TITLE:
Pressure-Driven Demand and Leakage Simulation for Pipe Networks Using Differential Evolution
AUTHORS:
Naser Moosavian, Mohammad Reza Jaefarzadeh
KEYWORDS:
Hydraulic Analysis; Differential Evolution; Optimization Mode
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.1 No.3,
November
5,
2013
ABSTRACT: Traditional techniques for
hydraulic analysis of water distribution networks, which are referred to as demand-driven simulation method
(DDSM), are normally
analyzed under the assumption that nodal demands are known and satisfied. In
many cases, such as pump
outage or pipe burst, the demands at nodes affected by low pressures will
decrease. Therefore, hydraulic analysis of pipe networks under deficient
pressure conditions using conventional DDSM may cause large deviation from
actual situations. In this paper, an optimization model is introduced for hydraulic analysis of water
distribution networks using a meta-heuristic method called Differential
Evolution (DE) algorithm. In this methodology, there is no need to solve linear
systems of equations, there is a simple way to handle pressure-driven demand
and leakage simulation, and it does not require an initial solution vector which
is sometimes critical to the convergence. Also, the proposed model does not
require any complicated mathematical expression and operation.