Loading unit is the independent modular servo drive unit, reasonable structure compact, powerful function, flexible installation and configuration, can satisfy various kinds of models for different loading unit to install location demand.
This slow strain rate (SSRT) constant corrosion (SCC) testing machine is mainly used for inspection, research of metal material static lasting tensile, creep, stress corrosion and the mechanical property test, etc can be used in NaOH, methanol, N2O4, NH3, NO3, H2S, CL solution, wet air and water, and other media environment of metal stress corrosion damage characteristic test.
Features:
Dynamic display of load, displacement, deformation and real-time testing curve on the screen.
Closed loop control of channels such as load, displacement, deformation, etc. Smooth switching in between.
Event data can be saved, test can continue to be interrupted when the power supply test.
The machine Supports more than 20 days of continuous testing.
Four specimen can be tensile test at one time.
Dynamic display of load, displacement, deformation and real-time testing curve on the screen.
Closed loop control of channels such as load, displacement, deformation, etc. Smooth switching in between.
Domestically pioneered open-testing-method settings. Engineers may set up testing projects then operators may employ the projects for testing, greatly reduced the difficulty of the operations and the requirement in the skills and trainings of the operator.
Capable of statistical operations on testing data (average, standard deviation, coefficient of variance).
Automatic requesting for testing result data, also capable of launching an advanced analysis to inspect the data.
Domestically pioneered process-oriented design of testing control. Provides users with intuitive testing control procedures and a wide range of instruction types. Also supports dynamic instruction parameter assignment.
Domestically pioneered highly efficient three-level operation model of testing data processing. Supports open testing data processing, appending custom testing data items and re-inspection of processed testing data.
Characteristic testing data can be marked on testing graphs.
Capacity: 100L
Cabinet Type: Upright
Volume Category: ≥ 80 <300L
Power requirement: 220-240V/50Hz
Operating ambient temperature: +10 °C - +32°C (Temperate zone).
Storage temperature: up to-86°C
Adjustable cabinet temperature set point -40oC to -86oC
The engine is controlled via the software, which provides users with a friendly graphical interface for real-time monitoring and operation. This software controls the engine speed, which is electronically controlled using a high precision fuel gear pump. This method gives a very fast engine response.
The engine inlet has been replaced with a custom fabricated frontal duct, to enable the air mass flow rate to be accurately measured.
An electronic pre-programmed controller constantly supervises the engine, ensuring safe operating conditions at all times.
The engine has been integrated into a sturdy metal frame that holds it firmly, whilst enabling accurate measurement of the thrust produced by the engine.
The engine is very easy to start and stop from the software interface and automatic, optimal start-up and power-down sequences are already set to assure minimum mechanical stresses. There is no requirement for compressed air supply or propane gas to start the engine.
The self-contained unit can do many experiments, but it can also connect to other products in the range for extra experiments. For cascade control of flow and pressure, it can link to the optional Pressure Process Training System. The Flow Process Training System is a compact and mobile unit for a wide range of experiments in flow control. It gives students a greater understanding of the stability of simple control systems. For distributed control, it can connect to the optional Computer Control System. For cascade control of flow and level, it can link to the optional Level Process Training System.
The main parts are:
A gap-type (rotameter) flow meter
Fixed orifice and pressure transmitter
Industrial controller with auto-tune feature
Two-channel chart recorder
Three-speed pump
Pneumatic control valve
Reservoir.
Cabinet Type: Upright
Capacity: 578L
Adjustable cabinet temperature set point -40°C to -86°C
Volume Category: ≥ 300 <600L
Storage temperature: up to-86°C
Operating ambient temperature: +10 °C - +32°C (Temperate zone)
Power requirement: 220-240V/50Hz.
