🔍 Key Concepts

• Brine density and why it matters in evaporators (scaling, tube fouling, efficiency) • How heat transfer surfaces are exposed in each evaporator type (flash, basket, submerged tube, solo shell) • Which designs allow short residence time and quick discharge of concentrated brine

💭 Think About

• For each evaporator type, think about how long the brine stays in contact with hot surfaces and how easy it is to remove concentrated brine. • Ask yourself: In which system would scaling from high brine density cause the least operational trouble? • Consider which design operates more like an "instant" evaporation and separation process rather than holding a big volume of brine over time.

✅ Before You Answer

• Identify which evaporator has the shortest brine residence time at high temperature. • Consider which system’s performance is less sensitive to scaling on heating surfaces. • Check which design naturally allows frequent blowdown or discharge of concentrated brine, reducing the need to tightly control density.