Bernoulli Theorem Apparatus
Product Code : EL-FML-11038
Quick answer: The Bernoulli Theorem Apparatus (EL-FML-11038) is a fluid mechanics lab set-up for verifying Bernoulli's theorem. Water circulates in a closed loop through a clear acrylic test section fitted with 9 piezometer tubes, so students can read the pressure head along the flow. Lab Exports manufactures it in Delhi for engineering colleges, polytechnics and TVET institutes.
Specifications
| Component | Specification |
|---|---|
| Test section | Clear acrylic, for flow visualisation |
| Piezometer tubes | 9 nos., P.U. tubing |
| Inlet tank | 20 litre, stainless steel |
| Supply tank | 70 litre, stainless steel |
| Measuring tank | 20 litre, with piezometer tube and scale |
| Pump | FHP, standard make |
| Piping | GI / PVC, BSP size |
| Timing | Electronic stop watch |
How the Bernoulli's theorem experiment is done
Bernoulli's theorem states that, for steady flow of an incompressible fluid along a streamline, the total head stays constant: pressure head p/(rho g) plus velocity head v^2/(2g) plus datum head z. The apparatus lets students check this along a test section whose cross-section narrows and then widens again.
- Start the pump and adjust the inlet valve until the water levels in all 9 piezometer tubes are steady.
- Read the pressure head at each tapping point from its piezometer tube.
- Measure the flow rate by timing the rise of water in the 20-litre measuring tank with the electronic stop watch.
- Work out the velocity at each tapping point from the flow rate and the local cross-sectional area, then the velocity head v^2/(2g).
- Add pressure head and velocity head at each point, compare the totals, and repeat at two or three flow rates.
Plotting pressure head, velocity head and total head against position along the test section shows where the velocity rises in the narrow part and how closely the total head stays constant.
Key features
- Clear acrylic test section, so the flow through the narrowing and widening parts can be watched.
- 9 piezometer tubes for reading the pressure head at every tapping point at the same time.
- Stainless-steel inlet (20 litre) and supply (70 litre) tanks.
- Closed-loop circulation from its own supply tank with an FHP pump, so the set-up runs stand-alone.
- 20-litre measuring tank with piezometer and scale, used with the electronic stop watch to measure flow rate.
Documentation and supply
Installation instructions and a manual are supplied with the apparatus, and most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures this apparatus at its works in Laxmi Nagar, Delhi, and supplies it to institutions in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
Related fluid mechanics apparatus
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- Venturimeter and Orificemeter Calibration Set-up (EL-FML-11040)
- Friction in Pipe Lines Apparatus (EL-FML-11042)
- Impact of Jet on Vanes Apparatus (EL-FML-11043)
- Metacentric Height Apparatus (EL-FML-11044)
- Pitot Static Tube Set-up (EL-FML-11045)
The full range is in the Fluid Mechanics Lab and the wider Engineering Lab range.
Frequently asked questions
What does the Bernoulli theorem apparatus demonstrate?
It shows that in steady flow the sum of pressure head, velocity head and datum head stays constant along the test section, while pressure head falls where the section narrows and velocity rises.
How many piezometer tubes does it have, and what size are the tanks?
It has 9 piezometer tubes. The inlet tank holds 20 litres, the supply tank 70 litres and the measuring tank 20 litres; the inlet and supply tanks are stainless steel.
How is the flow rate measured?
By timing the rise of water in the 20-litre measuring tank, which has its own piezometer tube and scale, with the electronic stop watch supplied.
What is the price of the Bernoulli theorem apparatus?
Prices are not published on the website. Add the apparatus to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code EL-FML-11038 and the quantity, to receive a quotation.
Does Lab Exports manufacture this apparatus?
Yes. Lab Exports manufactures the Bernoulli Theorem Apparatus at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code EL-FML-11038.
Request a quote
Email [email protected] with the house code EL-FML-11038 and the quantity, or add the apparatus to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
