The Nozzle Performance Test Unit has been designed to allow the study of the reaction of a compressed air stream through different types of nozzles.
It is possible to utilize the unit in two different circuit configurations:
In the first configuration the air jet coming out from the nozzle hits a special impact head mounted on a balance arm. In the second configuration, the air jet comes out from the nozzle vertically upwards, pushing the balance arm downwards. In both configuration, the forces generated are measured by a mechanical micrometer fitted with an electric sensor.
The first allows to study the speed of the jet coming out from the nozzle,
The second allows to study the thrust of the jet itself.
Compressed air regulator for adjusting the pressure downstream of the nozzle
Needle valve on the flow meter for adjusting the back pressure
Nozzle pressure distribution in actual flow of compressible fluids
Instruments: manometer and digital temperature display upstream and downstream of the nozzle as Well as rotameter
Three nozzles with pressure measurement points: 1 convergent nozzle, 1 short and 1 long de Laval nozzle.
All three nozzles have axial static pressure tappings allowing the approach, throat and divergent section pressures to be measured. The variation of pressure ratio and mass flow may be investigated for all three nozzles.
Two convergent-divergent nozzles of with the same throat diameter but different discharge area and a single convergent nozzle having the same diameter are supplied and fit in the common test section.
Steam passes from the inlet chamber, through the test nozzle, into the exhaust chamber and finally into the surface condenser via a back pressure control valve. Nozzle Steam Bench consists of a sturdy framework and panels of all steel construction, fitted with a student work surface, interconnecting back panel and adjustable feet. Steam supply to the inlet chamber first passes through a steam separator to remove excess water content and the chamber is fitted with a throttling facility to enable the dryness of the inlet steam to be determined. The steam chest consists of an inlet chamber and an exhaust chamber with a test nozzle positioned in the wall common to the two chambers.
Experimental Capability:
Determination of critical pressure ratio for choked flow
Calculation of velocity through length of nozzles of various forms
The variation of pressure along a nozzle profile as a function of back pressure
The effect of back pressure on the mass rate of flow
Measurement of state at entry to the nozzle and subsequent calculation
A comparison of theoretical and actual throat pressures on rates of flow
Study of shock wave formation within nozzle divergence and at nozzle outlet
Study of the effects of friction in a parallel nozzle.
Lightweight and breathable microporous composite material offers comfort and protection for a broad range of non-hazardous applications.
Features tapered collar, elastic wrists, 3 pockets, snap close and serged seams.
Strong breathable material offering protection
Non-confining tapered collar designed like shirt collar for style and comfort
Length approximately adjusted to size to provide additional coverage
Five-snap closure to provide fill coverage without gaps.
Nuclear Trainer also comes with an option to have a controller automatically control the plant startup and shut down sequence. Nuclear Trainer comes complete with an interactive power point led discussion revealing the pros and cons of nuclear power for the 21st century. " Steam Generator powers an actual "turbine" which produces electricity. This three loop pressurized water reactor shows the separate but thermodynamically connected water loops via manually controlled LEDs, strobe reactor and "control rods.
....
It uses external magnetic blackboard, people can write on the blackboard with a pen and there are directed line segment expressed number axis and arrow indicator with magnetic property on the blackboard.
....
The industrially-standard items are clearly laid out, screw-fitted into an aluminium panel. The symbols on the panel show the correct graphical representation as well as the DIN and standard designations of the items concerned. This instructional kit is used for demonstration and information purposes. No provision is made for conducting exercises or experiments. The kit is clearly laid out on a plastic tray. The well-structured instructional material enhances the informational value of the kit.
....
Nutsche Pressure Filter For Discontinuous Cake Filtration
Bottom Flange With Recessed Sieve Base And PP Filter Cloth
Enclosed 3-Part Vessel With 2 Flanges And 2 Bumped Bases
Bottom Section Of Vessel To Collect Filtrate
Maintenance And Pressure Control Unit To Adjust Positive Pressure In Centre And Top Section
Centre Section To Form Filter Cake
Top Section Removable To Remove Filter Cake
2 Sight Glasses To Observe Level In Bottom Section
2 Manometers To Indicate Pressure Upstream And Downstream Of Filter
Production and transport of suspension with suspension production unit.
