For cooling gases and liquids, the apparatus is widely used by air blowing. They help protect the desired temperature and provide fixed equipment. With the growth of requirements for the quality of products, the load on such systems is constantly growing and scientists from Perm Polytechnic to modernize structures to increase the efficiency of heat transfer 17%. This will reduce energy consumption and cope with increasing production loads.
The main element of the device is rib tubes with hot liquid. The fans are airing from the ribs, the heat takes the heat and the product cools to 5-50 degrees. Now the ribs are usually smooth and give about 90 watt heat transfer coefficients per square meter, which is not always sufficient for modern tasks. Perm Polytechnic Specialists developed ribs in the form of spiral leaves with a 10 -degree slope that increased heat transfer.
Experiments on a simulated hydrocracing device showed that the new bathrobe form increased heat transfer by 17% compared to the classic option. According to a PNIPU teacher Yevgeny Shestakov, spiral ribs create a turbulence airflow, develop contact with tubes and accelerate cooling. This innovation helps to make the equipment more effective and meets the modern requirements of the oil refining industry.
Source: Ferra
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