Objective
To clarify and quantify the energy savings, technical mechanisms, and performance benefits of the REALice Vortex Process Technology (VPT) for ice rink resurfacing, including simplified modeling tools used by US and Canadian utility programs.
Where Do the Savings Come From?
REALice enables ice rinks to resurface using unheated city water by removing micro-bubbles through vortex-induced cavitation. The three core savings sources:
- No need to heat water to 130–160°F for resurfacing
- Raising brine temperatures by 4–5°F due to faster freezing
- Less refrigeration energy needed to freeze cold water
Validated Energy Savings
- Brine temperature reset of 4°F ➜ 9% energy savings
- Replacing hot water with 55°F city water ➜ up to 25,435 kWh saved per rink
- Natural gas savings: ~5,500 therms/year
- Payback with incentives: often <2 years
Technical Effects of VPT
VPT induces extreme pressure gradients and shear forces via controlled vortex flow, leading to:
| Effect | Benefit |
|---|---|
| Microbubble removal | Harder, clearer ice, no need for hot water |
| Lower viscosity | Faster freezing, better heat transfer |
| Higher conductivity | Improved thermal efficiency |
| Calcium crystallization | Prevents scaling, improves tower operations |
| Mixing and cavitation | Forces lime precipitation, increases pH |
Ice Quality Results (SCE Study)
- Rink A: Ice hardness increased by 39%, up to 80% harder in some zones
- Rink B: Ice hardness increased by 46%, with greater uniformity
- Tested with Schmidt Hammer for repeatable surface strength measurements
Installation & Incentive Eligibility
- Installs in 1–2 hours by certified plumber
- Must treat 100% of resurfacing water
- Accepted by utilities like SCE, PG&E, FortisBC, and others
- Qualifies as a hybrid incentive measure (simplified model supported by M&V history)
Conclusion
REALice VPT offers a low-cost, chemical-free, and energy-efficient upgrade to traditional resurfacing methods. With clear operational savings, better ice, and minimal disruption, it’s a strong candidate for any rink seeking sustainability and performance gains.
