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Thursday, July 9, 2020 | History

2 edition of Optimisation of water pumping costs by hiearchical methods found in the catalog.

Optimisation of water pumping costs by hiearchical methods

M. J. H. Sterling

Optimisation of water pumping costs by hiearchical methods

by M. J. H. Sterling

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  • 13 Currently reading

Published by Leicester Polytechnic in Leicester .
Written in English


Edition Notes

StatementM.J.H. Sterling, B. Coulbeck.
SeriesComputer control of water supply, Leicester Polytechnic School of Electronic & Electrical Engineering research report -- no.2
ContributionsCoulbeck, B., Leicester Polytechnic. School of Electronic andElectrical Engineering.
ID Numbers
Open LibraryOL13831822M

  The linear programming gradient (LPG) method is applied. This method decomposes the optimisation problem into a hierarchy of two levels. On the first level an equation that gives the optimal cost of the network for any given feasible water flow is derived. Improving Pumping System Performance Acknowledgements This second edition of Improving Pumping System Performance: A Sourcebook for Industry was developed by the U.S. Department of Energy’s Industrial Technologies Program (ITP) and the Hydraulic Institute (HI).

Pumping wells play a vital role in the oasis groundwater supply; therefore, optimizing the layout of these wells is essential for water resource management. In this study, we present a novel optimization methodology that implements a genetic algorithm and nonlinear programming model for the layout of pumping . OPTIMIZING TOTAL COST OVER SYSTEM LIFE CYCLE Optimization Model Pumping system design by selecting two components, pump size and pipe diameter, based on their impact on the system life cycle. Minimize - Capital costs for purchasing and installing pump - Capital costs for purchasing and installing piping system - Operating costs due to pump.

The most important part of any pump selection is first determining the system curve. This means, at the very least, the flowrate and head that will be required of the pump must be identified. Often this is the first mistake made in the selection process. In many potable water booster stations, the flowrate is determined by a downstream demand. When we try to optimize, we either minimize (resource consumption, cost) or maximize (profit, system performance). This paper reviews optimization of water distribution systems and presents different aspects of WDSs. It also presents the different optimization methods in a detailed manner.


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Optimisation of water pumping costs by hiearchical methods by M. J. H. Sterling Download PDF EPUB FB2

a dynamic programming solution to optimization of pumping costs. Authors: MJH STERLING, B COULBECK Source: Proceedings of the Institution of Civil Engineers, Vol Issue 4, 1 Dec (–)Cited by:   M.J.H. Sterling and B. Coulbeck, “Optimization of water pumping costs by hierarchial methods”, Proceedings of the Institution of Civil Engineers 59 (2) () –Cited by: The objective is to minimize the pumping energy cost and, at the same time, the pump maintenance cost should be kept at certain levels, which is achieved by constraining the number of pump switches.

Due to the fact that pump switching is represented by a non-smooth function it is impossible to solve the resulting optimization problem by Cited by: 1. Seyed Saeed Hashemi, Massoud Tabesh, Behzad Ataeekia, Ant-colony optimization of pumping schedule to minimize the energy cost using variable-speed pumps in water distribution networks, Urban Water Journal, /X, 11, 5, (), ().Cited by: 9.

The current optimization research in the context of water supply management focuses on the spatial layout of pumping wells, while considering their number and rates [10,11].In most of the earlier well layout studies, optimization model was built by using the number of pumping wells as the decision variable and using the economic benefit as the objective function; furthermore, the ecological Cited by: 2.

Optimisation of the operation of water distribution systems has been an active research field for almost half a century. It has focused mainly on optimal pump operation to minimise pumping costs and Optimisation of water pumping costs by hiearchical methods book water quality management to ensure that standards at customer nodes are met.

In the paper, the authors propose algorithms based on a combination of genetic and direct search methods such as the Hooke and Jeeves method and the Fibonacci method for solving the pumping cost minimization problem.

It is demonstrated that the hybrid methods are superior to the pure genetic algorithm in finding a good solution quickly when applied to both a test problem and a.

