Open Access. Powered by Scholars. Published by Universities.®

Water Resource Management Commons™

Open Access. Powered by Scholars. Published by Universities.®

City University of New York (CUNY)

Discipline
Keyword
Publication Year
Publication
Publication Type

Articles 361 - 390 of 518

Full-Text Articles in Water Resource Management

Hydrodynamic Simulations Of Vacuum-Driven Storage Tanks, Maciej Mrowiec, Oliwia Kochanska Aug 2014

Hydrodynamic Simulations Of Vacuum-Driven Storage Tanks, Maciej Mrowiec, Oliwia Kochanska

International Conference on Hydroinformatics

As a result of urbanization, stormwater runoff flow rates and volumes are significantly increased due to increasing impervious land cover and the decreased availability of depression storage. Storage tanks are the basic devices to efficiently control the flow rate in drainage systems during wet weather. Presented in the paper conception of vacuum-driven detention tanks allows to increase the storage capacity by usage of space above the free surface water elevation at the inlet channel. Partial vacuum storage makes possible to gain cost savings by reduction of both the horizontal area of the detention tank and necessary depth of foundations. Simulation …

Go to article

Swmm5-Ea – A Tool For Learning Optimization Of Urban Drainage And Sewerage Systems With Genetic Algorithms, Assela Pathirana Aug 2014

Swmm5-Ea – A Tool For Learning Optimization Of Urban Drainage And Sewerage Systems With Genetic Algorithms, Assela Pathirana

International Conference on Hydroinformatics

In spite of the developments in the application of evolutionary algorithms in the urban water sector, it is not widely used by practitioners in their day to day work. A reason for this underutilization is the lack of accessible optimization tools. The available limited options, on the one extreme, are characterized by tools for very specific applications (e.g. pipe sizing): While these provide useful optimization applications in specific domains, they are too restrictive in the range of application. The other extreme is to `glue-together’ a general purpose EA library and other required algorithms (e.g. an urban drainage simulation model) using …

Go to article

A Simulation-Optimization Model For Optimal Estimation Of The Locations And Chlorine Injection Rates Of The Booster Stations In Water Distribution Networks, Serife Gokce, Tamer Ayvaz Aug 2014

A Simulation-Optimization Model For Optimal Estimation Of The Locations And Chlorine Injection Rates Of The Booster Stations In Water Distribution Networks, Serife Gokce, Tamer Ayvaz

International Conference on Hydroinformatics

The main objective of this study is to present a simulation-optimization model to determine the locations and disinfectant injection dosages of the booster stations for maintaining the disinfectant residual limits in drinking water distribution networks. The proposed model accomplishes this task by utilizing the global exploration feature of the Differential Evolution (DE) optimization algorithm. The objective of the DE based optimization model is to maximize an aggregated objective function value which includes two conflicting objectives. While the first objective aims to maximize the percentage of water within the specified residual limits, the second one deals with the minimization of the …

Go to article

Considering The Effect Of Uncertainty And Variability In The Synthetic Generation Of Influent Wastewater Time Series, Mansour Talebizadehsardari, Evangelia Belia, Peter A. Vanrolleghem Aug 2014

Considering The Effect Of Uncertainty And Variability In The Synthetic Generation Of Influent Wastewater Time Series, Mansour Talebizadehsardari, Evangelia Belia, Peter A. Vanrolleghem

International Conference on Hydroinformatics

The availability of influent wastewater time series is crucial for assessing the performance of a wastewater treatment plant (WWTP) under dynamic flow and loading conditions. Given the difficulty of collecting sufficient data, synthetic generation may be the only option. Usually, the main constituents of the influent time series (e.g. flow, COD, TSS, TKN) show periodic, auto-correlation, and cross-correlation structures in time. Therefore researchers have used statistical models (e.g. auto-regressive time series models) for random generation of the influent time series. However, these regular patterns in time could be significantly distorted during rain events (wet weather flow (WWF) conditions) in which …

Go to article

Reducing The Risk Of Floods In Urban Areas With Combined Inland-River System, Young-Il Moon, Jong-Suk Kim Aug 2014

Reducing The Risk Of Floods In Urban Areas With Combined Inland-River System, Young-Il Moon, Jong-Suk Kim

International Conference on Hydroinformatics

With the change of the water environment in accordance with climate change, the loss of lives and properties has increased due to urban flood. Although the importance of urban floods has been highlighted quickly, the construction of advancement technology of an urban drainage system combined with inland-river water and its relevant research has not been emphasized in Korea. In addition, without operation in consideration of combined inland-river water, it is difficult to prevent urban flooding effectively. This study, therefore, develops the uncertainty quantification technology of the risk-based water level and the assessment technology of a flood-risk region through a flooding …

