Model for Torque Estimation of Pump System with Horizontal Pipe Network

Abstract

This paper investigates the possibility of torque estimation of Centrifugal Pump System (CPS) with horizontal pipe network topology. It illustrates the concept of a model-based scheme for hydraulic system simulation. The simulation model developed for CPS takes into consideration the hydraulic properties of the pipe network based on the geometrical characteristics of a pipeline such as a length, diameter, and friction coefficient. The model allows not only to study the torque behavior for a given hydraulic system but also to implement it later for hardware-in-the-loop (HIL) simulation. Additionally, the paper provides an example of working point (WP) calculation method based on the detection of a cross section of performance and system curves of a particular CPS. All variables of the system in the current model can be changed gradually until reaching the desired values. The model helps to estimate the torque in the broad range based on the hydraulic parameters of a network and a rotational speed of a pump.