Numerical modelling of series-parallel cooling systems in power plant

Paweł Regucki, Marek Lewkowicz, Małgorzata Kucięba, B. Kaźmierczak, M. Kutyłowska, K. Piekarska, H. Jouhara, J. Danielewicz
2017 E3S Web of Conferences  
The paper presents a mathematical model allowing one to study series-parallel hydraulic systems like, e.g., the cooling system of a power boiler's auxiliary devices or a closed cooling system including condensers and cooling towers. The analytical approach is based on a set of non-linear algebraic equations solved using numerical techniques. As a result of the iterative process, a set of volumetric flow rates of water through all the branches of the investigated hydraulic system is obtained.
more » ... calculations indicate the influence of changes in the pipeline's geometrical parameters on the total cooling water flow rate in the analysed installation. Such an approach makes it possible to analyse different variants of the modernization of the studied systems, as well as allowing for the indication of its critical elements. Basing on these results, an investor can choose the optimal variant of the reconstruction of the installation from the economic point of view. As examples of such a calculation, two hydraulic installations are described. One is a boiler auxiliary cooling installation including two screw ash coolers. The other is a closed cooling system consisting of cooling towers and condensers.
doi:10.1051/e3sconf/20172200144 fatcat:ujeibkschfbyrfrbu47bqrea6a