Go to article

Development Of A Repository For Hydrologic Model Uncertainty Data, Elius Etienne, Michael Piasecki Aug 2014

Development Of A Repository For Hydrologic Model Uncertainty Data, Elius Etienne, Michael Piasecki

International Conference on Hydroinformatics

Hydrologic processes are complex and when modeling them using a deterministic or stochastic approach one invariably introduces errors because of simplifications and assumptions made. However, not all assumptions and simplifications in the approach chosen produce the amount of errors; in fact the impact of deviations from the truth on a final output set of variables varies greatly. In addition, not every catchment behaves alike adding another layer of complexity to the modeling effort. Hence, every approach exhibits a degree of uncertainty in their results. While this uncertainty can be examined systematically in this technical note we focus on the development …

Go to article

Practical Application Of Pressure-Dependent Epanet Extension, Alemtsehay G. Seyoum, Tiku T. Tanyimboh Aug 2014

Practical Application Of Pressure-Dependent Epanet Extension, Alemtsehay G. Seyoum, Tiku T. Tanyimboh

International Conference on Hydroinformatics

Hydraulic models have been widely used in the design and operation of water distribution system (WDSs). The models enable planning for possible changes in the system under a wide range of conditions. Under abnormal operating condition, for instance, WDSs become pressure deficient and unable to satisfy demand fully. In such circumstances, pressure dependent models are suitable to quantify the shortfall in flow and pressure accurately for crucial decision-making. Most recently, a pressure dependent extension of the renowned EPANET hydraulic simulator was developed to enable modelling of pressure deficient networks. The model has an integrated pressure dependent demand (i.e. nodal flow) …

Go to article

Cawat – A Catchment Water Allocation Tool For Integrated Irrigation And Aquaculture Development In Small Watersheds, Xueliang Cai, Suan Pheng Kam, Bui Tan Yen, Aditya Sood, Hoanh Chu Thai Aug 2014

Cawat – A Catchment Water Allocation Tool For Integrated Irrigation And Aquaculture Development In Small Watersheds, Xueliang Cai, Suan Pheng Kam, Bui Tan Yen, Aditya Sood, Hoanh Chu Thai

International Conference on Hydroinformatics

Water resources development has seen little development in the vast rural areas of Sub-Sahara Africa (SSA) due to lack of investment, means of access and poor policy environment. In search of sustainable and efficient water resources development, participatory approach is widely accepted as a key strategy for water resources development and conservations in many SSA countries. To encourage bottom-up solutions for local water resources development, a Catchment Water Allocation Tool (CaWAT) was developed to aid rural water resources planning for agriculture in small watersheds. The tool is based on water balance accounting to examine water allocations among different users. It …

Go to article

Searching For Empirical Evidence Of Complex Hydrological Behavior In Urbanizing Basins, Tijana Jovanovic, Ridwan Siddique, Alfonso Mejia Aug 2014

Searching For Empirical Evidence Of Complex Hydrological Behavior In Urbanizing Basins, Tijana Jovanovic, Ridwan Siddique, Alfonso Mejia

International Conference on Hydroinformatics

Urban living accounts for approximately 50% of the worldwide population and this percentage will continue to rise in the decades to come. Urbanizing landscapes and their associated processes represent key aspects of coupled natural and human systems. Additionally, they can influence and cause impacts on regional broad-scale basin hydrology, stream and riparian ecosystems, and water quality. For this research, it is hypothesized that streamflow and water quality time series data for urbanizing basins may exhibit signs of complexity such as long range correlations, state transitions, and chaotic dynamics. To explore this hypothesis, we will use tools from statistical physics and …

Go to article

Development Of River Recreation Index Model Reflecting Fuzziness In Water Quality Data, Il Won Seo, Soo-Yeon Choi Aug 2014

Development Of River Recreation Index Model Reflecting Fuzziness In Water Quality Data, Il Won Seo, Soo-Yeon Choi

International Conference on Hydroinformatics

Recreational activities in rivers are gaining popularities in Korea due to increase of household income and rehabilitation of riverside. As a lot of people enjoy recreation in water, proper information on the water quality of rivers should be provided to the public in order to secure the safety of publics. In this research, a River Recreation Index (RRI) model was developed based on fuzzy set theory. RRI is the integrated index of important water quality parameters related to recreational activities in rivers and expressed as point from 0 to 100. The fuzzy synthetic evaluation approach was used to reflect the …

