scholarly journals Reconstruction of the suction pipeline with a change in the bell of electrified the pumping stations of the Volga irrigation system

2020 ◽  
pp. 81-84
Author(s):  
Fyarid Kinzhaevich, Abdrazakov ◽  
Denis Vladimirovich Logashov ◽  
Andrey Alekseevich Rukavishnikov
Keyword(s):  
Irrigation System ◽  
Original Version ◽  
System Operation ◽  
Water Losses ◽  
Efficient Operation ◽  
Pumping Station ◽  
Irrigation Channel ◽  
Suction Pipe ◽  
Pumping Stations ◽  
Large Water

The article deals with the actual problems of the Volga irrigation system that arise during operation, related to large water losses in the irrigation channel, cavitation and permanent blockages of the suction pipe. The analysis of the system operation revealed significant shortcomings of the pumping station that prevent efficient operation. Solutions for optimization of pumping stations that supply water to irrigation fields are structurally developed and presented. The main advantages of reconstruction of the suction pipe with a pipeline based on the original version are described.

Avoiding Sedimentation and Air Entrainment in Pump Sump for Wet Pit Pumping Stations

2015 ◽  
Author(s):  
Raja Abou Ackl ◽  
Andreas Swienty ◽  
Flemming Lykholt-Ustrup ◽  
Paul Uwe Thamsen
Keyword(s):  
Physical Model ◽  
Air Entrainment ◽  
Flow Patterns ◽  
Operating Conditions ◽  
Design Criteria ◽  
Flow Conditions ◽  
Pumping Station ◽  
Pumping Stations ◽  
Pump Sump ◽  
Pump Stations

In many places lifting systems represent central components of wastewater systems. Pumping stations with a circular wet-pit design are characterized by their relatively small footprint for a given sump volume as well as their relatively simple construction technique [1]. This kind of pumping stations is equipped with submersible pumps. These are located in this case directly in the wastewater collection pit. The waste water passes through the pump station untreated and loaded with all kind of solids. Thus, the role of the pump sump is to provide an optimal operating environment for the pumps in addition to the transportation of sewage solids. Understanding the effects of design criteria on pumping station performance is important to fulfil the wastewater transportation as maintenance-free and energy efficient as possible. The design of the pit may affect the overall performance of the station in terms of poor flow conditions inside the pit, non-uniform und disturbed inflow at the pump inlet, as well as air entrainment to the pump. The scope of this paper is to evaluate the impact of various design criteria and the operating conditions on the performance of pump stations concerning the air entrainment to the pump as well as the sedimentation inside the pit. This is done to provide documentation and recommendations of the design and operating of the station. The investigated criteria are: the inflow direction, and the operating submergence. In this context experiments were conducted on a physical model of duplex circular wet pit wastewater pumping station. Furthermore the same experiments were reproduced by numerical simulations. The physical model made of acrylic allowed to visualize the flow patterns inside the sump at various operating conditions. This model is equipped with five different inflow directions, two of them are tangential to the pit and the remaining three are radial in various positions relative to the pumps centerline. Particles were used to enable the investigation of the flow patterns inside the pit to determine the zones of high sedimentation risk. The air entrainment was evaluated on the model test rig by measuring the depth, the width and the length of the aerated region caused by the plunging water jet and by observing the air bubbles entering the pumps. The starting sump geometry called baseline geometry is simply a flat floor. The tests were done at all the possible combinations of inflow directions, submergence, working pump and operating flow. The ability of the numerical simulation to give a reliable prediction of air entrainment was assessed to be used in the future as a tool in scale series to define the scale effect as well as to analyze the flow conditions inside the sump and to understand the air entrainment phenomenon. These simulations were conducted using the geometries of the test setup after generating the mesh with tetrahedral elements. The VOF multiphase model was applied to simulate the interaction of the liquid water phase and the gaseous air phase. On the basis of the results constructive suggestions are derived for the design of the pit, as well as the operating conditions of the pumping station. At the end recommendations for the design and operating conditions are provided.

scholarly journals OST WATER VOLUME IN WATER SUPPLY SYSTEM, IN NORTH AND CENTRAL WEST REGION

2018 ◽  
Vol 15 (30) ◽  
pp. 497-503
Author(s):  
A. B. dos SANTOS ◽  
É. C. DIAS ◽  
G. P. C. da SILVA ◽  
R. P. RIBEIRO ◽  
A. M. SILVA
Keyword(s):  
Water Supply ◽  
Service Providers ◽  
Supply System ◽  
Water Supply System ◽  
Water Volume ◽  
Water Supply Systems ◽  
Water Losses ◽  
Efficient Operation ◽  
The North ◽  
West Region

