Minnesota Truck Wash: Boiler Scale Broken, 216% ROI

Home 9 Case Studies and Results 9 Minnesota Truck Wash: Boiler Scale Broken, 216% ROI
Key results
8% heat transfer improvement
24°F stack temperature drop
5.8 month payback

Case Study from HydroFLOW USA

The Challenge

  • Scale persisted despite softening and chemicals
  • Heavy scale coated internal boiler tubes
  • Acid cleaning was being considered
  • Heat transfer efficiency was reduced by scale

The Solution

One HydroFLOW® i45 unit was installed on the feed water line entering the 60 HP low pressure natural gas steam boiler in August 2013, with existing water treatment remaining active during the six month evaluation. The signal makes existing scale brittle so it breaks away and purges through blow-down while new scale doesn’t form.

Key Outcomes

R

Stack temperature down from 296°F to 272°F

R

Cash flow payback in under six months

R

Existing scale became brittle and broke away

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Projected long-term savings above $482,000

Independent Verification

All results in this study were measured and verified by third-party facilities managers and technical staff.

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