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In this paper we propose an SDN-based control plane for the University of Costa Rica. Our campus network faces heavy congestion problems and fails at providing adequate quality of service (QoS). Therefore, we describe a solution that leverages priority-traffic routing to ensure that important services (such as live video streaming) are not as heavily affected by congestion. To this end, we first survey...
Optimization of biodiesel production from non-edible Carica papaya seed oil was experimentally investigated in this study. Biodiesel production process parameters such as methanol: oil molar ratio, catalyst type and their concentrations, reaction temperature and reaction time were evaluated. It was found that the optimum process parameters for transesterification of the Carica papaya seed oil at an...
In this work, we treat a simultaneously integrated maintenance optimization problem for a power generation system by studying the case of wind turbine. The generation system composed by a wind turbine system in order to satisfy a randomly power demand under a given service level and during a finite horizon. The goal of this work is to develop a jointly energy production and maintenance strategy optimization...
This paper presents an optimized scheduling method for Plugged-in Electric Vehicles (PEV) that are connected to a residential smart microgrid. Two modes of operation are studied: grid-tied and islanded mode. A Genetic Algorithm (GA)-based method is utilized to optimize an objective function, which includes the cost of energy production, and guarantees the best possible energy consumption profile....
Microbial Fuel Cell (MFC) power production and Microbial Electrolysis Cell (MEC) organic production depend strongly on their dynamic environment conditions, like inlet substrate concentration, temperature, etc. This work presents a discrete extremum seeking controller to quickly tune the MFC and MEC electrical settings in order to achieve maximum performance irrespective of these dynamic environment...
At present we are facing a scenario characterized by the increasing exhaustion of the traditional sources of energy. The use of the Renewable Sources of Energy in Cuba is insufficient, since in some cases there is a lack of technologies, procedures and methods adjusted to the Cuban context for its effective use of this type of technology. A research related to these topics themes are carried out at...
The article is devoted to the long-term improvement of the Russian gas industry development model for the period of up to 2035. New approaches to forecasting gas production at major fields, transportation of pipeline gas and spot market gas purchases are being updated.
This paper demonstrates application of two optimization methods on the electric power system consisting of one large wind farm, two hydro power plants and two thermal power plants. First optimization algorithm deals only with cascaded hydro power plants in the system. The objective of the optimization is to find optimal dispatch (production) plan of two cascaded hydro power plants maximizing the profit...
A simple hydropower optimization problem is used to compare the computational efficiency of the Honey Bees Mating Optimization Algorithm (HBMOA), with the efficiency of other evolutionary algorithms, namely 3 recent ones: firefly algorithm, cuckoo search algorithm and bat-inspired algorithm (BA). The selected case study is a hydropower development on the Arges river, in Romania, consisting of Vidraru...
In water flooding oilfield, petroleum production is the most crucial target for production-injection wells system. An effective, informative and accurate production prediction facilitates parameter adjustment, production optimization, fault analysis and decrease in production cost. Some effective Artificial Intelligence (AI) technologies have been widely used in various kinds of industrial fields...
This paper presents an economic operation considered renewable energy which is optimized using thunderstorm algorithm. The problem is constrained by an emission standard and various technical limits implemented on the 62-bus system model. Simulations showed that the renewable energy inclusion penetrates to the unit commitment of generating units with strongly approach for the computational solution...
Due to the rapid development of intelligent lighting technologies, those intelligences, just like smooth dimming control, communication and networking, lumen control, predictive failure and maintenance, daylight harvesting, etc., which offers us a opportunity to incorporate non-traditional capabilities into our lighting design and makes the intelligent lighting solutions more attractive. Nowadays,...
The solution of the problem of construction of generalized model of production system optimal development is considered. Basis of the model — Bolza variational problem with integrated criterion of the first kind. Solution of the problem by numerical method is based on the method of optimal aggregation of “production, development” structures by simulation method of Hamilton function determination and...
In this paper the row-spacing and tilt trade-off, east-west orientation and adjustable tilt methods are discussed and evaluated as module layout optimisation methods which can be used to navigate some of the common design constraints in the solar PV sector. Site-related constraints and advancements in the photovoltaic (PV) industry over the past couple of years have necessitated the need to review...
Gas insulated metal enclosed line (GIL) has been widely applied in power transmission system due to its high safety and reliability level. Because of its cost saving production and excellent mechanical property, tri-post insulator is the key structure of insulation in GIL. Therefore, the safe operation of tri-post insulator determines the insulation strength level of GIL. Tri-post insulators have...
Optimisation problem concerning material flows, to increase the efficiency while reducing relative resource consumption is one of the most pressing problems today. The focus point of this study is to propose a new visual benchmarking approach to select the best material-flow path from the depot to the production lines, referring to the well-known Capacitated Vehicle Routing Problem (CVRP). An example...
A multicriteria economic problem is considered: the basic production assets and the labor resources define a set of feasible solutions (alternatives); labor costs, costs of the basic production assets (to be minimized), and cost of the manufactured products (to be maximized) are objective functions. The production function with constant elasticity of substitution is used. The decision maker's (DM's)...
This paper proposes an efficient methodology to optimally determine the best location and optimum size for Distributed Generators (DG), in a distribution network, while minimizing energy losses and improving voltage profile. The proposed methodology has been designed to consider variable demand and variable DG production scenarios, offering a set of optimum values for DG active power output and power...
The South African industrial sector is under significant financial pressure and need to reduce production costs to remain competitive in the global and local market. Some steel plants use reheating furnaces to reheat materials before hot rolling. These furnaces use industrial fuel gases as an energy source. Process by-product and purchased gases can be used as fuel. Inefficiencies in gas distribution...
This paper presents an optimal Day-Ahead Electricity Market (DAM) bidding strategy for an aggregator leveraging a pool of residential prosumers: residential customers with local photovoltaic (PV) production and plug-in electric vehicle (PEV) charging flexibility. The aggregator's point-of-view differs from the social planner angle that is taken in the majority of the existing literature, mainly the...
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