate consists of a four row finned tube bank with a removable finned tube in the centre of each row. Replacing the removable tube in each row in turn in the tube bundle allows the variation in heat transfer coefficient in a tube bundle to be investigated.
Experimental Capabilities:
Steady state determination of the mean surface heat transfer coefficient for finned tubes in the 1st , 2nd 3rd and 4th rows of a Finned Cross Flow Heat Exchanger.
Investigation of the effect of external fins on the heat transfer watt density of plain tubes in cross flow.
Electronic drive units independently control both motors. Meters show motor electrical power consumption of each motor. A close-coupled load cell on each motor measures torque. Sensor on each motor measures speed, shown by a digital indicator. This test set has two independently-controlled, motor driven compressors, inter cooler and air receiver. It works as a single-stage, two-stage or two-stage compressor with inter cooler. The product of the torque and speed gives true shaft power. To allow students to study different types of air compressor systems, diverter valves allow air to move in different directions. All controls and instrumentation are on an easy-to-operate mimic panel. Electric motors and low-maintenance toothed belts drive two twin-cylinder, air-cooled reciprocating compressors. These include:
From the first stage to the receiver
To the second stage, by means of the integral water cooled inter cooler
Directly to the second stage
Compressors:
Twin cylinders
Maximum delivery pressure 10.3 bar
Speed range 200-1000 rev.min1
The apparatus comprises of two units: the manometer and gauge assembly and the calibration of a pressure gauge assembly. During test, calibration weights are placed onto the loading platform, which is an integral part of the piston assembly. All air is expelled from the system through a purge hole in the upper part of the cylinder. The internal mechanism of the gauge is clearly visible through the transparent dial.
The apparatus has been designed to allow the suction pressure or delivery pressure of a diaphragm pump to be measured on sloping or vertical manometers and Bourdon gauges, for comparison; and to investigate the calibration and internal workings of a Bourdon gauge.
Strain gauge are fixed at different locations of the beam specimen. Each gauge is wired to form a full bridge with temperature compensation and zero adjustment. Strain And Stress Of Material is to be used with Universal Base Frame. A beam is simply supported at both ends. Load is applied by a load hanger and weights. The Strain And Stress Of Material apparatus demonstrates the use of electrical resistance strain gauge in measuring strain of material under stress. Strain are measured by a strain indicator.
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The demonstrates the types of systems that are used in a lot of small applications in dangerous environments where systems using electrical power cannot be used or where there is no electrical power supply.
A Compressed Air Refrigeration Training Bench for studying refrigeration using compressed air. Using the whirling motion of a specially designed and shaped vortex distributor, the compressed air expands and is divided into a cold stream and a hot stream. This is an unusual method of producing cold air by the expansion of compressed air. The cold stream is utilised and the hot stream is exhausted into the environment.
The designed and manufactured to incorporate all current safety standards.
Experiments:
Thermodynamics of compressed air
Plotting the air transformation due to air expansion on a temperature-entropy diagram
Coefficient of performance (C.O.P) determination
Demonstration of producing hot and cold air through a system that has no moving parts
Determining the outlet temperature in relation to the feed pressure
Determining the useful refrigeration power
Detecting the operating curve of a vortex tube by varying the inlet pressure and the weight ratio between hot and cold air.
Features:
Automatically retrieves test data and inspects the stress relaxation performance of the specimen. (e.g. stress relaxation rate, relaxed stress, relaxation rate, etc.)
Splitting the sampling stage into four sub-stages and applies different sampling cycles in consideration of the logarithm characteristic of time, improving the reliability of data greatly.
Real-time drawing of curves of remaining load with time, or temperature with time.
Support for 100-hour tests. Test time can be assigned at will. E.g. 24-hour test.
Closed loop control of channels such as load, displacement, deformation, etc. Smooth switching in between.
Algorithm to predict specimens stress relaxation performance after 1000 hours (or any specified value in hours), with the option of single or double logarithm. Capable of predicting with standard specimen data or real-time collected data (Suggested). Integrated with an extensive specimen library to improve the precision and reliability of testing results.
