Article
Engineering, Multidisciplinary
Aniket N. Sharma, Shilpa R. Dongre, Rajesh Gupta, Prerna Pandey, Neeraj Dhanraj Bokde
Summary: This study proposes a method for detecting clusters in a water distribution network and reducing costs by utilizing existing valves as much as possible. The findings suggest that the system with existing valves performs better in terms of cost and network performance compared to a system without existing valves.
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES
(2022)
Article
Engineering, Environmental
Marcel Favereau, Alvaro Lorca, Matias Negrete-Pincetic, Sebastian Vicuna
Summary: This study proposes a novel method for streamflow forecasting, which models the noise as a multivariate Student's t-mixture to capture the presence of outliers and considers the trend, seasonality, spatio-temporal correlations, asymmetry, and multimodal features. Experimental results demonstrate the effectiveness of the proposed model in medium to long-term streamflow forecasting compared to traditional methods.
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
(2022)
Article
Environmental Sciences
Xuan Khoa Bui, Malvin S. Marlim, Doosun Kang
Summary: This paper proposes an approach for the optimal design of DMAs in a WDN through the MCDA framework, which, by coupling the SOM and CSA models, can create homologous and dynamic DMA layouts capable of adapting to water demand variability.
Article
Construction & Building Technology
Samuele Spedaletti, Mose Rossi, Gabriele Comodi, Luca Cioccolanti, Danilo Salvi, Matteo Lorenzetti
Summary: This study successfully implemented a comprehensive approach to reduce water losses in a Water Distribution Network in Osimo, Italy, utilizing the DMA method. By monitoring flow rates, calibrating hydraulic models, and installing smart meters, a 12.5% reduction in water losses was achieved, resulting in energy and cost savings.
SUSTAINABLE CITIES AND SOCIETY
(2022)
Article
Engineering, Chemical
Suwan Park, Jae-Hong Ha
Summary: This paper explores the use of PCA algorithms for detecting water pipe network leaks, verifying the flow data of DMAs for potential leak incidents in a management context. The results of sensitivity analyses guide the determination of model parameters for specific flow data.
DESALINATION AND WATER TREATMENT
(2021)
Article
Mathematics, Applied
Bruno M. Brentan, Silvia Carpitella, Joaquin Izquierdo, Edevar Luvizotto, Gustavo Meirelles
Summary: The design of district metered areas (DMA) in potable water supply systems is crucial for water utilities, involving considerations of cost, equipment installation, and network optimization. Using multi-objective optimization methods and decision support techniques can effectively support DMA design decisions.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2022)
Article
Green & Sustainable Science & Technology
Taehyeon Kim, Yoojin Oh, Jayong Koo, Doguen Yoo
Summary: This study proposes a methodology for determining and prioritizing water quality-oriented Priority Control District Metered Areas (PCDMAs). Using evaluation criteria and indicators, based on GIS and the analytic hierarchy process, the study shows that indicators of water quality complaints and the existence of vulnerable facilities are important criteria for determining water quality-oriented PCMDAs. The proposed methodology can be used as a decision-making tool to improve the accuracy and reliability of water distribution network operation and management (O&M).
Article
Computer Science, Artificial Intelligence
Meiling Cai, Yaqin Shi, Jinping Liu, Jean Paul Niyoyita, Hadi Jahanshahi, Ayman A. Aly
Summary: Fault monitoring is crucial for ensuring the safety and quality of industrial manufacturing processes. This paper proposes a fault monitoring method based on a DRKPCA-VBMGM model, which effectively handles large-scale, complex, and dynamically time-varying industrial processes.
JOURNAL OF INTELLIGENT MANUFACTURING
(2023)
Article
Engineering, Environmental
Tingchao Yu, Xiangqiu Zhang, Zhihong Long, Hua Zhou, Xiaowei Liu
Summary: In this study, a two-step novel process for DMA partitioning is proposed, aiming to improve the efficiency of water distribution systems management and leakage control through clustering and dividing nodes. An innovative and efficient dividing phase is introduced, mainly selecting important boundary pipes through hydraulic analysis and using the particle swarm optimization algorithm to improve optimization accuracy.
