The Experts below are selected from a list of 204 Experts worldwide ranked by ideXlab platform
Carl D Laird - One of the best experts on this subject based on the ideXlab platform.
-
evaluation of chlorine Booster Station placement for water security
2019Co-Authors: Arpan Seth, Gaberiel A Hackebeil, Terranna Haxton, Regan Murray, Carl D Laird, Katherine A KliseAbstract:Abstract Drinking water utilities use Booster Stations to maintain chlorine residuals throughout water distribution systems. Booster Stations could also be used as part of an emergency response plan to minimize health risks in the event of an unintentional or malicious contamination incident. The benefit of Booster Stations for emergency response depends on several factors, including the reaction between chlorine and an unknown contaminant species, the fate and transport of the contaminant in the water distribution system, and the time delay between detection and initiation of boosted levels of chlorine. This paper takes these aspects into account and proposes a mixed-integer linear program formulation for optimizing the placement of Booster Stations for emergency response. A case study is used to explore the ability of optimally placed Booster Stations to reduce the impact of contamination in water distribution systems.
-
efficient reduction of optimal disinfectant Booster Station placement formulations for security of large scale water distribution networks
Engineering Optimization, 2017Co-Authors: Arpan Seth, Gaberiel A Hackebeil, Terranna Haxton, Regan Murray, Katherine A Klise, Carl D LairdAbstract:ABSTRACTIn response to a contamination incident in water distribution networks, disinfectant Booster Stations can be used to neutralize the contaminant and protect the public. In this paper, two mixed-integer linear programming formulations are proposed for optimal placement of disinfectant Booster Stations. The first formulation minimizes the contaminant mass consumed by the public, while the second formulation minimizes the number of people who ingest the contaminant above a mass threshold. The proposed formulations consider uncertainty in both the location and time of the contamination incident, resulting in an intractably large stochastic programming problem. This manuscript proposes a series of reductions that decrease the size of the problem by up to five orders of magnitude. The results show that the use of a small number of disinfectant Booster Stations can be very effective as a response strategy.
-
a stochastic programming formulation for disinfectant Booster Station placement to protect large scale water distribution systems
Computer-aided chemical engineering, 2012Co-Authors: Gaberiel A Hackebeil, Katherine A Klise, Angelica Mann, William E Hart, Carl D LairdAbstract:Abstract We present a methodology for optimally locating disinfectant Booster Stations for response to contamination events in water distribution systems. A stochastic programming problem considering uncertainty in both the location and time of the contamination event is formulated resulting in an extensive form that is equivalent to the weighted maximum coverage problem. Although the original full-space problem is intractably large, we show a series of reductions that reduce the size of the problem by five orders of magnitude and allow solutions of the optimal placement problem for realistically sized water network models.
B. Guidry - One of the best experts on this subject based on the ideXlab platform.
-
Power quality concerns and solutions
IEEE Industry Applications Magazine, 2005Co-Authors: R. Ellis, B. GuidryAbstract:The pipeline project discussed in this article involved building a new 70-m, 24-in diameter section of a petroleum products pipeline stretch and investigates power issues on a 2,500-hp pipeline Booster Station adjustable frequency drive. AFDs were originally intended only to be for soft starting, not for continuous use. The active front-end topology uses PWM switching of the rectifier, as well as a reactor/capacitor on the input, to limit harmonics being generated back in to power system.
-
Power quality concerns/solutions on a 2500 HP pipeline Booster Station adjustable frequency drive
IEEE Industry Applications Society 50th Annual Petroleum and Chemical Industry Conference 2003. Record of Conference Papers., 2003Co-Authors: R. Ellis, B. GuidryAbstract:This paper details power quality issues that arose on a utility power system related to a 2500 HP medium voltage, adjustable frequency drive (AFD) on a refined petroleum products pipeline Booster Station. Most recently manufactured medium voltage drives employ the use of higher pulse number rectifiers to achieve harmonic reduction and this AFD was no exception. An overview of the computer based modeling analysis that was undertaken to help solve the power quality concerns is presented. Harmonic measurements taken before and after additional mitigation was implemented are provided. The contributing factors in why these issues arose are identified. Criteria to help recognize when harmonic modeling should be carried out at the design stage are established.
Katherine A Klise - One of the best experts on this subject based on the ideXlab platform.
-
evaluation of chlorine Booster Station placement for water security
2019Co-Authors: Arpan Seth, Gaberiel A Hackebeil, Terranna Haxton, Regan Murray, Carl D Laird, Katherine A KliseAbstract:Abstract Drinking water utilities use Booster Stations to maintain chlorine residuals throughout water distribution systems. Booster Stations could also be used as part of an emergency response plan to minimize health risks in the event of an unintentional or malicious contamination incident. The benefit of Booster Stations for emergency response depends on several factors, including the reaction between chlorine and an unknown contaminant species, the fate and transport of the contaminant in the water distribution system, and the time delay between detection and initiation of boosted levels of chlorine. This paper takes these aspects into account and proposes a mixed-integer linear program formulation for optimizing the placement of Booster Stations for emergency response. A case study is used to explore the ability of optimally placed Booster Stations to reduce the impact of contamination in water distribution systems.
