scholarly journals Optimization Methodology for Estimating Pump Curves Using SCADA Data

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 586
Author(s):  
Elad Salomons ◽  
Uri Shamir ◽  
Mashor Housh
Keyword(s):  
Distribution Systems ◽  
Water Distribution ◽  
Field Tests ◽  
Small Range ◽  
Pumping Station ◽  
Pumping Stations ◽  
Long Time ◽  
Optimization Methodology ◽  
Relationship Of

Water distribution systems (WDSs) deliver water from sources to consumers. These systems are made of hydraulic elements such as reservoirs, tanks, pipes, valves, and pumps. A pump is characterized by curves which define the relationship of the pump’s head gain and efficiency with its flow. For a new pump, the curves are provided by the manufacturer. However, due to its operating history, the performance of a pump deteriorates, and its curves decline at an estimated rate of about 1% per year. Pump curves are key elements for planning and management of WDSs and for monitoring system efficiency, to determine when a pump should be rehabilitated or replaced. In practice, determining pump curves is done by field tests, which are conducted every few years. This leaves the pump’s performance unmonitored for long time periods. Moreover, these tests often cover only a small range of the curves. This study demonstrates that in the era of IoT and big data, the data collected by Supervisory Control And Data Acquisition (SCADA) systems can be used to continuously monitor pumps’ performance and derive updated pump characteristic curves. We present and demonstrate a practical methodology to estimate fixed and variable speed pump curves in pumping stations. The proposed method can estimate individual pump curves even when the measurements are given only for the pumping station as a whole (i.e., total flow, pumping station head gain). The methodology is demonstrated in a real-world case study of a pumping station in southern Israel.

A Study of the Technique for Assessment of Locations and Conditions of the Underground Pipeline: Case Study for Nakhon Pathom Province, Thailand

2020 ◽  
Vol 897 ◽  
pp. 231-238
Author(s):  
Saran Sirisuraphong ◽  
Sunee Duangnet ◽  
Chalida U-Tapao
Keyword(s):  
Distribution Systems ◽  
Water Distribution ◽  
Underground Pipeline ◽  
Advantages And Disadvantages ◽  
Quality Of Water ◽  
Pipeline Systems ◽  
Long Time ◽  
Flow Through ◽  
Ground Penetrating

Underground pipeline systems in Thailand have been used for a long time. Lack of maintenances and longtime using cause a lot of damages. The water distribution systems are affected by the quality of water from contaminations and the quantity of water from leaking. As well as the sewer systems may flow through and contaminate the groundwater. Due to the long period of time of using underground pipeline systems, the verification of the underground location is need before testing the conditions of the systems with undisturbed area methods. This study focuses on the collection of the underground utilities locating methods and the conditions assessment methods. We also apply one suitable method for our case study area which is Nakhon Pathom province, Thailand. The results show the collection of methods to verify the underground location and conditions systems as well as the advantages and disadvantages of each method. Results also describe about conventional CCTV with push-rod camera for assessing underground pipeline systems for Nakhon Pathom province and the locations verification is fitted with ground penetrating radar, infrared thermography and acoustic location system. The design of a mobile robot to be flexible according to the pipe size and the creation of a computer program that can analyze the most suitable methods for examining buried pipes is a good option for further expansion in the future.

Energy and Emissions Assessment in Pumping Water Distribution Systems: Case Study—Colorado River–Tijuana Aqueduct

2011 ◽  
Author(s):  
Margarita Gil Samaniego Ramos ◽  
He´ctor Enrique Campbell Rami´rez
Keyword(s):  
Distribution Systems ◽  
Water Distribution ◽  
Colorado River ◽  
Electricity Consumption ◽  
Parallel Line ◽  
Hydraulic Facility ◽  
Pumping Stations ◽  
Optimal Efficiency ◽  
Current Energy

The northwestern portion of the Mexican territory has a semiarid climate with scarce rains and no reliable water supply sources. The cities of Tijuana, Tecate and Rosarito, Baja California, Mexico, are located within this zone and depend on the Ri´o Colorado–Tijuana Aqueduct to fulfill approximately 90% of its water demand. This large hydraulic facility is 147 km long and elevates 4.0 m3/s of water at a height of 1,060 m. It is composed of 6 pumping stations with a total installed motor capacity of 79,500 hp. At this time the capacity of the aqueduct is being increased to 5.33 m3/s by means of installing an additional pump to each pumping station and a 54″ parallel line. The motor capacity increase will be of 26,500 hp. In 2009, its electricity consumption was of 433,589 MWh at a cost of $29,494,630 USD. Emissions to the atmosphere associated to this electricity consumption were calculated to be: 73 tonnes of SO2, 73 tonnes of NOx and 116,467 tonnes of CO2. This paper presents the methodology used to evaluate the potential savings of electricity and emissions and recommends alternatives to decrease its current energy consumption. Results obtained show that 35,949 MWH at a cost of $2,762,300 USD can be saved annually if the equipment performance were at its optimal efficiency. Emissions to the atmosphere avoided would be of 9,656 tonnes of CO2, 6 tonnes of SO2 and 17 tonnes of NOx.

scholarly journals Efficient optimization of pump scheduling for reduction of energy costs and Greenhouse gas emissions

