Kuwait’s summer passes 50 C and much of its water comes from desalination, which is low in hardness but aggressive to carbon steel. District cooling serves many subscribers and runs near full load for most of the year.
The Operating Reality
District cooling plants and large complexes serve towers, malls and mixed-use developments through chillers on cooling towers, with make-up from desalination product and groundwater blends under extreme heat.
Why It Matters Here
Desalinated product water is low in hardness but corrosive to carbon steel, so corrosion control and inhibitor protection must run alongside cleaning. With near-year-round full load, a small capacity loss is distributed across many subscribers, so upstream capacity matters most.
Local Conditions That Drive Fouling
- Desalination product water is low in hardness but aggressive to carbon steel, so inhibitor dosing and corrosion monitoring run with cleaning.
- Extreme heat puts tower water in the 25-45 C growth window and peak load at the same hours, so the ~4% per 1 C penalty is at its largest.
- District cooling spreads a small capacity loss across many subscribers, so keeping the plant clean directly protects the whole network.
How Automatic Tube Cleaning (ATCS) Fits
- Sponge balls (DN100-500 compatible, 0.1 mm oversize) circulate every chiller cycle, sweeping tubes with no shutdown.
- End-difference is held near ~1.2 °C instead of drifting to 3 °C+, avoiding the ~4% per 1 °C compressor penalty.
- Continuous sweeping removes the biofilm layer (up to ~300× more insulating than a clean tube) rather than reacting after a deposit forms.
- Systems are sized to tube count and metallurgy — titanium, copper-nickel, stainless and carbon steel all supported.
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FAQ
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