Go to article

Response Of River Hydrological And Habitat Features To Water Supplement By Upstream Dam In Lijiang River, China, Ruonan Li, Qiuwen Chen, Duan Chen, Rui Han Aug 2014

Response Of River Hydrological And Habitat Features To Water Supplement By Upstream Dam In Lijiang River, China, Ruonan Li, Qiuwen Chen, Duan Chen, Rui Han

International Conference on Hydroinformatics

River development has impact on river hydrology instantly, and then produces far-reaching influence on river ecology gradually. Research on hydrological and ecological response to river environmental variation has caught much attention for river sustainable exploitation. This research, takingLijiangRiveras a case, developed a river habitat model integrated with water environmental model, which used to analyze the relations of hydrological and habitat features to flow regime variation due to upstream reservoir operation. This paper analyzed the hydraulic and water quality variation under two different flow schemes, and assessed habitat evolution before and after implementation of water supplement project. Finally, the optimum objective …

Go to article

Decision Tree Analysis Of Processes Generating Water-Related Building Damage: A Case Study In Rotterdam, The Netherlands, Matthieu Spekkers, Francois Clemens, Marie-Claire Ten Veldhuis Aug 2014

Decision Tree Analysis Of Processes Generating Water-Related Building Damage: A Case Study In Rotterdam, The Netherlands, Matthieu Spekkers, Francois Clemens, Marie-Claire Ten Veldhuis

International Conference on Hydroinformatics

The objective of this study was to identify the main failure mechanisms behind water-related building damage and to investigate to what extent these processes are related to characteristics of buildings and rainfall events. Results are based on the mining of property level insurance damage data, for a case study in Rotterdam, the Netherlands. This study has found that most frequent causes of water-related damage relate to roof leakages (28%), bursts of household water supply pipes (19%) and blocked household wastewater systems (18%). Cases of sewer flooding or depression filling were less present (2.4% and 0.6%), but showed stronger correlations with …

Go to article

Short-Term Evaporation Estimating From Complex Small Lakes In Arid And Semi-Arid Regions, Ali Abbasi, Nick Van De Giesen Aug 2014

Short-Term Evaporation Estimating From Complex Small Lakes In Arid And Semi-Arid Regions, Ali Abbasi, Nick Van De Giesen

International Conference on Hydroinformatics

In many parts of the world, the available water resources are now being used close to their limits. Global climate change, the increasing population of the earth and ever-increasing standards of living and consequent growing demand of water are bringing water sustainability into sharp focus. Evaporation as a major component of the hydrologic cycle, is the largest one of water loss from lakes especially in arid and semi-arid regions. Because of lacking of understanding of the thermodynamics of atmospheric boundary layer(ABL) and heat exchange between the water surface and atmosphere, an accurate estimation of evaporation from water surfaces is almost …

Go to article

Multi-Objective Pipe Smoothing Genetic Algorithm For Water Distribution Network Design, Matthew Barrie Johns, Edward C. Keedwell, Dragan A. Savić Aug 2014

Multi-Objective Pipe Smoothing Genetic Algorithm For Water Distribution Network Design, Matthew Barrie Johns, Edward C. Keedwell, Dragan A. Savić

International Conference on Hydroinformatics

This paper describes the formulation of a Multi-objective Pipe Smoothing Genetic Algorithm (MOPSGA) and its application to the least cost water distribution network design problem. Evolutionary Algorithms have been widely utilised for the optimisation of both theoretical and real-world non-linear optimisation problems, including water system design and maintenance problems. In this work we present a pipe smoothing based approach to the creation and mutation of chromosomes which utilises engineering expertise with the view to increasing the performance of the algorithm whilst promoting engineering feasibility within the population of solutions. MOPSGA is based upon the standard Non-dominated Sorting Genetic Algorithm-II (NSGA-II) …

Go to article

Holistic Flood Risk Assessment In Coastal Areas - The Pearl Approach, Zoran Vojinović, Yared Abebe, Arlex Sanchez-Torres, Neiler Medina, Igor Nikolic, Natasa Manojlovic, Christos Makropoulos, Mark Pelling Aug 2014

Holistic Flood Risk Assessment In Coastal Areas - The Pearl Approach, Zoran Vojinović, Yared Abebe, Arlex Sanchez-Torres, Neiler Medina, Igor Nikolic, Natasa Manojlovic, Christos Makropoulos, Mark Pelling

