Relevant bibliographies by topics / Looped pipe network

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Looped pipe network'

Author: Grafiati
Published: 5 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "Looped pipe network"

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Young, Brian. "Analysis and optimisation of looped water distribution networks." Journal of the Australian Mathematical Society. Series B. Applied Mathematics 41, no. 4 (2000): 508–26. http://dx.doi.org/10.1017/s0334270000011796.

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AbstractA three stage procedure for the analysis and least-cost design of looped water distribution networks is considered in this paper. The first stage detects spanning trees and identifies the true global optimum for the system. The second stage determines hydraulically feasible pipe flows for the network by the numerical solution of a set of non-linear simultaneous equations and shows that these solutions are contained within closed convex polygonal regions in the solution space bounded by singularities resulting from zero flows in individual pipes. Ideal pipe diameters, consistent with th
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Gajghate, Preeti Walmik, Ashwini Mirajkar, Uzma Shaikh, Neeraj Dhanraj Bokde, and Zaher Mundher Yaseen. "Optimization of Layout and Pipe Sizes for Irrigation Pipe Distribution Network Using Steiner Point Concept." Mathematical Problems in Engineering 2021 (February 27, 2021): 1–12. http://dx.doi.org/10.1155/2021/6657459.

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In tropical countries like India, irrigation is necessary to grow crops in the nonmonsoon period. The conventional methodology for conveying irrigation water from the source to the field is through open canals. However, considering huge losses due to evaporation and percolation, a modern system of irrigation like pipe irrigation network (PIN) is desired. Advancement in technology has led to the progress in the PIN as they are compatible with modern irrigation facilities such as sprinkler and drip irrigation systems. In the present study, the layout of the PIN is designed and optimized in two p
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Sharma, A. K., and P. K. Swamee. "Application of linear programming for looped water supply pipe network design." Water Supply 13, no. 5 (2013): 1195–201. http://dx.doi.org/10.2166/ws.2013.126.

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It has been indicated in the literature that looped water distribution systems designed with the linear programming (LP) optimisation technique are converted into tree-like structures resulting in the disappearance of the original geometry in the final design. Looped networks are provided for system reliability, thus such a design approach will defeat the basic purpose of looped systems provision. Such a limitation has hindered the application of LP for the design of looped water supply networks. A method for the design of a looped water distribution system has been developed such that the loo
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Sarbu, Ioan, and Gabriel Ostafe. "Determination of Neutral Point in Water Distribution Network Pipes with Variable Discharge on Route." Advanced Materials Research 909 (March 2014): 428–32. http://dx.doi.org/10.4028/www.scientific.net/amr.909.428.

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Distribution networks are an essential part of all water supply systems. Distribution system costs within any water supply scheme may be equal to or greater than 60% of the entire cost of the project. The reliability of supply is much greater in the case of looped networks. The pipe networks have concentrated outflows or uniform outflow along the length of each pipe. In some pipes with variable discharge of a looped distribution network, water velocity could be reversed between its extremities. Thus, it is a water stall point denominated neutral point in which the discharge is null. In this pa
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Yoo, Do Guen, Ho Min Lee, Ali Sadollah, and Joong Hoon Kim. "Optimal Pipe Size Design for Looped Irrigation Water Supply System Using Harmony Search: Saemangeum Project Area." Scientific World Journal 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/651763.

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Water supply systems are mainly classified into branched and looped network systems. The main difference between these two systems is that, in a branched network system, the flow within each pipe is a known value, whereas in a looped network system, the flow in each pipe is considered an unknown value. Therefore, an analysis of a looped network system is a more complex task. This study aims to develop a technique for estimating the optimal pipe diameter for a looped agricultural irrigation water supply system using a harmony search algorithm, which is an optimization technique. This study main
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Lee, Jinwoo, Gunhui Chung, Heeseong Park, and Innjoon Park. "Evaluation of the Structure of Urban Stormwater Pipe Network Using Drainage Density." Water 10, no. 10 (2018): 1444. http://dx.doi.org/10.3390/w10101444.