Due to the events of the last years, when, mainly the Southeast region of Brazil has experienced one of the worst periods of water shortage, there has been a process of national awareness for the need of care with the quality and quantity of water. Therefore, currently in the national and world scenario is seeking to minimize the waste of water, acting mainly in the water supply systems, which have the highest loss rates of this liquid. In this way, the objective is to determine the volume of water (1000m³/year) wasted in SAA (Water Supply System), based on the amount of water produced and consumed in the North and Central-West region of Brazil and, from this, compare the losses in those regions, for the year 2015. Based on the analysis of the datas, it was verified that the water supply in the North and Central-West regions presented high losses rates, 43% and 37%, respectively. Actions such as maintenance of sanitary fittings and elimination of leaks in the residence, more efficient operation and maintenance of the system and improvement in the commercial management of service providers, are measures to combat and reduce water losses.

scholarly journals Comparative Study of Different Irrigation System for Cotton Crop in District Rahim Yar Khan, Punjab, Pakistan

2020 ◽  
Vol 8 (2) ◽  
pp. 131-138
Author(s):  
Muhammad Yousaf Ali
Keyword(s):  
Root Zone ◽  
Growth Parameters ◽  
Irrigation System ◽  
Plant Root ◽  
Maximum Yield ◽  
Sprinkler Irrigation ◽  
Water Saving ◽  
Limiting Factors ◽  
Water Losses ◽  
Day By Day

The biggest responsibility of agriculture department is to produce food and cloth for huge population using the resource getting limited day by day. Water scarcity is most threatening among these limiting factors. New techniques are being developed day by day to utilize the water efficiently. Application of water only in the plant root zone will be one of the water saving technique to grow crops. This will control the losses due to evaporation and leaching. Irrigation to soil does not control the climate variables and precipitation cannot be substituted to irrigation. Sprinkler irrigation could be one of the way to utilize the water efficiently by in time application and reducing the losses of leaching and evaporation along with amelioration of micro climate of the crop. Canals and tube well water is conventionally given to crop through flood irrigation. These fields are in direct threat of evaporation and leaching resulting in excess water losses and damaging the soil quality. The study was designed taking cotton as experimental crop to calculate comparisons in plant growth parameters and yields along with water saving ability of different irrigation system. Maximum yield was obtained from sprinkler irrigation and water was saved under drip irrigation system.

Design of Hydraulic Station of Crawler Hydraulic Drilling Rig

2014 ◽  
Vol 889-890 ◽  
pp. 380-384
Author(s):  
Zhi Liu ◽  
Peng Fang ◽  
Di Wu ◽  
Dong Li
Keyword(s):  
Design Process ◽  
Structural Design ◽  
Control Technique ◽  
Pumping Station ◽  
Drilling Rig ◽  
Pumping Stations ◽  
Hydraulic Station ◽  
Scheme Selection ◽  
And Control

This article describes the design process of pumping stations of crawler full hydraulic drilling rig. The principle of full hydraulic drilling rig pumping station,scheme selection, hydraulic components selection and structural design of the tank were presented. The system used double loops in which some advanced hydraulic components and control technique were adopt.

INSENSIBLE WATER LOSS IN LOW BIRTH WEIGHT INFANTS

PEDIATRICS ◽  
1972 ◽  
Vol 50 (2) ◽  
pp. 236-245 ◽  
Author(s):  
Avroy A. Fanaroff ◽  
Michael Wald ◽  
Howard S. Gruber ◽  
Marshall H. Klaus
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Water Loss ◽  
Thermal Environment ◽  
Heat Shield ◽  
Low Birth Weight Infants ◽  
Water Losses ◽  
Large Water

Insensible water loss (IWL) was determined from measurements of insensible weight loss during the first 7 weeks of life on 30 immature and nine small-for-gestational age, low birth weight infants. Under standard conditions (single-walled incubator, infant nude, gavage feeding), 10 infants with birth weights less than 1,250 gm, gestational age < 230 days (32 weeks) and postnatal age <10 days lost >2.5 gm/kg/hr (equivalent to 60-120 ml/kg/day), considerably higher than previously reported. Studies following the insertion of a plastic heat shield revealed a 25% reduction in IWL. The heat shield facilitates achievement of neutral thermal environment and reduced water losses in low birth weight infants. IWL measurements in infants with birth weights >1,500 gm and those small-for-gestational age were similar to previously reported studies. Because of the known limited ability of small immature infants to increase metabolic rate, these extremely high losses are believed to represent disproportionately larger water losses from skin. Skin factors predisposing to large water loss in immature infants include thinner epidermis, increased water content, and increased permeability.

PUMPING STATION AND STAMPING MACHINE FOR THE PRODUCTION OF RADIATION SOURCES

2021 ◽  
pp. 46-51
Author(s):  
S. A. Mikaeva ◽  
A. S. Mikaeva ◽  
A. A. Dyukin
Keyword(s):  
Electrical Equipment ◽  
Production Volume ◽  
Automated Control ◽  
Working Pressure ◽  
Pumping Station ◽  
Equipment Operation ◽  
Pumping Stations ◽  
Radiation Sources ◽  
Equipment Configuration ◽  
Technical Solutions

The article describes a five-lamp pumping station and a semi-automatic stamping machine for the production of bactericidal ultraviolet lamps. Standard methods of production and testing of pumping stations and stamping machines were analyzed. In the course of work and on the basis of the conducted research, the technical characteristics and equipment configuration were worked out. The pumping station is designed for processing simultaneously five products that will later be bactericidal ultraviolet lamps, including: decontamination of products, oxidation of electrodes, filling products with a gas mixture to the working pressure, loading amalgam and desoldering. This equipment ensures the fulfillment of the production volume for the production of bactericidal lamps. When designing and manufacturing electrical equipment, components from the world's leading manufacturers are used. The use of high-quality materials can significantly increase the efficiency of equipment operation. The latest technical solutions combined with a well-thought-out design make it possible to successfully integrate this equipment into integrated automated control systems.

