Technology used in the design of aircraft wings is being used to make supermarket fridges more energy efficient.
Commercial refrigeration company Fridgeland has designed a set of aerofoil strips to be fitted along the shelf edges of supermarket fridges in a bid to lower energy usage as well as improve performance. The transparent strips can be applied either on top or with the price tag behind.
The functionality of the strips is similar to that of aircraft wings, but rather than creating lift, they stop cold air from leaving a fridge and minimise the chance of mixing warm air with cold air – two of the main contributing factors behind high energy consumption.
Independent lab testing conducted by RD&Bristol showed that aerofoils presented an energy saving of 15 per cent to 17 per cent. As refrigeration usually makes up for 60 per cent to 70 per cent of total energy use in a supermarket, these results display a significant cost in savings, explained Fridgeland MD Paul McAndrew.
He stated: “They don’t put a barrier between customers and products, can be fitted to any width of aisle, are comparatively low-cost and can be retrofitted to refrigeration without rendering the plant and pipework unsuitable,” he said.