Fuzzy Method Applied at Energetic and Economic Rehabilitation of Pumping Station

2021 ◽  
Author(s):  
Victorita Radulescu
Keyword(s):  
Water Supply ◽  
Industrial Development ◽  
Treatment Plant ◽  
Single Layer ◽  
Point Of View ◽  
Economic Point ◽  
Pumping Station ◽  
Water Pumping ◽  
Pumping Stations ◽  
Double Spiral

Abstract Many pumping stations require an urgent rehabilitation from hydraulic, energetic, and economic point of view, being older than 30 years. Some urban stations for the water supply are nowadays under-dimensioned compared with the necessary consumption. Such an example is the pumping station of the Buzau City, realized in 1986. Its population has grown in the last decades by about 30% due to industrial development and its water pumping station from the treatment plant is currently totally insufficient. The hydraulic losses through the control discharge valve have become too high. This pumping station ensures the water supply for the south and east part of the city. Firstly, some characteristics of the pumping station equipped with pumps 12NDS- Normal-Double spiral casing-Single-layer of 160kW and 18NDS of 400kW and 500 kW, all from domestic production, are presented. Modernization of the pumping station has started few years ago and being realized in steps, so as not interrupt the city’s water supply. To establish the optimal operating point some algorithms are presented, developed based on the experimental data and using functions with one or two independent variables. Firstly, the interpolation function is determined, followed by its numerical calculation. To establish the characteristics’ equations H = f(Q), P = f(Q), and η = f(Q) starting from experimental results obtained by direct measurements, a polynomial approximation was chosen by the method of the least squares, using the polynomials Lagrange and Bezier. For optimization, the fuzzy technique is adopted regarding the flow fusing, intervals between start and stop following some policies concerning the aggregates’ starting. For a year, the energy saved between these intervals was calculated. Finally, the obtained yields of about 90% proved that the pumps modernization adopting new functioning techniques is more advantageous in some situations than the purchase of new equipment.

scholarly journals Optimization of Energy Consumption in the Pumping Station Supplying Two Zones of the Water Supply System

Energies ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 310
Author(s):  
Martyna Świętochowska ◽  
Izabela Bartkowska
Keyword(s):  
Energy Consumption ◽  
Water Supply ◽  
Energy Optimization ◽  
Field Tests ◽  
Supply System ◽  
Water Supply System ◽  
Pumping Station ◽  
Water Pumping ◽  
System Pressure ◽  
Pumping Stations

Water supply pumping stations are among the main energy-consuming elements in the water supply system. The energy optimization of a pumping station can significantly affect the energy consumption of a water utility. This article deals with the energy optimization of water pumping stations. The work assumes several variants of optimization of water supply pumping stations through changes in the water supply system, pressure changes in the pumping station, and modification of the number of pumps. After analyzing the network, conducting field tests, and creating a model of the water supply network, the network was calibrated in order to reproduce the existing water network as accurately as possible. Then, a variant analysis was performed, and the best optimization method for the pumping station was selected. In two variants, there was a decrease in electricity consumption; in three there, was an increase; in one, there was no change. By connecting the DMA zones and modifying the pressure in the pumping station, the energy consumption of the pumping stations was reduced. On this basis, it was found that it is possible to optimize the water pumping station by modifying the pumping station and work related to the network layout.

PSO Applied to Reduce the Cost of Energy in Water Supply Networks

2013 ◽  
Vol 409-410 ◽  
pp. 703-706 ◽  
Author(s):  
Bruno Melo Brentan ◽  
Edevar Luvizotto Jr. ◽  
Lubienska Cristina L.J. Ribeiro
Keyword(s):  
Water Supply ◽  
Extended Period ◽  
Water Supply Systems ◽  
Operational Parameters ◽  
Supply Networks ◽  
Water Pumping ◽  
Cost Of Energy ◽  
Pumping Stations ◽  
The Cost ◽  
Supply Systems

The growth of urban population and subsequent expansion of the cities impose difficulties of gather a reliable water supply systems that attend the fluctuations of demand throughout the day, and their operation with appropriate hydraulic and operational parameters. The search of better routines for water pumping stations with both starting and stopping of pumps or use of variable speed devices has become increasingly common, and the motivation of this search is found in the need for energy saving. But the task is arduous and becomes fertile field for the application of modern techniques and robust optimization. Noteworthy are currently those that seek their inspiration in nature systems, such as Particle Swarm Optimization, which is based on intelligence of groups, such as schools of fish or swarms of bee. By this way, the present work aims to contribute to the topic, developing a hybrid algorithm (simulator-optimizer) for determination of optimized routines for pumping station i.e., routines that seek the best operational routine for an extended period of 24 hours.

