The difference between air cooling and water cooling in refrigeration systems

Comparison of advantages and disadvantages between air-cooled ice machine and water-cooled ice machine

First, the condensation system temperature limit of the refrigeration system:

Not higher than 55 ° C, not lower than 20 ° C. Air-cooled condensers are not recommended in areas where ambient temperatures exceed 42 °C. So whether you can choose an air-cooled condenser, first confirm the ambient temperature. When designing an air-cooled ice machine in general, customers must be required to provide the highest ambient dry bulb temperature in the country. Air-cooled condensers cannot be used in areas where the ambient temperature exceeds 40 °C.

1 , the advantages of air-cooled condenser:

(1) No water resources, low operating costs;

(2) It is easy to install and use, no other supporting equipment is needed, as long as the power is turned on, it can be put into operation;

(3) not polluting the environment;

(4) Applicable to areas with severe water shortage or poor water supply.

2 , the disadvantages of air-cooled condenser:

(1) Higher cost investment;

(2) The condensing temperature is high, which reduces the operating efficiency of the refrigeration unit;

(3) Not applicable to areas with air pollution and dusty weather.

3 , cooling performance of water-cooled condenser condenser:

Determined by the ambient wet bulb temperature, the higher the ambient wet bulb temperature, the higher the condensation temperature. Generally, a water-cooled condenser is used, and the condensation temperature is about 5 to 7 ° C higher than the ambient wet bulb temperature.

Second, the general refrigeration system condensation temperature limit:

Not higher than 55 ° C, not lower than 20 ° C. In general, water-cooled condensers are not recommended in areas where the ambient wet bulb temperature exceeds 42 °C. So whether you can choose a water-cooled condenser, first confirm the ambient wet bulb temperature.

When designing a water-cooled ice machine in general, customers must be required to provide the highest ambient wet bulb temperature throughout the year. At the same time, when the ambient temperature exceeds 50 ° C, the condenser cannot be cooled by water, and the cooling tower is easily exposed to high temperature. The cooling tower must be used with shading protection.

1. Advantages of water-cooled condenser:

(1) The condensing temperature of the refrigeration unit is low, and the refrigeration efficiency is improved;

(2) The initial input cost is lower than air cooling and evaporation;

(3) Good cooling effect, suitable for medium and large refrigeration systems.

2 , the disadvantages of water-cooled condenser:

(1) Consumption of water resources;

(2) Water spray, which has some impact on the surrounding environment;

(3) It is necessary to install a waterway system and a water supply system.

3 , cooling performance of the evaporative cold condenser:

Determined by the ambient wet bulb temperature, the higher the ambient wet bulb temperature, the higher the condensation temperature. Generally, a water-cooled condenser is used, and the condensation temperature is about 5 to 7 ° C higher than the ambient wet bulb temperature.

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