In today’s booming fresh food market, the significance of fresh cold chain transportation has become more and more prominent. As the key equipment in this field, the performance and application of transport refrigeration units directly impact the quality and safety of fresh products.
1. Application of Refrigeration Units in Fruit Transportation
Fruits, being rich in water and nutrients, are quite sensitive to temperature and humidity changes. Take cherry transportation as an example. Cherries are best stored at a temperature between 0 – 2℃ and a relative humidity of 90% – 95%. During long – distance imports from abroad, transport refrigeration units are crucial.
These units maintain the low – temperature environment required by cherries in the carriage through precise temperature control. This effectively inhibits fruit respiration and the growth of microorganisms, thus delaying fruit ripening and decay. Meanwhile, the humidity adjustment system ensures proper humidity in the carriage. This prevents cherries from drying out due to water loss, which could otherwise affect their taste and quality.
However, transportation is not without challenges. For instance, when moving between different regions, significant external temperature changes can affect the carriage’s internal temperature. The Snewang refrigeration unit addresses this issue. It is equipped with intelligent sensors that monitor the temperature and humidity both inside and outside the carriage in real – time. These sensors then automatically adjust the operating parameters of the refrigeration and humidification systems, ensuring a stable internal environment.
2. Demand for Refrigeration Units in Vegetable Transportation
There is a wide variety of vegetables, and each has its own storage environment requirements. Consider broccoli transportation. Broccoli should be stored at 0 – 5℃ with a relative humidity of 90% – 95%.
During broccoli transportation, the refrigeration unit serves two main functions. First, through low – temperature refrigeration, it slows down the vegetable’s metabolic rate, reducing nutrient loss. Second, proper humidity control prevents the broccoli leaves from yellowing and withering. In reality, since vegetables continue to respire and release heat after being picked, the refrigeration unit needs to have a strong cooling capacity and a good ventilation system. This allows it to quickly expel the heat inside the carriage and maintain fresh, circulating air.
3. Refrigeration Unit Protection in Meat Transportation
Meat products, rich in protein and fat, are highly susceptible to microbial contamination and spoilage. For fresh pork transportation, the temperature needs to be controlled at 0 – 4℃, and the relative humidity at 75% – 85%.
During meat transportation, the transport refrigeration unit creates a stable low – temperature environment. This inhibits the growth and reproduction of microorganisms, ensuring the freshness and safety of pork. Additionally, appropriate humidity control stops excessive surface moisture evaporation, preventing the meat from drying out and discoloring.
Hygiene is a major concern in meat transportation. The Snewang refrigeration unit is designed with easy – to – clean features. Its internal structure is made of smooth, corrosion – resistant materials, minimizing places where bacteria can accumulate. Moreover, it is equipped with an air filtration system. This system effectively filters dust and microorganisms in the air, providing a clean environment for meat transportation.
In conclusion, transport refrigeration units are essential in the fresh food cold chain. They offer suitable storage conditions for various fresh products like fruits, vegetables, and meat through precise temperature and humidity control. In the face of challenges such as temperature fluctuations, humidity changes, gas pollution, and hygiene issues, Snewang transport refrigeration units are constantly innovating. By using intelligent control and other technical means, they effectively solve these problems.
As the fresh food market continues to grow and consumers demand higher – quality fresh products, the technology and application of transport refrigeration units will keep advancing. In the future, we anticipate more efficient, intelligent, and eco – friendly units. These will bring new life to the fresh food cold chain transportation industry and ensure consumers can enjoy fresh and safe produce.
