dV/dt = QentrĆ©e ā QsortieV: mĀ³; t: h if Q is in mĀ³/h.
Use when: Use a factor of 1/3,600 if time is counted in seconds.
Designing and testing a process flowsheet
Connect equipment, connections, capacities and instrumentation of a circuit.
What is happening?
A flowsheet represents the operations and flows of a process. The material balance must remain consistent at each node; insufficient capacity can limit an output and cause accumulation.
The mock test of this workshop uses a virtual tracer without energy. It calculates hydraulic flow rates and alarms, without predicting the reactions of ores and reagents or the chemical yield of a complete plant.
The formulas, with their conditions.
v = Q/A ; A = ĻDĀ²/4Q: mĀ³/s; D: m; A: mĀ²; v: m/s.
Use when: Convert mĀ³/h and diameters to mm before calculation.
hf = f (L/D) vĀ²/(2g)hf: m of fluid; f: Darcy factor; L, D: m.
Use when: Regular losses; singular losses and the choice of f require a complementary model.
Where is this principle used?
Mining plant design office
Define connections and identify hydraulic bottlenecks.
Educational commissioning
Test routing, distributions and instrument reading.
What to observe in the experiment
Set a capacity lower than the supply flow rate of a tank. Observe outlet flow, level and alarm, then explain the results.
References and readings
This sheet explains the principles and their assumptions. Educational simulation can simplify the process; an industrial model requires suitable data and validation.
Have you understood the essentials?
Only one correct answer per question. Answer all three questions, then view the answer key.
Intu Lab Ā· Understanding sheet Ā· Kimba Christian