International Conference on Hydroinformatics

Coastal floods are one of the most dangerous and harmful natural hazards affecting urban areas adjacent to shorelines. The present paper discusses the FP7-ENV-2013 EU funded PEARL (Preparing for Extreme And Rare events in coastaL regions) project which brings together world leading expertise in both the domain of hydro-engineering and risk reduction and management services to pool knowledge and practical experience in order to develop more sustainable risk management solutions for coastal communities focusing on present and projected extreme hydro-meteorological events. The PEARL approach draws upon the complexity theory and the use of complex adaptive system (CAS) models as tools …

Go to article

Extending Occoquan Reservoir Water Quality Model For Stakeholder Involvement, Saurav Kumar, Adil Godrej, Thomas Grizzard Aug 2014

Extending Occoquan Reservoir Water Quality Model For Stakeholder Involvement, Saurav Kumar, Adil Godrej, Thomas Grizzard

International Conference on Hydroinformatics

There has been a paradigm change in water resource management as control of major point sources has improved, and recognition has grown of the importance of diffused pollution. Newer approaches, exemplified by watershed-scale management, emphasize stakeholder involvement to achieve better decision making through negotiation and compromise; and ultimately, better acceptance of final management solutions. Stakeholder participatory involvement in using complex water quality models to understand management scenarios and their impacts is, however, limited. Advanced receiving waterbody and watershed WQ models are complicated and require significant technical expertise in their understanding and use, which is a deterrent to non-expert stakeholder involvement. …

Go to article

Assessment Of Inundation Area During Flood Drafts From Water Reservoir., Viacheslav Bokov, Olesya Larina, Irina Kozyr Aug 2014

Assessment Of Inundation Area During Flood Drafts From Water Reservoir., Viacheslav Bokov, Olesya Larina, Irina Kozyr

International Conference on Hydroinformatics

A big amount of towns within the Moscow region are located downstream of the water reservoirs and territories of the towns are covered by water during catastrophic floods. At present in world practice quite successfully are used HEC – RAS technologies for prediction of flooding areas. Accordingly the main aim of the research is assessment of usability HEC – RAS technology in conditions of spring floods for the Moscow region. The aim has required of solving of next problems: 1. 1. Determination of spring flood hydrograph respecting of normative probability. 2. 2. Calculation of drafts from water reservoir through spillway. …

Go to article

Getting Hydroinformatic Tools From Research Into Practice: The Watershare Approach, Christos Makropoulos, Idsart Dijkstra, Wim Van Vierssen Aug 2014

Getting Hydroinformatic Tools From Research Into Practice: The Watershare Approach, Christos Makropoulos, Idsart Dijkstra, Wim Van Vierssen

International Conference on Hydroinformatics

The global Water Sector is faced with significant challenges, including, but not restricted to aging infrastructure, fluctuating populations, new pollutants, more stringent regulations and the need for benchmarking their performance. At the same time the Sector remains very fragmented and hence its R&D often doesn’t have the critical mass to develop the tools and models that are required. Although research institutes and academia do develop such tools, the road from the research environment to the first practical application often proves an insurmountable barrier. Watershare offers a platform for such a transition: Launched as an online placeholder for expert water-related tools, …

Go to article

A Projection For River Information Service In South Korea, Deukkoo Koh, Hyungjin Shin, Hyosok Chae Aug 2014

A Projection For River Information Service In South Korea, Deukkoo Koh, Hyungjin Shin, Hyosok Chae

International Conference on Hydroinformatics

River information management systems in South Korea have been improved in order to proactively respond to the change in the information environment. Recently, Smart River-based river information services and related data have become so large as to be overwhelming, requiring necessary improvements in managing Big Data. Nowadays, data is gathered from diverse sources including terrestrial measurements, sensor networks and satellites. In this study, a plan was suggested to respond to changes in the information environment and to provide a future Cloud Computing based river information service by understanding and improving the current state of river information management systems. GeoServer is …

Go to article

Comparison Of Interpolation Technique For Rain Gauge Data Through The Distributed Rainfall-Runoff Model, Byung-Jin So, Ji-Young Yoo, Hyun-Han Kwon Aug 2014

Comparison Of Interpolation Technique For Rain Gauge Data Through The Distributed Rainfall-Runoff Model, Byung-Jin So, Ji-Young Yoo, Hyun-Han Kwon