MODERNIZATION OF THE PUMPING STATION OF TECHNICAL WATER SUPPLY ON THE EXAMPLE OF JSC «OMSK KAUCHUK»

2021 ◽  
pp. 111-116
Author(s):  
YU. V. КОRCHEVSKAYA ◽  
◽  
I. A. TROTSENKO ◽  
E. E. NAZARKIN
Keyword(s):  
Energy Consumption ◽  
Water Supply ◽  
High Energy ◽  
Pumping Station ◽  
Operating Modes ◽  
Pumping Stations ◽  
Effi Ciency ◽  
Pumping Equipment ◽  
Inefficient Operation ◽  
Sanitation Systems

Since reducing energy consumption is a priority for an enterprise, economic effi ciency in general is directly related to the use of pumping equipment. The demand for electricity for pumping equipment will depend on various factors: the operating modes of pumping stations and installations, the equipment used measures to reduce the cost of electricity consumed, etc. The current practice indicates extremely inefficient operation of pumping equipment. Currently, a large number of pumping stations of water supply and sanitation systems operate in an uneconomical mode. Very often, this is due to incorrect selection of pumping equipment, outdated pumping equipment, the operation of pumps in non- calculation mode. In addition, pumping equipment has been installed in many industries since the establishment of production. Such equipment is morally and technically outdated. Now,technological progress allows us to use more efficient equipment and materials that allow us to reduce energy consumption. The article presents an analysis of the energy consumption of a pumping station of technical water supply on the example of JSC «Omsk Kauchuk», a variant of modernization is proposed in order to reduce the consumption of electricity by pumping equipment. The need to modernize the pumping station of technical water supply is associated with a significant service life and high –energy consumption of pumping equipment. Two pump brands were selected and a comparative analysis was carried out. Based on calculations of energy consumption and technological characteristics, the most profitable and optimal version of the D6300-80-2b pump was chosen, since the pump performance is greater and the power consumption is less than that of the JETEX DS600-750 pump, as well as reducing the wear rate of operating elements, improving the pump’s suction capacity

INFLUENCE OF MSW LANDFILLS ON DEGRADATION OF BIOGEOCENOSES OF COASTAL ZONES OF WATER COURSES AND THE BLACK SEA

2021 ◽  
pp. 117-124
Author(s):  
N. K. GUDKOVA ◽  
◽  
T. L. GORBUNOVA ◽  
N. I. МАTOVA
Keyword(s):  
Energy Consumption ◽  
Water Supply ◽  
High Energy ◽  
The Black Sea ◽  
Coastal Zones ◽  
Pumping Station ◽  
Operating Modes ◽  
Pumping Stations ◽  
Pumping Equipment ◽  
Inefficient Operation

Since reducing energy consumption is a priority for an enterprise, economic effi ciency in general is directly related to the use of pumping equipment. The demand for electricity for pumping equipment will depend on various factors: the operating modes of pumping stations and installations, the equipment used measures to reduce the cost of electricity consumed, etc. The current practice indicates extremely inefficient operation of pumping equipment. Currently, a large number of pumping stations of water supply and sanitation systems operate in an uneconomical mode. Very often, this is due to incorrect selection of pumping equipment, outdated pumping equipment, the operation of pumps in non- calculation mode. In addition, pumping equipment has been installed in many industries since the establishment of production. Such equipment is morally and technically outdated. Now,technological progress allows us to use more efficient equipment and materials that allow us to reduce energy consumption. The article presents an analysis of the energy consumption of a pumping station of technical water supply on the example of JSC «Omsk Kauchuk», a variant of modernization is proposed in order to reduce the consumption of electricity by pumping equipment. The need to modernize the pumping station of technical water supply is associated with a significant service life and high –energy consumption of pumping equipment. Two pump brands were selected and a comparative analysis was carried out. Based on calculations of energy consumption and technological characteristics, the most profitable and optimal version of the D6300-80-2b pump was chosen, since the pump performance is greater and the power consumption is less than that of the JETEX DS600-750 pump, as well as reducing the wear rate of operating elements, improving the pump’s suction capacity

Research on the Measures of Improve the Flow Pattern of the Forebay of City Intake Water Pumping Stations

2012 ◽  
Vol 170-173 ◽  
pp. 1856-1861
Author(s):  
Jian Gang Feng ◽  
Xin Li
Keyword(s):  
Flow Pattern ◽  
Water Source ◽  
Physical Models ◽  
Pump Operation ◽  
Pumping Station ◽  
Flow Recirculation ◽  
Water Pumping ◽  
Pumping Stations ◽  
Pump Inlet ◽  
Intake Water