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In mega cities such as Seoul in South Korea, it is very important to protect the cities from surface flooding even for a short time period due to the enormous economic damage. That is why stormwater pipe networks are commonly applied to mega cities with large impervious areas to drain runoff from the city. Therefore, the stormwater pipe networks in urban catchments should be carefully designed for quick and efficient runoff removal. In this study, the structures of different stormwater pipe networks were evaluated based on the relationship between peak rainfall and runoff in the urban catchmen
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Nedaei, Mojtaba. "Impact of Network Configuration on Hydraulic Constraints and Cost in the Optimization of Water Distribution Networks." Applied Sciences 15, no. 6 (2025): 3126. https://doi.org/10.3390/app15063126.

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This study introduces a novel approach for the multi-model analysis of complex water distribution networks (WDNs). The research focuses on designing and optimizing various WDN configurations while adhering to hydraulic constraints. Several key parameters and criteria are considered to achieve an efficient design. Additionally, different network layouts are evaluated, including looped and non-looped systems with varying numbers of reservoirs. Next, an analytical approach is developed to optimize the proposed WDNs, taking into account pipe type, length, and diameter, as well as nodal demands, el
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Hoțupan, Anca, Roxana Mare, and Adriana Hădărean. "Water Loss Reduction in Water Distribution Networks. Case Study." Journal of Applied Engineering Sciences 9, no. 1 (2019): 73–80. http://dx.doi.org/10.2478/jaes-2019-0009.

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Abstract Water losses on the potable water distribution networks represent an important issue; on the one hand, water loss does not bring money and on the other hand, they modify water flow and pressure distribution on the entire system and this can lead to a cut-off of the water supply. A stringent monitoring of the water distribution network reduces considerably the water losses. The appearance of a leakage inside the distribution network is inevitable in time. But very important is its location and repair time – that are recommended to be as short as possible. The present paper analyses the
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Brkić, Dejan, and Pavel Praks. "Short Overview of Early Developments of the Hardy Cross Type Methods for Computation of Flow Distribution in Pipe Networks." Applied Sciences 9, no. 10 (2019): 2019. http://dx.doi.org/10.3390/app9102019.

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Hardy Cross originally proposed a method for analysis of flow in networks of conduits or conductors in 1936. His method was the first really useful engineering method in the field of pipe network calculation. Only electrical analogs of hydraulic networks were used before the Hardy Cross method. A problem with flow resistance versus electrical resistance makes these electrical analog methods obsolete. The method by Hardy Cross is taught extensively at faculties, and it remains an important tool for the analysis of looped pipe systems. Engineers today mostly use a modified Hardy Cross method tha
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Jiao, Jing, Hai Wang, and Hai Ying Wang. "Design and Analysis of Distributed Pump-System in District Heating Network." Advanced Materials Research 732-733 (August 2013): 156–60. http://dx.doi.org/10.4028/www.scientific.net/amr.732-733.156.

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This paper presents a new scheme of distributed pump-system for district heating network. As no circulating pumps for the heat sources and no throttle valves for the users, much energy is saved. And the control of hydraulic parameters can be adjusted without interfering with that of the thermodynamic parameters. The novel scheme is available for both looped pipeline networks (LPNs) with multiple heat sources and dendritic pipeline networks (DPNs) with single heat source. Moreover, for users located at the hydraulic intersection points of the looped pipe network with multi-heat sources, their w
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Dissertations / Theses on the topic "Looped pipe network"

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Jesuthasan, Nirmalakanth. "Modeling of thermofluid phenomena in segmented network simulations of loop heat pipes." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106276.

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The overarching goal of the work presented in this thesis is to formulate, implement, test, and demonstrate cost-effective mathematical models and numerical solution methods for computer simulations of fluid flow and heat transfer in loop heat pipes (LHPs) operating under steady-state conditions.A segmented network thermofluid model for simulating steady-state operation of conventional LHPs with cylindrical and flat evaporators is proposed. In this model, the vapor-transport line, condenser pipe, and liquid-transport line are divided into longitudinal segments (or control volumes). Quasi-one-d
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Mottet, Laetitia. "Simulations of heat and mass transfer within the capillary evaporator of a two-phase loop." Thesis, Toulouse, INPT, 2016. http://www.theses.fr/2016INPT0012/document.

