Preservation Technology in Fruit and Vegetable Refrigerated Storage

Preservation Technology in Fruit and Vegetable Refrigerated Storage

Sunnyda fruit and vegetable refrigerated storage employs a technique that utilizes a low-temperature liquid (ammonia or fluorocarbon) as a refrigerant. This liquid evaporates under low pressure and mechanical control conditions, absorbing heat from the storage facility and achieving the goal of cooling and temperature reduction. The most commonly used method is the compression refrigeration machine, comprising a compressor, condenser, and evaporator. Hanbing refrigerated storage adopts imported refrigeration compressors, ensuring stable and reliable quality, as well as energy efficiency and environmental friendliness.

Direct Cooling and Indirect Cooling Methods:

According to the evaporator device, there are two main methods: direct cooling and indirect cooling. In direct cooling, the evaporator is installed inside the refrigerated storage room. The liquid refrigerant, passing through the low-pressure evaporator, directly absorbs heat from the storage room, leading to temperature reduction.

Direct Cooling

Direct cooling involves placing the evaporator inside the refrigerated storage room. As the liquid refrigerant passes through the low-pressure evaporator, it directly absorbs heat from the storage room, resulting in temperature reduction.

Indirect Cooling

Indirect cooling utilizes a blower to draw air from the storage room into the air-cooling device. The air circulates around the evaporator within the cooling device, absorbing heat, and is then reintroduced into the storage room, effectively lowering the temperature.

Advantages of Air Cooling

The air cooling method offers advantages such as rapid cooling, even temperature distribution within the storage, and the ability to expel harmful gases like carbon dioxide produced during the storage process, ensuring a more controlled and sustainable environment.

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