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Advantages and Disadvantages of Cold Storage Aluminium Pipes and seamless Steel Pipes

August 21, 2018

【China Aluminum Industry Network】 1. Aluminum has good thermal conductivity, reasonable configuration, 20% heat transfer capacity, small temperature difference between evaporation temperature and temperature inside the pipe, increased evaporation temperature, increased energy efficiency ratio of the compressor, and reduced energy consumption. , The energy-saving effect is remarkable.

2. Reasonable structural design The same length aluminum tube has 1.5 times the internal surface area of the steel tube, 2.5 times the external surface area of the steel tube, and its internal volume is one-fourth of the steel tube, with less refrigerant. , Save 2/3 of the steel row, saving system operating costs. The same size of cold storage, aluminum pipe only need to configure the top row to meet the requirements, while the steel row also need to configure the wall tube. From the convection heat transfer method, the top row is more reasonable and the convection heat transfer efficiency is higher.

3. The light weight per unit area of evaporated aluminum is one sixth of the weight of the steel row. Therefore, the installation is convenient and the support cost is reduced.

4, aluminum production in the factory to complete the production, quality and performance assurance, steel production site trouble, quality is difficult to guarantee.

5. The interior of the aluminum row has a high degree of smoothness, is easy to clean, and prolongs the service life of the compressor. The steel row is easy to rust and causes system blockage.

6, fluorine system configuration aluminum row, aluminum row can be configured electric defrosting device to solve the difficulty of steel row defrosting.

7. Aluminum fins and fins are extruded in one piece with high pressure resistance and strength.

8, cost-effective superior aluminum heat transfer coefficient -40 °C ~ 0 °C evaporation temperature K ≈ 9 ~ 14w/? °C, steel pipe heat transfer coefficient -40 °C ~ 0 °C evaporation temperature K ≈ 8 ~ 13w / °C, for the same cold storage (under the same load), the aluminum row configuration evaporation area is smaller than the steel tube. In addition, from the aluminum cost and advanced die-casting technology and other comprehensive costs, the aluminum unit price per unit area is higher than the steel pipe but the aluminum pipe performance is much higher than the steel pipe, the overall cost-effective aluminum row is superior to the steel row, so the choice of aluminum Row is the ideal solution.

In summary, although the aluminum emission cost per unit area of evaporation is higher than that of the steel row, the long-term performance of energy saving and energy saving of 30% is far better than that of the steel row. The aluminum market has a promising future.

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Author:

Ms. Sunny Peng

Phone/WhatsApp:

+8618333120628

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