- Boiler Feedwater Demi water feeds steam generators and heat recovery boilers (HRSG). Any trace of dissolved salts or silica causes scaling on heat transfer surfaces and deposits on turbine blades — reducing efficiency and risking costly damage.
- Steam Cycle Makeup Losses from blowdown, leaks, and venting must be continuously replaced with demi water to maintain the correct water-steam balance and preserve steam purity throughout the cycle.
- Turbine Washing Gas and steam turbines require periodic online or offline washing with ultra-pure water to remove deposits from blades and restore aerodynamic efficiency.
- Cooling Systems Makeup In closed cooling circuits, demi water prevents scale and corrosion build-up inside heat exchangers and coolers protecting auxiliary equipment.
- Chemical Dosing Preparation Reagents used in water and steam conditioning — oxygen scavengers, pH correctors, corrosion inhibitors — are diluted and dosed using demi water to ensure precise, contamination-free injection.
