Brkić, D.; Praks, P. An Efficient Iterative Method for Looped Pipe Network Hydraulics Free of Flow-Corrections. Fluids 2019, 4(2), 73. https://doi.org/10.3390/fluids4020073
Brkić, D.; Praks, P. An Efficient Iterative Method for Looped Pipe Network Hydraulics Free of Flow-Corrections. Fluids 2019, 4(2), 73. https://doi.org/10.3390/fluids4020073
Brkić, D.; Praks, P. An Efficient Iterative Method for Looped Pipe Network Hydraulics Free of Flow-Corrections. Fluids 2019, 4(2), 73. https://doi.org/10.3390/fluids4020073
Brkić, D.; Praks, P. An Efficient Iterative Method for Looped Pipe Network Hydraulics Free of Flow-Corrections. Fluids 2019, 4(2), 73. https://doi.org/10.3390/fluids4020073
Abstract
Original and improved version of the Hardy Cross iterative method with related modifications are today widely used for calculation of fluid flow through conduits in loops-like distribution networks of pipes with known node fluid consumptions. Fluid in these networks is usually natural gas for distribution in the municipalities, water in waterworks or hot water in district heating system, air in the case of ventilation systems in buildings or mines, etc. Since, the resistances in these networks depend of flow, problem is not linear like in electrical circuits, and iterative procedure must be used. In both version of the Hardy Cross method, in original and in the improved one, initial results of calculation in iteration procedure is not flow, but rather the correction of flow. Unfortunately, these corrections should be added to or subtracted from a flow calculated in previous iteration according to complicate algebraic rules. After the here presented node-loop method, final results in each of the iterations is flow directly rather than flow correction. In that way complex algebraic scheme for sign of flow correction is avoided, while the final results still remain unchanged. Numbers of required iterations for the same results are comparable with the improved Hardy Cross method.
Keywords
Pipeline network; Gas distribution; Water distribution; District heating hydraulics; Hardy Cross method; Looped pipeline
Subject
Engineering, Control and Systems Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