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.

Effectiveness of the electric fish fence as a behavioural barrier at a pumping station

2019 ◽  
Vol 70 (10) ◽  
pp. 1459 ◽  
Author(s):  
Leonhard Egg ◽  
Joachim Pander ◽  
Melanie Mueller ◽  
Juergen Geist
Keyword(s):  
Electric Fish ◽  
Pumping Station ◽  
Adaptive Resolution ◽  
Pumping Stations ◽  
Promising Solution ◽  
Resolution Imaging ◽  
Imaging Sonar ◽  
New Generation ◽  
Mean Current ◽  
High Fish

Dyke-based pumping stations have been linked with high fish mortalities during pumping events. Behavioural barriers like electric fish fences have been proposed as a promising solution to prevent entrainment of fish into pumps. In order to test the effectiveness of such barriers, the intake of a pumping station was equipped with a new generation electric fish fence while fish behaviour was observed with an adaptive resolution imaging sonar (ARIS) during non-electrified (reference) and electrified (treatment) operation modes. This study revealed the functionality of the fish fence as a behavioural barrier, with a fish turning rate of up to 72% at a mean water temperature of 4.3°C and a mean current velocity of 0.05ms–1. These field results suggest that new-generation electric fish fences may be a promising solution to reduce the effects of pumping stations on fish.

scholarly journals An artificial intelligence approach for optimizing pumping in sewer systems

2011 ◽  
Vol 13 (3) ◽  
pp. 295-306 ◽  
Author(s):  
S. Ostojin ◽  
S. R. Mounce ◽  
J. B. Boxall
Keyword(s):  
Optimal Solution ◽  
Cost Savings ◽  
Real Data ◽  
Base Case ◽  
Energy Costs ◽  
Pumping Station ◽  
Sewer Systems ◽  
Pumping Stations ◽  
Potential Benefits ◽  
The University

This paper presents details of a fuzzy logic system developed for the control of sewer pumping stations for energy costs savings. This is part of an ongoing collaborative project between Anglian Water and the University of Sheffield. The model rules and operation are developed for one representative pumping station in order to enable the identification of potential benefits and inhibitors to Anglian Water. Results are included that demonstrate the potential for energy cost-savings by application to a single pumping station for dry weather flow conditions and through comparison to current on/off switching rules. The fuzzy system is shown to be robust to changes in flow pattern (using both modelled inflow data and real data from a flow survey), but sensitive to changes in price structures. Application of a genetic algorithm (GA) search technique was used to adjust the parameters that define the membership functions in the fuzzy rules, in order to provide automated minimization of the energy costs towards an optimal solution. The GA system is shown to be transferable to another pumping station with different pump sizes, wet well capacity and inflow pattern. The GA solution outperformed the base case in terms of energy costs and switching totals.

scholarly journals Methodological analysis for assessing the relation of the energy cost with losses of water – a case study

2021 ◽  
Vol 10 (12) ◽  
pp. e199101220265
Author(s):  
Matheus Gonçalves Silqueira ◽  
Fernando das Graças Braga da Silva ◽  
Alex Takeo Yasumura Lima Silva ◽  
Claudio Abiar Lourenço
Keyword(s):  
Energy Consumption ◽  
Treatment Plant ◽  
Electrical Energy ◽  
Field Trials ◽  
Energy Costs ◽  
Water Losses ◽  
System Diagnosis ◽  
Efficiency Measures ◽  
Pumping Stations

The rational use of energy is being increasingly encouraged. In some countries, there are even subsidies for industries to adopt energy efficiency measures. One of the sectors with great opportunities for efficiency is sanitation, where a large part of energy consumption refers to pumping stations. The objective of this work is to demonstrate the consumption of electrical energy and possible reduction of electrical energy consumption in a sector of study of the Autonomous Water and Sewage Service (SAAE) of the municipality in the south of Minas Gerais. To determine the measures to be taken to reduce energy costs, it is necessary to perform a system diagnosis. For this, field trials were carried out. The study sector had an average expense of R$ 42,097.44/year due to water losses in the system. When considering only electricity costs, they represent 34.20% of the costs in relation to water losses (R$ 14,395.90/year). The system presented 27.73% of total water losses, an energy consumption of 0.6627 kWh/m³ only for the R3 pumping station and 1.302 kWh/m³ when also considering the Water Collection and Treatment Plant (WTP).

Sign in / Sign up

Export Citation Format

Share Document