Starting
- Make sure seawater ejector pump suction, discharge, and overboard valves are open.
- Start the ejector pump. Seawater pressure at the air ejector must be at about 3 bar or more.
- Wait for the vacuum to build up inside the freshwater generator shell. (About 92 % vacuum).
- Open the feed water valve to feed seawater to the evaporator. Adjust the feed water pressure. Normally for desired feed water pressure (thereby the flow).
- Open the main engine jacket cooling water inlet and outlet to the evaporator gradually.
- Open the air vent clock at the top of the evaporator to make sure the evaporator is filled with jacket co
- Switch on the salinity alarm panel for measuring the purity of the freshwater produced.
- There will be a sight glass provided at the suction line for the distillate pump.
- Make sure to condense the distillate pump and an open discharge valve to lead-generated water to specified storage tanks.
- Do checks while running the Fresh Water Generator
- Through the sight glass provided in the evaporator shell, observe the flashing of water.
- Also, check for the brine level inside. It should not be too high or too low.
- Shell temperature must be around 50 degrees Celsius.
- Make sure that the shell vacuum is more than 90% from the vacuum gauge.
- Check the seawater inlet and outlet temperature of the condenser.
- Ensure seawater pressure at the air-ejector inlet is more than 3 bars.
