Temperature reflux effect of upright glass door refrigerator

The temperature reflux effect is an important problem faced by upright glass door refrigerators in daily use. Especially when the door is frequently opened, it will significantly affect the cooling effect and energy efficiency of the refrigerator.
Causes of temperature reflow effect
Principle of thermodynamics: The temperature reflux effect is caused by the difference in density of hot and cold air. Cold air is denser, so when the refrigerator door is opened, the cold air will naturally sink and escape from the bottom of the refrigerator, while the warm air will flow into the top of the refrigerator. This exchange of hot and cold air is the core cause of the temperature reflux effect, which causes the temperature inside the refrigerator to rise rapidly.
Structural features of the glass door refrigerator: Since the upright glass door refrigerator adopts a transparent glass door design, consumers in a commercial environment can directly view the products in the refrigerator through the glass door. This design greatly increases the frequency of opening the door. Frequent door openings aggravate the temperature backflow effect. In addition, the thermal insulation performance of glass doors is poor. Compared with opaque metal doors, glass has a higher thermal conductivity and is easily affected by the external ambient temperature, further exacerbating the temperature reflux effect.
Influence of external environment: The temperature and humidity of the external environment are also key factors that trigger the temperature reflow effect. For example, in summer or in a high-humidity environment, the indoor air temperature is high and the humidity is high. Every time the door is opened, a large amount of hot air will quickly flow into the refrigerator, accelerating the rise in the temperature inside the refrigerator. This is especially true when there is a lot of traffic around the refrigerator or during peak commercial hours.