The flow properties of a powder or bulk solid determine how it behaves during handling. A motor moves the shear cell relative to the lid in order to apply shear to the sample. For compaction (pre-shearing) the sample is subjected to a large normal force. In a ring shear tester, a bulk sample is contained in a ring-shaped shear cell. A normal force is exerted on the sample by way of a lid. A hanger from which a variable weight is suspended generates this normal force. For example, material may flow irregularly out of silos, or the flow of bulk solid may come to a stop. In order to avoid these problems in practice, soils can be designed on the basis of measurements using shear testers, such as the Jenike shear tester or a ring shear tester. From the shear force characteristics, properties such as the compressive strength and internal friction of the bulk solid can be determined. An electronically amplified force transducer measures the shear forces which are then recorded by data acquisition software over time. To determine the density of the bulk solid, the volume of the bulk sample is ascertained by recording the lowering of the lid using a vernier caliper gauge. After pre-shearing, shearing to failure is executed with a reduced normal force (strength measurement) and likewise recorded by the software.
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Mini Axial Flow Impulse Turbine is to be used with Hydraulics Bench. The Mini Axial Flow Impulse Turbine twin nozzles with flow control valves direct water jets to the runner radial blades. Mini Axial Flow Impulse Turbine demonstrates axial flow impulse turbine characteristics i.e. torque, power and efficiency at different speeds for various heads and flow rates of water. Flow rate is measured by the Hydraulics Bench measuring tank. The apparatus has a hose for connection to the Hydraulics Bench. Nozzle pressure is indicated by a pressure gauge. Torque is measured by a prony brake with two spring balances. Speed is indicated on a portable tachometer.
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A low range strain gauge transducer measures the positive or negative force caused by the torque reaction produced when swirling air is straightened by the honeycomb. This torque is normally calibrated over a small range for higher accuracy.
The display unit contains the signal conditioning electronics in a rack mounting module.
The front panel carries the 4 digit LED display, a main on/off switch and zero and span potentiometers. The rear panel connections include a 10V analog signal for connection to the data acquisition system.
The matrix is connected via a torque to a strain gauge transducer which is calibrated by suspending weights over pulleys either side of the torque arm.
The length of torque arm is such as to enable torque values up to 0.1Nm to be The unit shall be arranged for flow in an upward and downward direction and is supplied complete with adaptor plate having a pilot bore of diameter 50mm.
Swirl meter comprises a Honeycomb matrix mounted within cylindrical housing.
The dimensions of individual cell of the matrix being suitable for arresting the swirl of the incoming air
Consists of a fabricated steel frame bench mounted on casters, which house the major components Control, instrumentation and data acquisition is mounted on the frame in one 3U high, 19 wide electronic rack enclosure.
Intended for use with port models with a nominal free air capacity of 50 litres/second.
It is used for blowing or drawing air through the cylinder head port model. The mode of control may either be direct fan speed set point or by the test piece pressure drop set point. A variable speed centrifugal fan/blower unit, capable of 100mBar static pressure and a flow rate of 300m/hr, is attached to a base plate on the bottom level of the frame.
Capacity: 828L
Cabinet Type: Upright
Volume Category: ≥ 600 <900L
Operating ambient temperature: +10 °C - +32°C (Temperate zone)
Storage temperature: up to-86°C
Adjustable cabinet temperature set point -40°C to -86°C
Power requirement: 220-240V/50Hz.
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.
This Flow Control Apparatus is designed to demonstrate automatic control of the ow of water delivered by a centrifugal pump. The present invention relates to a flow control apparatus for a positive-displacement pump such as rotary-vane pump, plunger pump, gear pump, and more particularly to the flow control apparatus for keeping a flow rate of fluid discharged from the pump at the high rotational speed which is lower than a flow rate of fluid discharged from the pump at the low rotational speed. The unit enables students to investigate the effects of changing the parameters of the control algorithm (proportional band, integral action and derivative time) on the control capability of the system.
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Laminar Flow Apparatus is to be used with Hydraulics Bench. Two horizontal plates are placed closely together with seals on side edges. The top plate is transparent and has a transparent grid to help observe stream line patterns. Laminar Flow Apparatus equipment is designed to study laminar flow in two dimensions. Stream lines are produced by regulating a flow of dye from a reservoir through a series of holes at the upstream end. The set rests on adjustable screw supports with bulls eye level. This plate is removable to insert or remove models. The bottom plate has small holes which are connected by valves to a water supply or source and a drain or sink. Water is admitted through a diffuser at one end and drained at the other end.
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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.