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Le contrôle thermique des composants électroniques embarqués dans les engins spatiaux est souvent assuré par des boucles fluides diphasiques à pompage capillaire (Loop Heat Pipe (LHP) ou Capillary Pumped Loop (CPL)). La présente étude est centrée sur les évaporateurs des LHP. Ils sont composés principalement d’un bâti métallique, d’une mèche poreuse et de cannelures. Le milieu poreux est initialement saturé en liquide. La charge thermique à évacuer est appliquée sur le bâti entraînant la vaporisation du liquide au sein de la mèche. La vapeur est ensuite récoltée au sein des cannelures pour êtr
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Louriou, Clément. "Modélisation instationnaire des transferts de masse et de chaleur au sein des évaporateurs capillaires." Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0083/document.

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Dans ce travail, nous nous intéressons à la dynamique de croissance d'une poche de vapeur par vaporisation en milieu poreux, en relation avec l'analyse des transferts couplés de masse et de chaleur dans les mèches poreuses des boucles fluides diphasiques à pompage capillaire. Nous proposons un modèle pour les régimes transitoires, régimes encore très mal compris en dépit de leur grande importance pratique (phase de démarrage, variations de puissance, etc.). Une approche de type "réseau de pores" est adoptée et permet de prédire la distribution des phases à l'échelle de l'espace des pores. Dans
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Liu, Chun-Hsi, and 劉俊希. "Using Back-Propagation Network to Predict the Thermal Performance of Radial-type Closed Loop Pulsating Heat Pipe." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/13279250641125196564.

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碩士<br>聖約翰科技大學<br>自動化及機電整合研究所<br>98<br>In this study, the Back-Propagation Network Learning Rule within an Artificial Neural Network was utilized to optimize the thermal performance of Radial-type Pulsating Heat Pipes. In the process of network learning, the main four kinds of design factors introduced into Radial-type Pulsating Heat Pipes were used for the input parameters: Radiation quantity, radiation length, filling rate, and heating wattage. Also, the designs and planning of thermal resistance value based on eight output levels were designed. The Neural Network Toolbox in METLAB also serve
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Book chapters on the topic "Looped pipe network"

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Rathi, Shweta, and Rajesh Gupta. "Genetic Algorithm for Minimization of Variance of Pipe Flow-Series for Looped Water Distribution Networks." In Hydrological Modeling. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-81358-1_16.

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Ramprasad, C., and C. R. Suribabu. "The Effect of Pipe Age and Piping Materials on Chlorine Decay in a Pilot Loop Water Distribution Network." In Lecture Notes in Civil Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4629-4_20.

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Conference papers on the topic "Looped pipe network"

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Todini, Ezio. "Towards Realistic Extended Period Simulations (EPS) in Looped Pipe Network." In Eighth Annual Water Distribution Systems Analysis Symposium (WDSA). American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40941(247)76.

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Dastgir, Aun, Martin Oberascher, Sina Hesarkazazzi, and Robert Sitzenfrei. "Graph based method for critical pipe analysis in urban drainage networks and the effect of loop degree." In 2nd WDSA/CCWI Joint Conference. Editorial Universitat Politècnica de València, 2022. http://dx.doi.org/10.4995/wdsa-ccwi2022.2022.14105.

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Urban drainage network (UDN) is an important lifeline for urban areas, without which living conditions as we know it cannot be imagined. Internal and external pressures on these systems like structural failures, climate change and urbanization, require efficient modelling strategies for its management and maintenance. For proper functioning of the system as a whole, some elements of UDN infrastructure hold more importance than other elements. Identifying these critical elements in UDNs is of utmost importance for forming efficient management strategies. In this study, a graph-based method base
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Djebedjian, Berge, Ahmed Herrick, and Magdy Abou Rayan. "Modeling and Optimization of Potable Water Network." In 2000 3rd International Pipeline Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/ipc2000-256.

