Power pipe: An algorithm for analysis for single-phase, steady state, pipe networks with second-degree boundary conditions

Abstract

In this paper, an algorithm is described for the resolution of pipe networks with input and output conditions defined by pressure-flowrate correlations. The procedure and the main characteristics of the software are described. The method is particularly suited for solving pipe networks with boundary conditions defined by pressure-flowrate second-degree curves and during off-design operation. The code works with single-phase compressible and incompressible flow and a variety of fluids, including steam-gas mixtures. Heat transfer is also calculated for pipe elements and controls for steam condensation in steam or steam-gas networks are present. An application to a geothermal steam network power plant is included with comparison with experimental data.