CFD comparisons of open-type refrigerated display cabinets with/without air guiding strips

The results showed that the air guiding strips accelerate the air curtain vertically; leading to a stronger and stiffer air curtain, consequently inhibit the infiltration of the ambient warm air into the cabinet. The average temperature of simulated food in the cabinet decreases by 4.9 °C compared to the cabinet without the strip due to the improved protection of the stiffer air curtain. The cooling capacity required to maintain the food chilled decreases by 34%.