City intake water pumping stations are restricted by bank slope conditions of water source areas and land use restrictions etc. Intake structures are difficult to be arranged in accordance with the requirements of hydraulic conditions. Therefore, adverse flow phenomena such as bias flow, recirculation and vortex are easier to generate in the forebay.The adverse flow imparts an adverse effect upon the pump inlet condition, so as to negatively influence safe operation of the pumping station. Physical models were tested according to layout characteristics of a city intake water water pumping station to research the reasons of bad flow conditions occurred in the caisson type forebay. The study found that the bottom sill in the forebay would improve the inflow pattern. The test results showed that the sump of the pumping station could effectively improve the flow pattern in the forebay and improve the efficiency of the pump operation.

scholarly journals DESIGN AND DEVELOPMENT OF THE SOFTWARE COMPLEX FOR AUTOMATIC SELECTION OF PUMPING STATIONS OF WATER SUPPLY AND FORMATION OF TECHNICAL AND COMMERCIAL PROPOSALS

2021 ◽  
pp. 105-114
Author(s):  
Дмитрий Викторович Титарев ◽  
Максим Владиславович Трунников ◽  
Павел Юрьевич Володин
Keyword(s):  
Water Supply ◽  
Flow Rate ◽  
Software Package ◽  
Design And Development ◽  
Automatic Calculation ◽  
Software Complex ◽  
Pumping Station ◽  
Calculation Of Parameters ◽  
Pumping Stations ◽  
Selection Of

Работа посвящена вопросам проектирования и разработки программного комплекса для автоматического расчета параметров и дальнейшего подбора станций водоснабжения. На основе проведенных расчетов программный комплекс позволяет формировать технико-коммерческое предложение на поставляемое оборудование. Особое внимание уделено подбору параметров насосной станции согласно данным о напоре и расходе в рабочей точке. Это является важной задачей в условиях отсутствия полноты данных, предоставляемых производителями оборудования. The work is devoted to the design and development of a software package for automatic calculation of parameters and further selection of water supply stations. Based on the calculations performed, the software package allows you to form a technical and commercial proposal for the equipment supplied. Particular attention is paid to the selection of the parameters of the pumping station according to the data on the head and flow rate at the operating point. This is an important task in the absence of completeness of data provided by equipment manufacturers.

scholarly journals The Possibility of Managed Aquifer Recharge (MAR) for Normal Functioning of the Public Water-Supply of Zagreb, Croatia

Water ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1562
Author(s):  
Hrvoje Meaški ◽  
Ranko Biondić ◽  
Jelena Loborec ◽  
Dijana Oskoruš
Keyword(s):  
Water Supply ◽  
Public Water Supply ◽  
Aquifer Recharge ◽  
Normal Functioning ◽  
Aquifer System ◽  
Groundwater Levels ◽  
Pumping Station ◽  
Water Pumping ◽  
Sava River ◽  
The Sava River

With its quantities of groundwater, the Zagreb aquifer is an irreplaceable water-supply resource that forms the basis of the water-supply of Zagreb, the capital and largest city of the Republic of Croatia. The depth of the Zagreb aquifer system is about 100 m at the deepest part, and the two main aquifers of the aquifer system can be separated vertically by low-permeable clay deposits. In the area of the Zagreb aquifer, there are several active and reserve public water-supply sites, the largest of which are Mala Mlaka and Petruševec. The groundwater level of the Zagreb aquifer is directly related to the water levels of the Sava River, so any erosive change in the Sava riverbed decreases the groundwater levels in the aquifer. In the last 50 years, the groundwater levels in the Zagreb aquifer have decreased significantly, being most pronounced in the area of the Mala Mlaka water-supply site. This has affected the normal functioning of the public water-supply because the suction baskets of the pumps in the dug wells at the Mala Mlaka water-supply site occasionally remain partially or completely in the unsaturated aquifer zone during low groundwater levels, which reduces capacity or prevents pumping from these water-supply facilities. Immediately next to the Mala Mlaka water-supply site is the Sava-Odra Canal, which was built to protect Zagreb from flooding and into which the Sava River flows when its flow rate exceeds 2350 m3/s. This reduces the flow rate of the Sava River near Zagreb and the possibility of flooding urban areas. To prevent problems with groundwater levels at the Mala Mlaka water-supply facilities and to enable normal water-supply, even in extremely dry periods, several variants of managed aquifer recharge (MAR) are proposed here. In order to determine the optimal solution for MAR and to enable the normal functioning of one of the main sites of water-supply in the Zagreb water-supply system. Groundwater flow for the period of 2006 to 2010 was simulated for six different variants of MAR. One assumes a constant potential in the Sava-Odra Canal, three are related to recharge from the Sava-Odra Canal with different backwater levels in the infiltration facility (elevations of 114, 114.5, and 115 m a.s.l.), and two with three absorption wells upstream of the Mala Mlaka water pumping station (injection of 300 L/s each and 500 L/s each). The most favorable method to recharge artificially the Zagreb aquifer near the Mala Mlaka pumping station is achieved with an infiltration facility using an elevation of 115 m a.s.l. The use of such a facility will enable the smooth operation of the water pumping station and the possibility of increasing the pumping quantities at the Mala Mlaka water pumping station for the future development of the area.