Cross Flow Turbine Test Set is designed for studying the Cross Flow turbine characteristics under various flow rates and heads. The adjustable nozzle direct a water jet tangentially to the runner. Power output can be measured by either dynamometer or generator. The unit is on wheels. The unit consists of a storage tank, a pump, a turbine, a dynamometer, a generator, and measuring instruments.
Experiments:
Power output vs speed for various heads and flow rates.
Efficiency vs speed for a given head and flow rate.
Racing characteristics.
Torque vs speed at various heads and flow rates.
Overall turbine-generator efficiency.
Mass Spring System are added to the lower end of the spring to vary the frequency of oscillation. Frequency, periodic time and deflection can be measured. Experimental module, which fits into the Vibrations Frame making up part of the Universal Vibration Apparatus. Loading is achieved through the use of various masses. An upper adjustment system allows the springs vertical position to be varied and thus its deflection increased and decreased. An open helical spring is mounted inside the Vibrations Frame and free to vibrate vertically through a linear bearing guide.
Experimental Capabilities:
Measures periodic time and deflection. Open helical springs mounted and free to vibrate vertically loaded by various masses.
Modular based experiment making up part of the Mass Spring System
All elements mount within the frame.
The trainer is manufactured using fully functional aircraft components. Due to the close proximity of all the components, students can comprehend how the total system works and how the interaction between various components regulates the cabin environment. The Cabin Pressurization System simulates the function of a complete aircraft cabin atmosphere and pressurization control system. The trainer has two sealed chambers simulating altitude and cabin pressure. The cabin chamber simulates the pressurized aircraft cabin, and contains cabin components. The vacuum chamber can simulate altitude up to approximately 22,000 ft. above the mean sea level.
System Features:
Pressure monitored in cabin chamber
Altitude controlled in vacuum chamber
Operates from115/ 220 VAC electrical power
24 VDC power supply included
Differential controller
Rate of climb indicator
Aircraft components
Cabin pressure sensor
Altimeter
Cabin pressure chamber (cabin simulator)
Vacuum chamber (altitude simulator)
Cabin dump valve
Regulating valve
Regulator(simulates air to cabin).
The volleyball is delivered deflated and supplied with two non-return inflating needles. The model is suitable for all types of playground surfaces.
Volleyball, professional/official size, circumference 65-67cm, weight 250-280g. Outer casing is made of synthetic leather, 18 panels; non-return valve; its colour may be a uniform light colour or a combination of colours.
Tray, instruments.
Material: Austenitic stainless steel.
Seamless tray with cover.
Rectangular with rounded corners, smooth surface.
Austenitic stainless steel composition: 18-20% chromium, 8-10% nickel.
Reusable.
Length: approx. 215-235 mm.
Width: approx. 120-130 mm.
Height: approx. 45-50 mm.
Thickness: approx. 0.75-0.85 mm.
An ECG monitor included with the unit is used to verify the presence of a shockable rhythm and the effectiveness of treatment. Defibrillators deliver a high-voltage electrical impulse to the heart in order to restore normal rhythm and contractile function in patients who are experiencing ventricular fibrillation (VF), ventricular tachycardia (VT), or another shockable rhythm.
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Used in surgery and nursing activities.
Forceps without teeth are used for dissecting delicate tissues.
Dressing forceps for gripping, dissecting tissue and coagulation of vessels.
MACHINIST HAMMER WITH FIBRE GLASS HANDLE
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Impact Drill C/W Wrap Accessories
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Water Pressure Tester Hand type
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Jacketed Glass Reactor for Pilot Plant Reactor System 10L capacity
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The pressure rod moves boththe pistons in the brake master cylinder and the braking process is started. By pressing the lever the outer valve can be seen to open. The piston rod with diaphragm disk moves forward.
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Capacity: 10 Ton
Oil cylinder stroke. RAM height: 180mm
Type: Hand operation
Size: 335*580*1000mm
Weight: 54kg
