Bank hydrodynamic 

Hydraulic Benches

1. Dimensions: 3 m * 1.2 m * 1.5 m
2. Weight: 300-500 kg
3. Power supply: 400 V three-phase, 50 Hz
4. Maximum pressure: 10 bar (safety triggered at 12 bar)
5. Sensor accuracy: +-0.5% for pressure, +-1% for flow
6. Operating temperature: 50C to 400C  

Main Components

1. Hydraulic System
2. Centrifugal or piston pump:
3. Power: 1.5 to 3 kW (400 V three-phase power supply).
4. Max. flow rate: 50 to 150 L/min (adjustable via frequency inverter).
5. Head: 20 to 50 m.
6. Reservoir:
7. Capacity 200–500 L, stainless steel, with particle filter (25 µm).
8. Visible oil level + temperature control thermostat (fluid: water or ISO 32/46 oil).
9. Piping:
10. Transparent pipes (PVC or polycarbonate) for flow visualization.
11. Variable diameters: 20 mm, 40 mm, 80 mm (interchangeable).
12. Leak-proof quick-release couplings (camlock type).
13. Valves:
14. Manual valves (butterfly valve, ball valve).
15. Electronic control valves (with 4–20 mA linear actuator).
16. Check valve and pressure relief valve.

Instrumentation

1. Pressure sensors:
2. Analog pressure gauges (range 0–10 bar) + digital transmitters (accuracy ±0.5%).
3. Differential sensors for measuring pressure drops (e.g., between two pipe sections).
4. Flow meters:
5. Magnetic (accuracy ±1%) or ultrasonic (0–150 L/min).
6. Analog output (4–20 mA) or USB for data acquisition.
7. Thermometers:
8. PT100 probe for monitoring fluid temperature (0–80°C).
9. Reynolds Counter:
10. Module for displaying Reynolds number (laminar/turbulent flow) via an LCD display.

Control and Acquisition System
User Interface:

1. Integrated touchscreen for manual control (flow, pressure, temperature).
2. USB/Ethernet connectivity for data export.

Acquisition Software:

1. Compatible with LabVIEW
2. Real-time visualization of pressure/flow curves, pressure drops, and pump efficiency.

Programmable Logic Controller (PLC):

1. PID pressure control.

Measurable Experimental Parameters
Regular and Singular Pressure Drops:

1. Theory/Experiment Comparison Using the Darcy-Weisbach Formula.
2. Study of losses in bends, widenings, and narrowings.

Pump characteristics:

1. H-Q curves (head/flow rate) and efficiency as a function of speed.

Flow regimes:

1. Visualization of laminar/turbulent flow (with coloring if transparent pipes).
2. Calculation of critical Reynolds number.

Valve adjustment:

1. Impact on flow rate and pressure losses.