International Conference on Hydroinformatics

Precipitation estimated from different measuring techniques such as rain gauge, radar and satellite have some similarities, but there are also differences among them. For example, techniques based on radar and satellite data underestimate rainfall than those using rain gauge data. In addition, many different interpolation techniques have been used to measure spatial pattern of precipitation but it is still difficult to have an accurate pattern by any one of them. The differences between the rainfall estimates from different techniques vary seasonally as well as regionally so that the radar or satellites are not directly applied into hydrologic analysis. In this …

Go to article

Interactive 3d Visualization Of Optimization For Water Distribution Systems, Matthew Barrie Johns, Edward C. Keedwell, Dragan A. Savić Aug 2014

Interactive 3d Visualization Of Optimization For Water Distribution Systems, Matthew Barrie Johns, Edward C. Keedwell, Dragan A. Savić

International Conference on Hydroinformatics

This project investigates the use of modern 3D visualisation techniques to enable the interactive analysis of water distribution systems with the aim of providing the engineer with a clear picture of the problem and thus aid the overall design process. Water distribution systems are complex entities that are difficult to model and optimise as they consist of many interacting components each with a set of considerations to address, hence it is important for the engineer to understand and assess the behaviour of the system to enable its effective design and optimisation. This paper presents a new three-dimensional representation of pipe …

Go to article

Fast Neural Network Surrogates For Complex Groundwater Flow Models, Niels Schütze, Tirthankar Roy Aug 2014

Fast Neural Network Surrogates For Complex Groundwater Flow Models, Niels Schütze, Tirthankar Roy

International Conference on Hydroinformatics

Surrogate modeling approach has been adopted in the study to replace computationally expensive physical-based numerical flow and transport model. Two approximate surrogate models namely, Artificial Neural Network (ANN) and Gaussian Process Model (GPM) are developed individually using a scenario database generated from the density dependent numerical flow and transport model OpenGeoSys (OGS). The state-space surrogates have the flexibility to move freely from one point to another within a time frame of decades and also to allow for moderate extrapolation in the case of extreme abstractions. The performance of the GPM was better in many cases with a little compromise on …

Go to article

Probabilistic Integrated Urban Inundation Modeling Using Sequential Data Assimilation, Seong Jin Noh, Seungsoo Lee, Hyunjun Kim Aug 2014

Probabilistic Integrated Urban Inundation Modeling Using Sequential Data Assimilation, Seong Jin Noh, Seungsoo Lee, Hyunjun Kim

International Conference on Hydroinformatics

Urban inundation due to climate change and heavy rainfall is one of the most common natural disasters worldwide. However, it is still insufficient to obtain accurate urban inundation predictions due to various uncertainties coming from input forcing data, model parameters, and observations. Despite of numerous sophisticated data assimilation algorithms proposed to increase the certainty of predictions, there have been few attempts to combine data assimilation with integrated inundation models due to expensive computations and computational instability such as breach of conservation and momentum equations in the updating procedure. In this study, we propose a probabilistic integrated urban inundation modeling scheme …

Go to article

Toward A Foundational Hydro Ontology For Water Data Interoperability, Boyan Brodaric, Torsten Hahmann Aug 2014

Toward A Foundational Hydro Ontology For Water Data Interoperability, Boyan Brodaric, Torsten Hahmann

International Conference on Hydroinformatics

Hydro ontologies are digital artifacts that contain representations of hydrological entities. They are being constructed to advance interoperability within and between various water data networks. Increased growth of such networks, however, is prompting integration of a greater variety of data, which requires a more general and principled approach to hydro ontology. One such approach is the development of a canonical reference ontology. This paper describes recent progress on the development of such an ontology for both the surface and subsurface hydro domains. Identified is a container schema that anchors the ontology, and also described is an initial representation of the …

Go to article

Developing Landsat Based Algorithms To Augment In Situ Monitoring Of Freshwater Lakes And Reservoirs, Eliza Deutsch, Ibrahim Alameddine, Mutasem El-Fadel Aug 2014

Developing Landsat Based Algorithms To Augment In Situ Monitoring Of Freshwater Lakes And Reservoirs, Eliza Deutsch, Ibrahim Alameddine, Mutasem El-Fadel

International Conference on Hydroinformatics

Many lakes and reservoirs lack adequate water quality monitoring programs. With little information on the state of these systems, managing these resources and their contributing watersheds is a challenge. The use of remote sensing presents an opportunity to better characterize these freshwater systems. The full potential of using the Landsat program to measure optically active water quality parameters, such as chlorophyll-a, suspended sediments and water clarity was explored using the Qaraoun Reservoir in Lebanon as a case study. An in situ monitoring program was developed and synchronized with the overpass of Landsat 7 and the newly launched Landsat 8 satellites …

