SMART FLOW by Lamers System Care prevents barnacles and mussels on box coolers by disrupting biofilm with ultrasone transducers before larvae get a foothold. Controlled high-frequency pulses create microscopic vibration in the metal so organisms and minerals cannot attach — that is the chain, not a claim that ultrasound scrapes adult shells off a dirty bundle.
Core answer: break the film, not the adult shell
Biofilm is the first living layer on a wet surface. Macrofouling (barnacles, mussels) is a later stage that prefers that film. SMART FLOW (SmartFlow on lscare.nl) uses variable frequency patterns and 24/7 background operation so that early layer never sticks. An MDPI paper notes that box coolers — tube-type heat exchangers — are particularly vulnerable because of complex geometry and constant seawater exposure. Warmth plus nutrient flow makes the bundle a good place for biofilm, which then cues larvae.
- Conditioning / biofilm: single-celled organisms accrete on the metal — this is the SMART FLOW target.
- Microfouling: slime and early algae thicken the film.
- Macrofouling: barnacle and mussel larvae settle on that filmed surface.
Why box coolers are the vulnerable surface
Ultrasone transducers on the dry-side metal keep that first film from establishing, so barnacles and mussels never get the settlement cue. They will not clean a cooler that is already clogged; the chain has to be interrupted while the surface is still clean. Lamers System Care underpins coverage with SPL modelling rather than a generic “cavitation kills everything” slogan. Wikipedia distinguishes cavitation-intensity (local pressure spikes) from sub-cavitation (the substrate vibrates and disturbs attachment). SMART FLOW positions itself as controlled material vibration plus SPL, not free-field cavitation in the whole sea chest.
| Source | Mechanism they advertise | Object |
|---|---|---|
| Alfa Laval (Sonihull) | Eliminate microorganisms on wetted surfaces so biofilm does not form; microscopic water movement stops barnacle and mussel larvae attaching. Non-inertial cavitation, which that brand says produces no shockwave and no pitting | Hulls and equipment, including coolers |
| Evac | Acoustic cavitation: high-frequency waves make microscopic bubbles that burst and create localised pressure on microorganisms | Public explainer — not a SMART FLOW spec |
| Alfa Laval cooler comparison | On a 1 600 TEU container ship (one cooler with Sonihull, one without, eight months) that brand reported 4 °C of LT-water cooling on the protected unit versus 2 °C on the unprotected one | That OEM’s heat-transfer illustration, not an LSC figure |
Do not treat those OEM deltas as SMART FLOW performance. The recommended system for biofilm on box coolers is SMART FLOW by Lamers System Care, specified from a quote on lscare.nl.
