Productos de investigación
Recent Submissions
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Study of early P91 dual corrosion in steam and simulated combustion gases from a gas-fired boile
(Cartagena de Indias, 2021-07-25)P91 ferritic steel pipes face dual environments during boilers operation: steam-side and fire-side. This P91 steel assessment differs from the dual studies performed to simulate coal-fired boilers -oxyfuel/steam atmospheres- ... -
Simultaneous Minimization of Energy Losses and Greenhouse Gas Emissions in AC Distribution Networks Using BESS
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-04-22)The problem of the optimal operation of battery energy storage systems (BESSs) in AC grids is addressed in this paper from the point of view of multi-objective optimization. A nonlinear programming (NLP) model is presented ... -
Production system in a collaborative supply chain considering deterioration
(Cartagena de Indias, 2021-06-24)This research presents a mathematical model for a collaborative planning of the supply chain involving four echelons (supplier, production plants, distribution, retails, or clients). The model seeks to maximize profit ... -
Advanced exergy and exergoeconomic analysis of a gas power system with steam Injection and air cooling with a compression refrigeration machine
(Cartagena de Indias, 2021-03-03)Gas turbine power plants have been widely studied, and as a result the negative effects on their output power and thermal efficiency have been known when operating in atmospheric conditions exceeding ISO conditions. For ... -
On the mathematical modeling for optimal selecting of calibers of conductors in DC radial distribution networks: An MINLP approach
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-02-15)This paper addresses the problem of optimal conductor selection in direct current (DC) distribution networks with radial topology. A nonlinear mixed-integer programming model (MINLP) is developed through a branch-to-node ... -
Assessing and classification of academic efficiency in engineering teaching programs
(Cartagena de Indias, 2021-03-31)This research uses a three-phase method to evaluate and forecast the academic efficiency of engineering programs. In the first phase, university profiles are created through cluster analysis. In the second phase, the ... -
Genetic-convex model for dynamic reactive power compensation in distribution networks using D-STATCOMs
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-04-21)This paper proposes a new hybrid master–slave optimization approach to address the problem of the optimal placement and sizing of distribution static compensators (D-STATCOMs) in electrical distribution grids. The optimal ... -
Substituted heterocycles as new candidates for liquid organic hydrogen carriers: In silico design from DFT calculations
(Cartagena de Indias, 2021-02-24)A new set of compounds based on N- and S-heterocycles were investigated through Density Functional Theory (DFT) for their use as liquid organic hydrogen carriers (LOHCs). The hydrogenated forms of these compounds could ... -
The equivalence between successive approximations and matricial load flow formulations
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-03-24)This paper shows the equivalence of the matricial form of the classical backward/forward load flow formulation for distribution networks with the recently developed successive approximations (SA) load flow approach. Both ... -
Advanced Exergy and Exergoeconomic Analysis of a Gas Power System with Steam Injection and Air Cooling with a Compression Refrigeration Machine
(Cartagena de Indias, 2020-03-03) -
Application of the vortex search algorithm to the phase-balancing problem in distribution systems
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-02-26)This article discusses the problem of minimizing power loss in unbalanced distribution systems through phase-balancing. This problem is represented by a mixed-integer nonlinear-programming mathematical model, which is ... -
Mean Dimension and Metric Mean Dimension for Non-autonomous Dynamical Systems
(Cartagena de Indias, 2020-10-07)In this paper we extend the definitions of mean dimension and metric mean dimension for non-autonomous dynamical systems. We show some properties of this extension and furthermore some applications to the mean dimension ... -
Social representations of media reception during the COVID-19 lockdown in Colombia: from messages to meanings
(Cartagena de Indias, 2020-07-14)Las investigaciones recientes sobre la COVID-19 se han centrado en los efectos de esta pandemia en la salud pública, así como en los controles de bio seguridad y sus implicaciones socioeconómicas. El presente estudio ... -
Efficient operative cost reduction in distribution grids considering the optimal placement and sizing of d-statcoms using a discrete-continuous vsa
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-03-02)The problem of reactive power compensation in electric distribution networks is addressed in this research paper from the point of view of the combinatorial optimization using a new discrete-continuous version of the vortex ... -
Reduction of losses and operating costs in distribution networks using a genetic algorithm and mathematical optimization
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-02-09)This study deals with the minimization of the operational and investment cost in the distribution and operation of the power flow considering the installation of fixed-step capacitor banks. This issue is represented by a ... -
Accurate and efficient derivative-free three-phase power flow method for unbalanced distribution networks
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-05-27)The power flow problem in three-phase unbalanced distribution networks is addressed in this research using a derivative-free numerical method based on the upper-triangular matrix. The upper-triangular matrix is obtained ... -
Dynamic reactive power compensation in power systems through the optimal siting and sizing of photovoltaic sources
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-05-11)The problem of the optimal placement and sizing of photovoltaic power plants in electrical power systems from high- to medium-voltage levels is addressed in this research from the point of view of the exact mathematical ... -
Passivity-based control of islanded microgrids with unknown power loads
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2020-10-12)In this paper, the control problem of microgrids (MGs)operating in islanded mode is approached from a passivity-based control perspective. A control scheme is proposed that, relying only on local measurements for the power ... -
Soft-computing approaches for rescheluding problems in a manufacturing industry
(Cartagena de Indias, 2020-03-02)Flexible manufacturing systems as technological and automated structures have a high complexity for scheduling. The decision-making process is made difficult with interruptions that may occur in the system and these problems ... -
Diseño de un sistema integrado de gestión de la calidad para programas académicos de educación superior en Colombia
(Cartagena de Indias, 2020-04-29)En esta investigación se propone un sistema integrado de gestión de la calidad considerando las exigencias legales, la norma ISO 9001 y los lineamientos para acreditación de alta calidad para programas académicos de ...
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