A Study of the Influence of the Boundary Conditions Type on Integral Characteristics of a Bench Coiled Heat Exchanger

A study of the influence of the boundary conditions type on such integral characteristics of a bench coiled heat exchanger as temperature and pressure fluctuations is presented in this paper. The change in the integral characteristics in the annular space of the heat exchanger was determined when specifying the equivalent boundary conditions of the first, second and third types. For the studied geometric model of the heat exchanger, numerical simulation was carried out in a wide range of Reynolds numbers taking into account the real thermal properties of the air. The fields of temperature, pressure and current density distribution in the annular space of the heat exchanger were obtained.

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