Large scale industrial freezers carry large volumes of frozen, perishable goods at sub-zero degrees Celsius. Without adequate slab conditioning the ground moisture would freeze causing swelling and severe instability in the building, known as Frost Heave. Insulation alone however cannot protect the slab therefore there must be an effective, reliable way to return heat to the ground protecting the building for the long term.
By circulating warmer (10-15ºC) water through pipes that are set in the lower portion of the freezer slab a constant and reliable source of heat recovery can be achieved, ensure the ground temperature remains above 0ºC. With hydronic systems energy required to heat the water can be drawn from the exhaust heat created by the chillers requiring minimal operating costs and carbon footprint.
REHAU's high performance PE-Xa piping systems with oxygen barrier provide a reliable, efficient and cost effective slab tempering solutions for the protection of frozen goods.