It can be fed from our Hydraulic Bench or from the mains and it allows, by making use of different weirs, to carry out experiments on the open channels. The Flow Visualization Mini Channel unit, made of transparent plexiglas, allows to study the behaviour of a water flow in a channel of small dimensions. An ink jet device allows to visualize the water flow around the models.
....
Boundary layer studies involve the determination of the thickness of this layer and the velocity profile within it. These parameters will vary with velocity of the fluid flowing over the surface, the distance from the leading edge of the surface and the degree of roughness of the surface. When a fluid flows adjacent to a stationary surface, e.g. down a tube, the fluid immediately in contact with the stationary surface will have zero velocity. The resulting shear forces in this area will be significant and lead to high values of drag forces between the flowing and stationary surface. As a result there will be a comparatively steep velocity gradient associated with the adjacent boundary layer of the fluid. Boundary Layer Experiment accommodates these studies.
Experimental Capability:
Boundary layer growth on smooth and rough surfaces
To determine the velocity profile of the boundary layer at different distances from the sharp leading edge of a smooth test plate
To determine the velocity profile of the boundary layer at specified distances from the blunt leading edge of a smooth test plate
The applied force is captured on the digital display along with the revolution count of the specimen. Both values can be reset and zeroed (tared) prior to the testing commencing. When failure occurs, a microswitch stops the motor and the cycles to failure are registered on the digital display. A 2800rpm motor rotates a specimen through a gear and pulley arrangement between 5600 or 1425 rpm. The specimens are held within chucks and loaded using a cantilever arrangement, with the load being applied through a screw jack mechanism with integral cantilever load cell. This Rotating Fatigue Machine Digital Apparatus has been designed to introduce students to the effects of material fatigue using a sinusoidal variation of bending stress. The count remains when the motor is not running and the ability to reset the counter has been designed in. Through an appropriate spreadsheet software printing and manipulation of data can be completed.Specially machined necked test specimens are provided in steel. A safety guard shields all rotating parts. The digital display incorporates a usb socket, which allows a host computer to be connected to the. The software supplied with the allows the capture and reviewing of data. These have a 4mm nominal neck diameter and are held in the unit using collect chucks. All tooling is provided to allow the removal and fitting of these specimens.
Experimental Capabilities:
Introducing students to s-n curvesMaterial specification on fatigue limits
Specimen geometry on fatigue limit
To make an introductory study of fatigue using a wohler rotating fatigue apparatus, including the time to failure caused by various stress levels and materials
The accessory affords bending fatigue of a cantilevered strip of metal or plastic in modes varying from alternating to fluctuating stresses
Volume category: <150L
Gross volume-Freezer: 86L
Equipment operating voltage and frequency: 220-240 Volt, and frequency 50Hz/60Hz, 1ph.
Refrigerant: R600a, 50 grams
Energy consumption, stable running (kWh/24 hours): 0.95
Operating temperature: Max rated ambient temperature: +43°C
PQS Prequalified Mains Powered Vaccine/Water-Pack Freezer for storage of vaccines at -15?C to -25?C and freezing of water packs.
Glue, water-based, such as PVA (Poly Vinyl Acetate)
Bottle is labeled with product information (i.e. ingredients), age suitability, directions for use, safety instructions.
For classroom use with paper or cardboard.
No organic solvents, non-toxic, non-flammable, washable.
For gripping soft and delicate tissues (lungs and intestines).
Material: Martensitic steel (quenched, magnetic steel)
Martensitic steel composition: 0.15-0.20% carbon; 12-13% chromium.
Pressure force instrument: grasping forceps, springy.
Atraumatic ridged grippers, each with aperture (oval).
Soft ratchet, lockable.
Length: 16 cm.
Reusable.
Mechanical infant clinical scale, beam type, with tray, for use up to 16kg with 10g precision, with splash cover. Used for weighing infants in the context of growth monitoring.
Beam type mechanical scale for infants
Display: easily readable in low light working situations, signal white coloured numbers on black surface.
With easy zero adjustment possibility.
With stabilizing mechanism for faster reading of results.
Measuring range: 0-16kg
Minimum graduation: 5g
Readout in metric (kg)
Removable curved tray.
Reading time in seconds: about 30 seconds
Built in round level bubble with indication of centre.
Adjustable feet allow for horizontal levelling.
Self-priming centrifugal pumping set, capacity 30 Cubic Metres per hour at around 2900 RPM, at 20 metre TMH (Total Manometric Head) for 1-m suction head.
Maximum suction lift 5 metres.
Centrifugal pump, diesel driven, with a capacity of 30 m3/hr at 20 m Total Manometric Head.
These are drop forged and made of high quality chrome vanadium steel.
These spanners are widely used for its durability and quality.
Chrome Vanadium Steel, Full Polished or Satin Finish.
-lab-1054611025.jpg "Cathode ray tube (magnetic effect tube)")
Product is composed of a glass shell, a baffle, a fluorescent plate,a cathode, an anode and the base, The electrode distance is not less than 219mm, the length of the fluorescent board is not less than 120mm, the diameter of the main pipe is not less than 40 mm and the length is not less than 270mm, the width is not less than 35mm, and the fluorescent plate and the glass tube axis are about 10 degree.
....
This instrument is mainly used for the nature of the magnet, the magnet structure, composed of the electromagnet, the electromagnet magnetic and what factors, and the application of magnetic phenomena, the relationship between principle and magnetic compass, the interaction on magnetic two magnets on the car through a maze.
....
It is used for teachers in demonstration experiment of middle school physical hygiene teaching course, also used for student extracurricular activity groups.
....
For Use With (Equipment): Micro TPI and Micro TPW Portable Turbidimeters
Type: Primary Calibration Kit
Turbidity: 0.02, 10, 1000 NTU.
Maintenance Kit containing Leakage Detector
....
Automatic Glassware Washer
....
High Speed Cutting M/C 180
....
Data Collection Platform 64 Bit
....
