ENSURING THE PERMISSIBLE TEMPERATURE LEVEL OF FORCED SHIP DIESELS USING NANOMATERIALS

Abstract

Intensification of heat transfer processes in the cooling system to reduce high temperatures of short circuit parts plays a significant role both by improving the regime and design parameters of the system and by increasing the thermal conductivity of coolants (OR). The latter became possible with the development of nanotechnology (NT), which allowed to create cooling nanofluids (OH), which are stable, stable two-phase suspensions based on basic OR and solid nanoparticles (NS) with a much higher thermal conductivity than the base coolant.

A significant increase in the coefficient of thermal conductivity of the coolant can significantly increase the intensity of heat transfer in cooling systems of water and due to this to ensure the allowable temperature level of their TD. To put OH into operation, it is necessary to conduct a set of studies of heat transfer processes during the circulation of these heat carriers with an increased coefficient of thermal conductivity in the cooling system of water.

The tendency to increase the specific and aggregate capacities of main and auxiliary marine diesels together with the improvement of their mass and dimensions requires new, additional ways to increase the intensity of heat transfer processes in CO engines to ensure acceptable temperature levels of their TD. Studies have shown that the modification of coolants of marine diesel engines with highly thermally conductive carbon LF MG is an effective way to intensify the heat transfer processes in the CO of diesels, taking into account the design measures considered in the master's thesis. The results obtained during the study are reduced to the following main conclusions and recommendations.