Article
Environmental Sciences
Natalia Janczewska, Magdalena Matysik, Damian Absalon, Lukasz Pieron
Summary: This passage describes several databases in Poland that contain information on land use and water bodies. The data from these databases are referenced in scientific analyses and the Polish water management system, and thus the processing results should be consistent. However, the quality of these data was examined through multi-criteria analyses, revealing discrepancies between the databases. The author suggests using water land cover data with caution and considering remote sensed data depending on the analysis scales.
Article
Environmental Sciences
Ana Fernandez-Guillamon, Francisco Javier Perez de la Cruz, Borja Valverde-Perez, Pedro D. Martinez-Solano, Antonio Vigueras-Rodriguez
Summary: The energy required for processes in the water cycle has significant impacts, thus efficient energy management in urban water supply systems is crucial. This study presents a new methodology to assess energy recovery in district metered areas, using the city of Murcia in Spain as a case study. The results show that turbines could be installed at various points to recover energy, which can be used to meet the energy demand of schools or traffic lights.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Thermodynamics
Yakai Bai, Ming Yang, Jianhua Fan, Xiaoxia Li, Longfei Chen, Guofeng Yuan, Zhifeng Wang
Summary: The study investigates the influence of geometry on the thermal capacity and stratifications of water pit heat storage for solar district heating. The results show that the height to diameter ratio of a water pit with minimum annual heat loss was always smaller than 1.0, and the annual storage efficiency of a water pit increases with side wall slope. Additionally, there is an almost linear increase in the thermal stratification number of a water pit with height.
BUILDING SIMULATION
(2021)
Article
Public, Environmental & Occupational Health
Najma Javed Awan, Ambreen Chaudhry, Zakir Hussain, Zeeshan Iqbal Baig, Mirza Amir Baig, Rana Jawad Asghar, Yousef Khader, Aamer Ikram
Summary: This study found that stored water in households and subsequent mosquito breeding were the main causes of the dengue fever outbreak. Recommendations for preventing dengue outbreaks include improving the use of mosquito repellents and removing sources of breeding.
JMIR PUBLIC HEALTH AND SURVEILLANCE
(2022)
Article
Environmental Sciences
Arinao Murei, Barbara Mogane, Dikeledi Prudence Mothiba, Opelo Tlotlo Wryl Mochware, Jeridah Matlhokha Sekgobela, Mulalo Mudau, Ndamulelo Musumuvhi, Colette Mmapenya Khabo-Mmekoa, Resoketswe Charlotte Moropeng, Maggie Ndombo Benkete Momba
Summary: This study assessed the status of basic services and determined the factors hindering the implementation of water and sanitation safety plans in rural communities in the Vhembe District, Limpopo Province, South Africa. The results indicated that poverty, unemployment, lack of access to purified water, and inadequate sanitation facilities have hindered the WSSP process.
Article
Environmental Sciences
Haiou Wu, Xinjun Tu, Xiaohong Chen, Vijay P. Singh, Leonardo Alfonso, Kairong Lin, Zhiyong Liu, Rongbiao Lai
Summary: This paper presents a new framework, called water supply regulation by avoiding saltwater withdrawal (RASW), to address freshwater availability issues in coastal areas. The framework considers the relationships among saltwater intrusion, upstream streamflow, and water supply. The proposed framework was tested on the water supply for Zhuhai-Macao in the Guangdong-Hong Kong-Macao Great Bay Area, South China, and the results showed that the joint river-reservoir regulation mode improved water supply security. However, extreme scenarios with extremely low streamflow distribution posed a threat to water supply security, highlighting the need for effective control measures.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
