U. WASHINGTON (US) — Tweaking the design of open-front grocery coolers could reduce the energy they use for for refrigeration by as much as 15 percent.
Designing grocery display cases is not rocket science, but it has a lot in common with aeronautical engineering. Refrigerated display cases shoot jets of air across their front openings, creating an invisible shield that aims to keep cold air in and warm air out. But the current technology does so with limited success.