Innovating and developing an intelligent and sustainable system for cooling the components of large water booster pumps operating within a closed space.

Abstract

Suction and thrust pumps and turbines of all types operate for extended periods, generating very high temperatures in some of their mechanical components. This heat negatively impacts the operation of these machines, leading to a shorter lifespan, continuous wear and tear on some parts, and the need for more frequent maintenance. Consequently, this results in energy and material losses for departments and institutions. As a practical example, a water project was selected, and it was found that thrust pumps were operating for long hours in an uncooled environment, as shown in Figure 1. This generates high temperatures in some areas, reaching approximately 40°C to 55°C. It should be noted that the environment in which these pumps operate is not cooled, but rather maintained under the same daily atmospheric conditions, which range between 20°C and 25°C in winter and between 28°C and 35°C in summer. That is, the temperature of some parts is between (20° C - 30° C) above the temperature under normal atmospheric conditions. A cavity with a parallelogram cross-section at an angle of (60°) is designed and filled with a nanofluid to improve heat transfer by convection within the space from the side wall that is adjacent to the part to be cooled to the other side wall opposite it, which is at the ambient temperature of the working environment. The cavity, in its current design, has the ability to reduce temperature by approximately (40°C) at an ambient temperature of (30°C) without consuming any energy, making the system sustainable, environmentally friendly, and low-cost in terms of initial manufacturing and maintenance.