Abstract
The design methods for shipboard shell-and-tube oil and water coolers are presented. As a result of the review, it was revealed that currently there is no systematic and complete methodological support for the integrated computer-aided design of ship heat exchangers (CAD SHE), which in turn would be integrated into the CAD / CAM / CAE system and later on into the production preparation. From the analysis it follows that not all operating conditions of ship power plants are provided with an oil cooler. This is due to the fact that the surface of the cooler and its flow characteristics were calculated only on the nominal mode, and other operating characteristics were not evaluated. The complexity of the work of ship oil and water coolers lies in the fact that the parameters of the heat load on these devices change, the temperature and salinity of the outboard water change depending on the navigation area. Determining the effect of the oil cooler on changing the power of the power plant when the characteristics of the cooling coolant (seawater) change, such as initial temperature, flow rate, salinity, without additional testing in each mode is difficult. It is also difficult to change the salinity and temperature of the seawater during the tests. Thus, the designer of the power plant does not know how the mode of its operation will change when the ship (ship) in the World Ocean is different. This indicates the need to improve the methods of thermal and hydrodynamic calculations of SHE with their integration into the overall design system. Under these conditions, the problem of using integrated CAD SHE is of particular relevance.
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