Go to article

Forecasting Techniques Applied To Water Quality Time Series In View Of Data Quality Assessment, Janelcy Alferes, John Copp, Peter A. Vanrolleghem Aug 2014

Forecasting Techniques Applied To Water Quality Time Series In View Of Data Quality Assessment, Janelcy Alferes, John Copp, Peter A. Vanrolleghem

International Conference on Hydroinformatics

The main advantage of continuous water quality measurement systems is the ability to capture dynamics in water and wastewater systems, which allows for the identification of critical events, the evaluation of impacts on receiving water bodies, the identification of cause and effect relationships and the ability to discern trends. However, the challenge associated with automatic monitoring systems is the collection of data with sufficient quality for the intended application. That is, useful monitoring is dependent on cautious data quality assessment. With particular attention to its practical implementation, this paper presents a method for data quality assessment that attempts to extract …

Go to article

Flood Resilience Index - Methodology And Application, Jelena Batica, Philippe Gourbesville Aug 2014

Flood Resilience Index - Methodology And Application, Jelena Batica, Philippe Gourbesville

International Conference on Hydroinformatics

In recent years the number of people affected by flooding processes increases up to the point where the organisational structure of urban communities threatens to experience the significant direct and indirect damages. The vulnerability to flooding processes due to sophisticated assets is high and the assessment of flood resilience becomes the main direction to follow within integrated flood risk management. This paper takes a first step in bringing resilience in integrated flood risk management through a framework that is employing five dimensions in order to evaluate the level of disturbance and ability to preserve and functioning during and after the …

Go to article

Detecting Pipe Bursts In Water Distribution Networks Using Epr Modeling Paradigm, Luigi Berardi, Daniele Laucelli, Orazio Giustolisi, Dragan A. Savić Aug 2014

Detecting Pipe Bursts In Water Distribution Networks Using Epr Modeling Paradigm, Luigi Berardi, Daniele Laucelli, Orazio Giustolisi, Dragan A. Savić

International Conference on Hydroinformatics

Sustainable management of water distribution networks requires the timely detection of water leakages from pipelines. This will reduce wastage of resource, decrease cost of treatment and pumping, cut third party damage and reduce green house gas emissions. Some recently developed methodologies permit real time detection of pipe burst events by analyzing signals from pressure and flow meters located in District Metered Areas. These procedures are conceptually based on: (i) data preparation (e.g. de-noising; reconstruction); (ii) predictions based on data-driven models; (iii) identification of anomalies in flow/pressure and raising alerts based on a mismatch between model predictions and signals from meters. …

Go to article

Priming The Pump: Exploring The Impact Of Smart Water Pumps On Communities In South Africa And Malawi, Where Water Access Is Problematic., Nathan John Cooper Aug 2014

Priming The Pump: Exploring The Impact Of Smart Water Pumps On Communities In South Africa And Malawi, Where Water Access Is Problematic., Nathan John Cooper

International Conference on Hydroinformatics

A significant factor contributing to insufficient and unpredictable access to water in Africa is the high percentage of broken water pumps. Previous studies have reported that between 20% and 50% of all hand-operated pumps installed in Africa are out of use. Monitoring and maintenance of pumps is often ineffective, due in part to the high costs of routine site visits, and the limited resources of NGOs and developing states. The emergence of new telemetry technology that can remotely monitor water pumps constitutes a novel, cost-efficient alternative to undertaking pre-emptory site visits. In particular, ‘SALT technology’ (sustainable, alternative, low-cost telemetry) has …

Go to article

A High Precision Test Method And The Related Equipment For Smart Water Meters, Youn-Sik Hong, Chul-Ho Lee Aug 2014

A High Precision Test Method And The Related Equipment For Smart Water Meters, Youn-Sik Hong, Chul-Ho Lee

International Conference on Hydroinformatics

We are now developing a smart water meter dedicated to smart water grid systems. The primary goal of our reseach is to make the smart water meters with higher precision compared with typical water meters. For instance, the range of the allowable measurement errors for the flow rate in the lower zone of the second level precision water meter is set to +-5% by the Korea Standard. However, with ours the range is decreased to +- 3% for the same condition. Therefore it is necessary to build a high precision test method and the related equipment for evaluating the performance …

Go to article

First Prev Next Last