A method based on nonlinear programming for determining the optimal operation of general water distribution systems containing multiple sources and reservoirs is presented. The problem is formulated and solved so that, given the forecasted demands for the coming 24 hours, the initial and final conditions in the reservoirs, the unit and maximum demand electricity charge, and the constraints in.

Optimization in Water Pumping Systems SA Armstrong Limited 23 Bertrand Avenue Toronto, ON M1L 2P3 efficient and least used method of flow control. • Throttling control does save energy and it is capable of saving 7% in pump costs and 14% in energy costs.

WATER SYSTEM OPTIMIZATION: CONCEPTS AND METHODS SYSTEMS DEFINITIONS Engineering project design and optimization can be effectively approached using concepts of systems analysis. A system can be thought of as a set of components or processes that transform resource inputs into product (goods and services) outputs.

Plant procurement costs generally amount to a small proportion of the total pump investment cost of a plant. Pump flow can be controlled in steps, discrete flow regulation or smoothly, continuous flow regulation or infinitely variable flow regulation.

Combinations of the two methods are also used. The paper describes the use of hierarchical methods of optimization of pumping in water supply systems. Particular attention has been paid to formulation of performance indices which will allow.

Existing and impending water shortages argue for improving water quantity and quality management. Groundwater Optimization Handbook: Flow, Contaminant Transport, and Conjunctive Management helps you formulate and solve groundwater optimization problems to ensure sustainable supplies of adequate quality and quantity.

It shows you how to more effectively use simulation-optimization (S-O. The book begins with basic concepts such as the types of pumps used in the industry; the properties of liquids; the performance curve; and the Bernoullis equation. It then looks at the factors that affect pump performance and the various methods of calculating pressure loss in piping systems.

Optimization of the Pumping and Disinfection of a Real Water Supply System", Journal of Water Resources Planning and Management, (4), [2] Lopez-Ibanez, M., Prasad, D.T., Paechter, B., (), "Ant colony optimization for optimal control of pumps in water distribution networks", Journal of water resources planning and management.

An optimization procedure is required which will generate 24 hour control schedules taking account of: control actions, system dynamics, physical constraints, and operating costs. Optimization techniques include dynamic programming, for single reservoir systems, and combined hierarchical methods, for multi-source multi-reservoir systems.

The optimization methods applicable to this kind of problem must cater for high dimensionality as well as constraints on both states and controls. This work deals with the development of a programme for optimization of the operation in the network of Barcelona, through the use of a projected conjugate gradient method.

Water supply systems need to be designed in an efficient way, accounting for both construction costs and operational energy expenditures when pumping is required.

Since water demand varies depending on the moment’s necessities, especially when it comes to agricultural purposes, water supply systems should also be designed to adequately handle this. Distribution Network ~ hI h= ~h(x,qp,d) p ~ qr = ~q(x,qp,d) Water Demands PM (d 1 d• l' •., dw) qpM h Mth Water sM Mth Pump - Source Station h pM Fig.

] System operation structure Evaluation of the optimal UPPER LEVEL trajectories of the reservoirs x(k) Optimal cost of a state transfer: P{x{k),q (k» qr{k) r Evaluation of ~{x{k),q (k» r l.

and water booster pumping stations in potable water distribution systems. SCOPE. Criteria is provided for pumping units operating as components in distribution systems. Guidance is provided for sizing and selection of pumps and pump drives, piping, control valving, flow metering, pump station structures, and operational features.

A new computer program can assist engineers, water utility managers, and pump station operators in selecting the most cost-effective combination of pumps to meet a specific system requirement over.In the previous chapter, the methods available for assessing the productivity and efficiency of a well were illustrated.

However, a water supply system extends beyond the aquifer-well system, and.The pumps in multistage drainage pumping stations are often subject to frequent start-up and shutoffs during operation because of unreasonable start-up depths of the pumps; this will reduce the service lives of the pumps.

To solve this problem, an optimization method for minimizing pump start-up and shutoff times is proposed. In this method, the operation of pumps in pumping station was.