Engineering Project Case Studies | Erdman Anthony

Founded in 1930, Publix Food Stores now operates over 1,200 food markets in the Southeast. To expand its appeal to younger shoppers, the company developed a store format called GreenWise Market, which features organic, fresh, and prepared foods.

Publix hired Erdman Anthony to do the mechanical, plumbing, and refrigeration prototype work for this new concept. Prototype efforts require particular care when it comes to design decisions, as many stores are built based on the decisions made when developing the prototype. The entire effort was done using Revit, including the refrigeration work. GreenWise stores now have central refrigeration systems that use transcritical and cascade CO2 racks.

The HVAC system was designed to use dual-path mechanical rooftop units with heat recovery to provide an efficient system for good ventilation while holding relative humidity (RH) below 50%. Low RH is important in food stores, as condensation on refrigerated cases is detrimental to sales in addition to having health benefits. The plumbing spec included hot-water heat recovery from the refrigeration and water-efficient, hands-free fixtures. Locations with large parking lots have a hydroponic trailer where produce is grown to sell in the store, using reclaimed rainwater from the roof.  

Justin Litz, PE
Justin Litz, PE
 703-777-5988 x 5213