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A potable water network hydraulic analysis is presented in this paper. A mathematical model was developed, the model treats looped network. A computer program is developed in order to facilitate water distribution system design, which satisfies all constraints including pipe diameter and nodal pressure. An optimization technique is developed in order to evaluate the optimum network configuration and cost, the parameters are pipe diameter, flow rate, corresponding pressure and hydraulic losses. A non-linear technique was adopted in the solution. The model uses the sequential unconstrained minim
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Yang, Jianjun, Hong Zhan, and Yucheng Ding. "Improved Dual Coding Genetic Algorithm for the Optimal Design of Looped Pipe Network Based on Cycle." In 2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM). IEEE, 2011. http://dx.doi.org/10.1109/cdciem.2011.434.

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Wei, Li-xin, Hua-sha Jiang, and Yang Liu. "Hybrid Genetic-Simulated Annealing Algorithm of Location-Allocation Optimization of Looped Gathering and Transportation Pipe Network." In 2009 Fifth International Conference on Natural Computation. IEEE, 2009. http://dx.doi.org/10.1109/icnc.2009.114.

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Kerimov, Bulat, Franz Tscheikner-Gratl, Riccardo Taormina, and David B. Steffelbauer. "The Shape of Water Distribution Systems - Describing local structures of water networks via graphlet analysis." In 2nd WDSA/CCWI Joint Conference. Editorial Universitat Politècnica de València, 2022. http://dx.doi.org/10.4995/wdsa-ccwi2022.2022.14784.

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The performance, vulnerability, and resilience of water distribution systems (WDS) are connected to its underlying topological structure (aka its shape). The literature mostly differentiates between two main shapes of networks - branched or looped. However, real networks come in various shapes and forms spanning between the two extremes of purely branched and looped types. Although these networks are globally topologically different, they may show high similarity on the local scale of a borough or a neighbourhood, or vice versa. Recent studies focused on describing WDS via graph theory represe
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Schohl, Gerald S. "Transient Flow Modeling of Networks With Both Implicit and Explicit Components." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45269.

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The computer code TFSIM simulates transient and steady flow in networks defined by any combination of explicit pipes, implicit pipes, implicit open channels, and various other implicit components. Flow in explicit pipes is modeled using the fixed-grid method of characteristics. Flow in implicit pipes and open channels is modeled using Preissmann’s weighted four-point scheme. For solution at each time step, a network is organized into explicit components and implicit clusters, where an implicit cluster is defined as a grouping of implicit components bounded by explicit components and external b
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Riyahi, Mohammad Mehdi, Amin E. Bakhshipour, Carlo Giudicianni, Ulrich Dittmer, Ali Haghighi, and Enrico Creaco. "An Analytical Solution for the Hydraulics of Looped Pipe Networks." In International Joint Conference on Water Distribution Systems Analysis & Computing and Control for the Water Industry. MDPI, 2024. http://dx.doi.org/10.3390/engproc2024069004.

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Zimbeck, Walter, Jared Chaney, Patricio Espinoza, Edward Kroliczek, David C. Bugby, and James Yun. "Ceramic Flat Plate Evaporator for Loop Heat Pipe Cooling of Electronics." In ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems collocated with the ASME 2005 Heat Transfer Summer Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/ipack2005-73124.

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Two-phase loops are extremely efficient devices for passively transporting heat over long distances with low temperature drop. The heat acquisition component of a two-phase loop, the evaporator, is commonly made from conventional metal materials (aluminum, copper, etc.) and has cylindrical geometry. Neither characteristic is optimally suited for close integration to common electronic or photonic heat sources, which generally have flat interfaces and are constructed from low thermal expansion coefficient (CTE) semiconductor materials. This paper describes the development of a ceramic flat plate
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Andre´, Jean, and Tony Pillay. "Increasing the Network Capacity: Is It Always the Best Choice?" In 2008 7th International Pipeline Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ipc2008-64258.

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A network is considered to be saturated when all operational constraints cannot be fulfilled. For a gas network, it can be observed when the operator cannot pipe the entire throughput or when it cannot deliver the flows at delivery points with high enough pressures. When a transportation or distribution network is overloaded, the common answer to improve flow and pressure conditions is to add new links or to increase the capacities of one or several existing links. On gas networks, this leads either to lay out new pipelines or to loop existing pipelines when we are close to the saturation. In
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