What drives a cabinet's energy use?
The energy a refrigerated cabinet consumes is the combined result of several factors rather than one technical feature: how well the cabinet holds its cold air, how much heat it takes from the surroundings, how it circulates the air inside and how many hours a day it runs under which conditions. This is why the same model can consume noticeably differently in two different stores.
Open display or closed display?
The single biggest influence on energy is the door or cover decision. Open display lets the customer reach the product without obstruction and is an advantage for sales; in return, the cold air curtain is in constant contact with the surroundings. Closed display reduces that loss markedly. The decision depends on turnover: for a fast-moving group the customer reaches into often, open display makes sense; for slower-moving groups the return on closed display is high. The antifog door structure is the solution that keeps products visible in closed display.
Night covers
The hours when the store is closed are the easiest energy gain of the day. An open display cabinet keeps feeding its cold air curtain outside working hours too. A night cover lowers consumption during those hours and costs no sales, because there are no customers then. Night covers are offered as an option on Yaşarsan cabinets.
Lighting
Lighting matters in two ways: the energy it uses itself and the heat it adds inside the cabinet. LED lighting is markedly below older solutions on both counts. Yaşarsan cabinets offer bar LED for shelf lighting and tube LED for vertical lighting. Where the lighting sits matters too: a layout that lights the product from the right angle gives a better display at lower power.
Air distribution
A cabinet where cold air does not reach the display area evenly overcools the whole of it to compensate for the points that stay warm. The micro ventilation system distributes air evenly across the display area and removes the need for that compensation. Energy saving fans provide the circulation at lower power. The same logic applies to shelf loading: exceeding the load line blocks the air path and forces the cabinet to work harder.
Placement and ambient conditions
Where the cabinet stands in the store is a factor that is often underestimated. A cabinet next to the entrance, under an air conditioning outlet, near a heat source such as an oven, or on a façade in direct sunlight works in conditions far harder than those the catalogue values were given under. Values are given for an ambient temperature of 25 °C and 60% relative humidity; when the store goes above that, consumption rises with it.
Maintenance
Most silent increases in energy use come from maintenance. A dusty condenser, a worn door gasket, a blocked drain and a thickened layer of ice all make the cabinet work harder unnoticed. None of these shows up as a fault; they are understood months later from the bill. Regular cleaning and gasket checks are the cheapest improvement available.
Central system or built-in compressor?
In small and medium-sized businesses, cabinets with a built-in compressor are preferred because they run without requiring a central system installation. As the number of cabinets grows, a central system comes to the fore for energy and maintenance: heat is moved outside the store, servicing is gathered at one point and total efficiency rises. The crossover point differs from business to business; the number of cabinets, the run length and the available machine room are assessed together.
Energy-focused options at Yaşarsan
Yaşarsan Refrigerating cabinets offer a low-emission body structure, energy saving fans, micro ventilation, bar and tube LED lighting, and optional doors, covers and night covers. Actual consumption varies with the selected model, module length and store conditions; we share that calculation with you during the project. Share your sales area and product groups, and let us determine the right configuration together.