2019 ◽  
Vol 17 (12.1) ◽  
pp. 5
Author(s):  
Đại Phạm Đức ◽  
Tỉnh Phạm Văn
Keyword(s):  
Greenhouse Gas ◽  
Energy Cost ◽  
Distribution Systems ◽  
Water Distribution ◽  
High Efficiency ◽  
Greenhouse Gas Emission ◽  
Cost Savings ◽  
Pumping Station ◽  
Pumping Stations ◽  
Pump Scheduling

Optimal pump scheduling has been applying to decrease operating costs of water distribution systems (WDSs). However, the operations of pumping stations will result in an increase of Greenhouse gas emission (GHG). To reduce GHG, pumping stations should be operated with high efficiency. For this reason, optimal pump cheduling should take into account both energy cost savings and pumping station efficiency. The aim of this article is to suggest an efficient multi-objective optimization solution or minimizing pumping energy cost and maximizing pumping station efficiency. As a result, a trade-off solution compromising pumping energy cost and pumping system efficiency will be achieved. The Genetic Algorithm (GA) combined with a WDS simulator, EPANET will be applied to solve the pump scheduling problem in one benchmark WDS and the results from our solution will be compared to the ones in the literature in terms of pumping energy cost and efficiency.

Dynamic virtual infrastructure benchmarking: DynaVIBe

2010 ◽  
Vol 10 (4) ◽  
pp. 600-609 ◽  
Author(s):  
R. Sitzenfrei ◽  
S. Fach ◽  
M. Kleidorfer ◽  
C. Urich ◽  
W. Rauch
Keyword(s):  
Case Studies ◽  
Distribution Systems ◽  
Water Distribution ◽  
New Technologies ◽  
Study Data ◽  
Data Availability ◽  
Urban Structure ◽  
Real World Data ◽  
Virtual Infrastructure

In environmental engineering, identification of problems and their solutions as well as the identification of the relevant processes involved is often done by means of case study analyses. By researching the operation of urban drainage and water distribution systems, this methodology is suited to evaluate new technologies, strategies or measures with regard to their impact on the overall processes. However, data availability is often limited and data collection and the development of new models are both costly and time consuming. Hence, new technologies, strategies or measures can only be tested on a limited number of case studies. In several environmental disciplines a few virtual case studies have been manually developed to provide data for research tasks and these are repeatedly used in different research projects. Efforts have also been invested in tackling limited data availability with the algorithmic generation of virtual case studies having constant or varying boundary conditions. The data provided by such tools is nevertheless only available for a certain instance in time. With DynaVIBe (Dynamic Virtual Infrastructure Benchmarking), numerous virtual case studies are algorithmically generated with a temporal development of the urban structure (population and land use model) and infrastructure. This provides a methodology that allows for the analysis of future scenarios on a spatio-temporal city scale. By linking a population model with DynaVIBe's infrastructure models, socio-economics impacts on infrastructure and system coherences can be investigated. The problematic of limited case study data is solved by the algorithmic generation of an unlimited number of virtual case studies, which are dynamic over time. Additionally, this methodology can also be applied on real world data for probabilistic future scenario analysis.

scholarly journals Energy and Cost Savings through Pumping Stations Rehabilitation. Case Study in Bucharest

Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 593
Author(s):  
Sorin Perju ◽  
Alexandru Aldea
Keyword(s):  
Water Distribution ◽  
Energy Savings ◽  
Distribution Network ◽  
Cost Savings ◽  
Water Distribution Network ◽  
Water Network ◽  
Water Losses ◽  
Pumping Stations ◽  
Technical Solutions

This paper presents the results recorded by upgrading and rehabilitating the pumping stations for an urban water network with a primary goal of diminishing the operation and maintenance costs and a secondary goal of reducing the water losses in the water distribution network. The adopted technical solutions within the structural and functional modifications of the pumping stations have led to both the improvement of hydraulic parameters of the pumping stations and also the improvement of registered energy consumption. The undertaken modifications and transformations within the pumping stations led to significant energy savings and at the same time to important water losses reductions within the distribution network.

scholarly journals Management of Water Distribution Systems in PDA Condition with Isolation Valves

Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 672 ◽  
Author(s):  
Attilio Fiorini Morosini ◽  
Olga Caruso ◽  
Paolo Veltri
Keyword(s):  
Distribution Systems ◽  
Water Distribution ◽  
Distribution Networks ◽  
Optimal Number ◽  
System Control ◽  
Pipe Failure ◽  
Reliable System ◽  
Network Nodes ◽  
Pipe Burst

The correct management of Water Distribution Networks (WDNs) allows to obtain a reliable system. When a pipe failure occurs in a network and it is necessary to isolate a zone, it is possible that some nodes do not guarantee service for the users due to inadequate heads. In these conditions a Pressure Driven Analysis (PDA) is the correct approach to evaluate network behavior. This analysis is more appropriate than the Demand Driven Analysis (DDA) because it is known that the effective delivered flow at each node is influenced by the pressure value. In this case, it is important to identify a subset of isolation valves to limit disrupting services in the network. For a real network, additional valves must be added to existing ones. In this paper a new methodological analysis is proposed: it defines an objective function (OF) to provide a measure of the system correct functioning. The network analysis using the OF helps to choose the optimal number of additional valves to obtain an adequate system control. In emergency conditions, the OF takes into account the new network topology obtained excluding the zone where the broken pipe is located. OF values depend on the demand deficit caused by the head decrement in the network nodes for each pipe burst considered. The results obtained for a case study confirm the efficiency of the methodology.

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