🔍 Key Concepts

• Behavior and purpose of a flash-type evaporator in marine distilling systems • Function of the salt water feed heater and what its condensate represents in the system • Where relatively fresh, low-salinity condensate is normally routed for best heat and water recovery

💭 Think About

• Think about whether the steam condensate coming from the salt water feed heater is salty brine waste or relatively fresh water that still has useful heat in it. • Ask yourself: in an early flash-type evaporator, which component would most benefit from receiving warm, relatively fresh condensate to improve efficiency? • Consider which option would be a wasteful place to send recoverable condensate versus a location that helps the distillation process.

✅ Before You Answer

• Is the condensate from the salt water feed heater usable fresh condensate or concentrated brine? • Which destination would recover heat and aid evaporation rather than simply discarding energy and water? • Eliminate any option that clearly represents a final disposal path for waste brine rather than a process-use location.