Fridge-tag Ultra Low has a USB interface and can be connected to a PC, Laptop or Mac without any installation software. When connected, the Fridge-tag Ultra Low will generate a PDF document with a 56-day report which includes all relevant information per day such as min/max and average temperatures, time out of range, alarm history etc.
Fridge-tag Ultra Low is an electronic, ultra-low temperature (ULT) freezer temperature logger with an external sensor, factory-programmed alarms and visual display for monitoring storage conditions in vaccine ULT freezers over a 30-day period. The device shows the actual temperature, all alarm violations over the previous 30 days (on a rolling basis), the daily minimum and maximum temperature of the last 30 days, and the time duration of any violation.
The Fridge-tag Ultra Low operates with a replaceable external sensor, which has a 12-month operating lifetime and needs to be replaced annually. Each Fridge-tag Ultra Low is therefore supplied with 3 external sensors (1 x main sensor and 2 x spare sensors) as standard.
Capacity: 100L
Cabinet Type: Chest
Volume Category: ≥ 80 <300L
Operating ambient temperature: +10 °C - +32°C (Temperate zone)
Storage temperature: up to-86°C
Power requirement: 220-240V/50Hz.
An optional Pipe Flow and Nozzle Kit for the Centrifugal FanModule. The pipe tappings connect to amultiway pressure display. The multiple pressure tappings along the long pipesallow you to measure the pressure drop and therefore losses along them. A Pitot traverse fits at the endof one long pipe to allow you to measure the velocity profile across a pipe andcalculate the theoretical flow. The kitincludes three different fittings two elbows and a bend, that each fit betweenthe long pipes to test the pressure drop and therefore loss caused by the fitting. This kit includes two long lengths of smooth-walled pipe with multiplepressure tappings and a Pitot traverse. The pipes connect to the inlet of the soit becomes a suction fan for tests on the pipes. This allows a comparison with the flow foundfrom the standard nozzle and the orifice plate included with the kit. A probe mounts in an assembly so that it moves axially through an additional nozzle to measure its axial pressure profile.
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The chemical tubular reactor is widely used in the industrial practice because it is easy to be made and has good conversion yield that can be got by recirculating the mixture. The unit has been designed to realise an absolutely turbulent flow inside the reactor: two reagents are continuously fed and the obtained reaction is homogenous and approximately isothermal. The Tubular Flow Reactor teaching unit allows to study the reactions which can occur in a tubular reactor using the tubular flow method.
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The Mini Flow Channel in made of clear acrylic with an undershot weir at inlet and an overshot weir at discharge. Flow rate can be controlled by a flow control valve of the Hydraulics Bench. A dye injection system is installed at the channel inlet to observe flow patterns around models. Mini Flow Channel equipment demonstrates primary characteristics of flow in an open channel including flow patterns over or around immersed objects. It is to be used with Hydraulics Bench. Water is admitted to the channel through a cylinder with a stilling baffle to reduce turbulence. A grid on a white background is provided for easy observation of the streamlines.
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The unit is supplied with manuals which describe all parts of the trainer, the installation and utilisation procedures, as well as many exercises with the relative results. The self-sufficient unit is composed of a reversible type reaction hydraulic machine. A dynamometric brake motor dynamometer allows to determine all the relevant characteristics of the machine. By reversing the flow, the machine can operate both as an axial pump and as a Kaplan turbine.
The Reversible Flow Axial Pump Kaplan Turbine Study Unit is available in two versions:
Computerized version unit
Basic unit in manual version.
The fan inlet and outlet ports are designed to accommodate standard duct sections of 146 mm Of aluminum diameter and comprising sleeves Sealed by O-rings and tightened by Snap closures with quick disassembly. All these sections conform to the Standards.
65 mm nozzle at the inlet of the 146 mm duct diameter
65 mm diaphragm at the inlet of the 146 mm diameter
95 mm diaphragm at the inlet of the 146 mm diameter
Venturi nozzle of 95 mm-146 mm diameter Pitot tube and through mechanism
To install additional measuring devices, two Sections and a supporting device are included :
Section 1000 mm long and 146 mm in diameter, Comprises a honeycomb flow rectifier and three fasteners For the Pitot tube.
146 mm diameter input adapter, Includes measuring points for diaphragm or Venturi trunk.
