Application of hydrodynamic modeling in 2D and 3D approaches for the improvement of the recycled water supply systems of large energy complexes based on reservoirs-coolers

摘要

Reservoirs-coolers are a typical component of technological schemes of large energy complexes. Thus, it is important to maximize the efficiency of their exploitation. The present paper discusses the possibilities of the increase in the efficiency of reservoir-cooler usage on the example of the Magnitogorsk Iron and Steel Works (further, PJSC "MMK"), which produces the greatest amount of rolled steel on one industrial site. A reservoir-cooler created on the basis of the Magnitogorsk Reservoir of Ural river is considered. The schemes for the location of the enclosing and diverting dams is suggested on the basis of hydrodynamic modeling in a 2D approach. The calculations are performed for different scenarios where both extreme climatic and technological conditions and the ones characterized by the highest repeatability are considered. To increase the stability of the reservoir-cooler functioning in a short periods of extremely high air temperatures, the scheme of the organization of selective water intake from the deep layers of the reservoir-cooler characterized by lower temperatures is worked out on the basis of hydrodynamic modelling in 3D approach. (C) 2019 Elsevier Ltd. All rights reserved.