-
efficient reduction of optimal disinfectant Booster Station placement formulations for security of large scale water distribution networks
Engineering Optimization, 2017Co-Authors: Arpan Seth, Gaberiel A Hackebeil, Terranna Haxton, Regan Murray, Katherine A Klise, Carl D LairdAbstract:ABSTRACTIn response to a contamination incident in water distribution networks, disinfectant Booster Stations can be used to neutralize the contaminant and protect the public. In this paper, two mixed-integer linear programming formulations are proposed for optimal placement of disinfectant Booster Stations. The first formulation minimizes the contaminant mass consumed by the public, while the second formulation minimizes the number of people who ingest the contaminant above a mass threshold. The proposed formulations consider uncertainty in both the location and time of the contamination incident, resulting in an intractably large stochastic programming problem. This manuscript proposes a series of reductions that decrease the size of the problem by up to five orders of magnitude. The results show that the use of a small number of disinfectant Booster Stations can be very effective as a response strategy.
-
a stochastic programming formulation for disinfectant Booster Station placement to protect large scale water distribution systems
Computer-aided chemical engineering, 2012Co-Authors: Gaberiel A Hackebeil, Katherine A Klise, Angelica Mann, William E Hart, Carl D LairdAbstract:Abstract We present a methodology for optimally locating disinfectant Booster Stations for response to contamination events in water distribution systems. A stochastic programming problem considering uncertainty in both the location and time of the contamination event is formulated resulting in an extensive form that is equivalent to the weighted maximum coverage problem. Although the original full-space problem is intractably large, we show a series of reductions that reduce the size of the problem by five orders of magnitude and allow solutions of the optimal placement problem for realistically sized water network models.
-
formulation of chlorine and decontamination Booster Station optimization problem
World Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability, 2011Co-Authors: Terranna Haxton, Regan Murray, Katherine A Klise, W Hart, C PhillipsAbstract:A commonly used indicator of water quality is the amount of residual chlorine in a water distribution system. Chlorine Booster Stations are often utilized to maintain acceptable levels of residual chlorine throughout the network. In addition, hyper-chlorination has been used to disinfect portions of the distribution system following a pipe break. Consequently, it is natural to use hyper-chlorination via multiple Booster Stations located throughout a network to mitigate consequences and decontaminate networks after a contamination event. Many researchers have explored different methodologies for optimally locating Booster Stations in the network for daily operations. In this research, the problem of optimally locating chlorine Booster Stations to decontaminate following a contamination incident will be described.
Elcin Kentel - One of the best experts on this subject based on the ideXlab platform.
-
identification of the best Booster Station network for a water distribution system
Journal of Water Resources Planning and Management, 2015Co-Authors: Tamer M Ayvaz, Elcin KentelAbstract:AbstractA fuzzy decision-making framework (DMF) is combined with a hybrid genetic algorithm–linear programming (GA-LP) optimization approach to determine the best Booster Station network for a water distribution system. The proposed hybrid GA-LP model simultaneously optimizes two conflicting objectives; namely, minimization of total chlorine injection dosage and the number of Booster Stations. At the same time, residual chlorine concentrations are kept within desired limits. Adjustment of the relative importance of two conflicting objectives results in different optimal solutions. Selection of the best alternative among these optimal solutions is performed through a fuzzy multiobjective DMF. The proposed DMF allows incorporation of the decision makers’ preferences into the Booster Station network design. In this study, three fuzzy objectives are selected based on economic, operational, and health-related concerns. The hybrid GA-LP model is applied to a case study, and results show that the proposed method...
R. Ellis - One of the best experts on this subject based on the ideXlab platform.
-
Power quality concerns and solutions
IEEE Industry Applications Magazine, 2005Co-Authors: R. Ellis, B. GuidryAbstract:The pipeline project discussed in this article involved building a new 70-m, 24-in diameter section of a petroleum products pipeline stretch and investigates power issues on a 2,500-hp pipeline Booster Station adjustable frequency drive. AFDs were originally intended only to be for soft starting, not for continuous use. The active front-end topology uses PWM switching of the rectifier, as well as a reactor/capacitor on the input, to limit harmonics being generated back in to power system.
-
Power quality concerns/solutions on a 2500 HP pipeline Booster Station adjustable frequency drive
IEEE Industry Applications Society 50th Annual Petroleum and Chemical Industry Conference 2003. Record of Conference Papers., 2003Co-Authors: R. Ellis, B. GuidryAbstract:This paper details power quality issues that arose on a utility power system related to a 2500 HP medium voltage, adjustable frequency drive (AFD) on a refined petroleum products pipeline Booster Station. Most recently manufactured medium voltage drives employ the use of higher pulse number rectifiers to achieve harmonic reduction and this AFD was no exception. An overview of the computer based modeling analysis that was undertaken to help solve the power quality concerns is presented. Harmonic measurements taken before and after additional mitigation was implemented are provided. The contributing factors in why these issues arose are identified. Criteria to help recognize when harmonic modeling should be carried out at the design stage are established.