scholarly journals Assessment of the Impact of Climate Extremes on the Groundwater of Eastern Croatia

Water ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 254
Author(s):  
Marija Šperac ◽  
Jasna Zima
Keyword(s):  
Water Supply ◽  
Climate Extremes ◽  
Climatic Conditions ◽  
Point Of View ◽  
Groundwater Levels ◽  
Pumping Station ◽  
Air Temperatures ◽  
Constant Quality ◽  
The Impact

This paper analyzes the groundwater in the deep Quaternary aquifer of Eastern Croatia. These waters are collected at the Vinogradi Pumping Station (Osijek, Croatia) for the needs of public water supply. This research aimed to assess the impact of climate extremes, namely, high air temperatures and low rainfall, on the quantity and quality of groundwater. On the basis of data from the Vinogradi Pumping Station in the period 1987–2015, three extremely warm and low-water years were singled out. For these three years, the following were analyzed: climate diagrams, groundwater levels (in the piezometers closest to and farthest from the pumping station), and the quality of the affected groundwater. The results of this research indicate that the reaction of aquifers to the analyzed extreme climatic conditions for the observed period was manifested in the variation of the amplitude of groundwater levels by a maximum of 4–5 m. Considering the total thickness of the affected layers (60–80 m), this variation is not a concern from the point of view of water supply. As for the quality of groundwater, it was found to be of constant quality in its composition and was not affected by climatic extremes.

scholarly journals Verifying compliance of a metallic surface treatment company with bat requirements, to minimize emissions of pollutants in water

2019 ◽  
pp. 285-292
Author(s):  
Marius Covacs ◽  
Angelica Nicoleta Calamar ◽  
Lorand Toth ◽  
Sorin Simion ◽  
Alexandru Simion
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Iron Alloy ◽  
Water Treatment Plant ◽  
Point Of View ◽  
Metallic Surface ◽  
Advanced Technique ◽  
Economic Point ◽  
Best Available Techniques

The main activity of the studied company is treatment and coating of metals (galvanizing plating), trapping and treatment of waste water. Galvanizing consists in creating a superficial diffusion layer of iron alloy. BATs (Best Available Techniques) do not necessarily mean the most advanced technique available, but the best technique from an economic point of view for a particular installation. Results of the research relate to compliance of the industrial water treatment plant to BAT best available techniques, in order to minimize pollutants discharged into the sewerage network. Furthermore, the current paper identifies possible dysfunctional problems of the galvanizing plant and of the sewage treatment plant and makes suggestions of remedies for possible technical and organizational problems.

scholarly journals On the use of a beam infiltration water intake structure for water supply purposes

2021 ◽  
Vol 273 ◽  
pp. 04013
Author(s):  
Ruslan Shamsutdinov ◽  
Irina Trotsenko ◽  
Yulia Korchevskaya ◽  
Eduard Nazarkin
Keyword(s):  
Water Supply ◽  
Water Intake ◽  
Point Of View ◽  
Alternative Source ◽  
Local Conditions ◽  
Economic Point ◽  
Emergency Situations ◽  
Irtysh River ◽  
Type Water ◽  
The Irtysh River

The object of research in this work is the under-channel waters of the Irtysh River, considered as an alternative source of water supply, necessary for the sustainable provision of high-quality drinking water to the population of cities in emergency situations. In bacteriological and sanitary-hygienic terms, studies have shown that infiltration waters are quite safe. According to the results of the analyzes carried out, infiltration waters are mainly fresh with a salinity of 0.5 to 1 g / l. The most rational scheme from a technical and economic point of view in relation to local conditions are beam water intake structures, which is due to the relatively low thickness of water-bearing rocks. At the same time, infiltration-type water intake structures in the Irtysh river valley should be located at a distance of up to 130 m from the river channel (taking into account the value of hydraulic resistance ∆lн). The distance between wells in a linear row should be taken up to 50 m.

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