adalberto ospino - Academia.edu (original) (raw)

Papers by adalberto ospino

Research paper thumbnail of Optimization of anaerobic digestion through automatic control with neural networks: a bibliometric analysis

Aibi revista de investigación, administración e ingeniería, 2023

The present work was carried out with the objective of presenting the current importance of work ... more The present work was carried out with the objective of presenting the current importance of work related to the optimization of anaerobic digesters using artificial neural networks. A scientometric methodological approach was used for a systematic review of the publications indexed in Scopus until 2023. The H index was used to evaluate the visibility and impact of the journals, authors, countries, and institutions with the highest levels of production and recognition in the field of study. This review also allowed us to analyze the interaction between groups and knowledge networks with the authors and institutions identified in the classification. The results show a significant increase in the number of publications between the years 1973 and 2023, which allow us to characterize on a scale the main dimensions of research, development and innovation related to the study of optimization methods of anaerobic biodigesters for the production of biogas from different waste such as that from the palm oil extraction process. The results show a significant increase in the number of publications between 2016 and 2023, a total of 2847 documents were found, where 95.64% are in English. The country that presents the most publications on the topic is China with a contribution of 19.28%, followed by the United States with 9.8%, India with 7.2% and Spain with 6.2% among others.

Research paper thumbnail of Analysis of the Impact of Integrating Variable Renewable Energy into the Power System in the Colombian Caribbean Region

Energies

This paper compares the effects of adding solar and wind power to the power system of Colombia’s ... more This paper compares the effects of adding solar and wind power to the power system of Colombia’s Caribbean region and its connections to the National Interconnected System. A base scenario was simulated in the PowerFactory 2003 software considering the actual data of the power system in 2023, and then, they were compared with the results obtained for 2033, considering the growth of the network and the addition of new power plants based on variable renewable energy. The comparison analyzes the impact of the newly added renewable energy in the power system on the voltage stability and system frequency. The results obtained show that the addition of new variable renewable energy plants generates voltage fluctuations in the lower voltage levels, ranging from 1% to 3.1%, which indicates potential challenges in maintaining the voltage stability. In higher voltages, no significant variations were found. Regarding the system frequency, the transient value tends to increase but is within the...

Research paper thumbnail of Analysis of energy production with different photovoltaic technologies in the Colombian geography

IOP conference series, Jun 6, 2014

This research has analyzed the photovoltaic technologies, Polycrystalline silicon, Monocrystallin... more This research has analyzed the photovoltaic technologies, Polycrystalline silicon, Monocrystalline Silicon, GIS, Cadmium Tellurium and Amorphous Silicon; in eight cities of the Colombian territory, in order to obtain a clear idea of what is the most appropriate for each city or region studied. PVsyst simulation software has been used to study in detail each photovoltaic technology, for an installed capacity of 100kW knowing the specific data of losses by temperature, mismatch, efficiency, wiring, angle inclination of the arrangement, among others

Research paper thumbnail of Analysis of mismatch and shading effects in a photovoltaic array using different technologies

IOP conference series, Jun 6, 2014

Research paper thumbnail of Selección de la combinación energética óptima y el tamaño de una microrred aislada

Este documento, presenta un procedimiento resultante de una investigacion en la que se analizaron... more Este documento, presenta un procedimiento resultante de una investigacion en la que se analizaron las estrategias y criterios de suministro y consumo para conseguir que una microred se planifique de manera optima desde el punto de vista tecnico como economico. Se muestra como se aplico el procedimiento en una zona aislada de la red Necocli – Colombia, para la cual se obtuvo datos de consumo energetico y de disponibilidad de recursosenergeticos renovables, suministrados por el Instituto de Planificacion deSoluciones Energeticas IPSE, entidad responsable del suministro energeticopara zonas aisladas de este pais.

Research paper thumbnail of A Review: Integration of Renewable Energies in the Sustainability of the Electric Distribution Grid

International Journal of Energy Economics and Policy

This Article submits a review of the integration of renewable energies in the contemporary distri... more This Article submits a review of the integration of renewable energies in the contemporary distribution of generated energy. A technological supervision is implemented to observe in a systematic manner the behavior of state of the art technologies in renewable energies, in the search of energetic sustainability, making an analysis of the distribution of the most representative Microgrids at world level. It is to be noted, the great inclusion of energy obtained through solar panels, and Eolic generators. However, there is a great participation of generators from diesel vapor, and gas; while in the storage system batteries are predominant, and sometimes, flywheels and supercapacitors surface. These results are possibly due to the promotion and experience of including new techniques and use of energy resource methodologies.

Research paper thumbnail of Decision-Making Support Framework for Electricity Supply in Non-Interconnected Rural Areas Based on FAHP

International Journal of Energy Economics and Policy

The implementation of electrification programs in non-interconnected rural areas in Colombia is a... more The implementation of electrification programs in non-interconnected rural areas in Colombia is a challenge for the country in order to reduce the social gap in these regions. This task is responsibility of the Mining and Energy Planning Unit (UPME), which has as challenges the implementation of renewable energy projects that allow diversifying the national energy matrix. For this reason, this paper proposes a support framework for multicriteria decision-making in the electricity supply of non-interconnected rural areas for the Colombian Caribbean Region. The multicriteria method of the Fuzzy Analytical Hierarchical Process (FAHP) was used, which allows the incorporation of a fuzzy triangular scale to improve the imprecision in the judgments made by experts. A hierarchical structure with 6 renewable energy alternatives, 4 criteria and 16 sub-criteria was designed, which allowed the implementation of a paired comparison survey that was answered by 10 experts from the region. The resu...

Research paper thumbnail of Calculation of total, direct and difusse radiation, through the atmospheric transmissivity in the departments of Cesar, La Guajira and Magdalena (Colombia)

El gobierno colombiano aprobó en mayo de 2014 la Ley 1715, en la cual se promueve el “desarrollo ... more El gobierno colombiano aprobó en mayo de 2014 la Ley 1715, en la cual se promueve el “desarrollo y utilización de las fuentes no convencionales de energía (FNCE) en el sistema energético nacional, principalmente aquellas que son de carácter renovable. La marcada necesidad de integrar las FNCE al sistema energético nacional hace necesaria la cuantificación y caracterización de la radiación incidente en la zona norte de Colombia, específicamente en el departamento de La Guajira, lo que conllevó a un estudio más específico donde se evaluaron distintas variables de tipo geométrico, geográfico, astronómico, físico y meteorológico. Este trabajo presenta un análisis de la cuantificación y caracterización de la radiación solar a partir del estudio de datos meteorológicos suministrados por el Instituto de Hidrología, Meteorología y Estudios Ambientales de Colombia (IDEAM) de distintas estaciones ubicadas en el departamento de La Guajira con registros climáticos de más de cinco años y evaluad...

Research paper thumbnail of Una nueva capa de protección a través de súper alarmas con capacidad de diagnóstico

An alarm management methodology can be proposed as a discrete event sequence recognition problem ... more An alarm management methodology can be proposed as a discrete event sequence recognition problem where time patterns are used to identify the process safe condition, especially in the start-up and shutdown stages. Industrial plants, particularly in the petrochemical, energy, and chemical sectors, require a combined approach of all the events that can result in a catastrophic accident. This document introduces a new layer of protection (super-alarm) for industrial processes based on a diagnostic stage. