Des bassins et des rochers chauffés aident à maintenir le zoo ouvert toute l’année

Le défi

Les projets d’un zoo du Wyoming pour une nouvelle exposition de pumas, lynx, loutres, renards polaires et grizzlys demandaient que les animaux restent aussi près du public que possible. L’idée de « rochers » chauffés en béton, situés près des parois de séparation en verre de l’exposition était sûre d’attirer les animaux lors des mois les plus froids. De plus, un bassin chauffé pour les loutres qui pourraient aimer venir se baigner de temps en temps semblait être la clé pour qu’elles restent pleines de vie tout au long de l’hiver. Les seuls problèmes étaient : empêcher les animaux d’endommager les commandes qui leur offriraient du confort, et, éventuellement, de se blesser.

The Solution

The heated pools utilized a specially modified Chromalox over-the-side (OTS) heater to be used in a containment sump that circulates to the outside environment and draws the otters closer to the visitor area with warmer water.
The mountain lion, lynx, snow fox and grizzly bear exhibits featured freeze-protected “rocks” which were heated by Chromalox mineral insulated cable that was attached to rebar within the concrete. This approach provided the needed flexibility and wattage per area to heat the surface of the curved and jagged rocks – and maintained the natural look of the exhibit without loss of heating integrity. The rocks are kept between 60? and 80? F, which provides a comfortable environment for the animals. Except for the grizzly bear exhibit, the temperature controls utilize RTD sensors from the conduit and junction boxes to keep the temperatures within the desired range. The controls are kept to the side of the exhibit, away from the animals.
Because grizzly bears have powerful claws that can dig through most anything – even concrete, with time – a special ¼” metal-plated enclosure was designed for the power connections and sensors in that exhibit, allowing it to be submerged in enough concrete to be “bear-proof.”

Benefits

  • Year-round “natural” environment created through comfortable heating control
  • Animals protected from potential self-harm through their natural curiosities and tendencies to dig
  • Extended months of business operation and sales opportunity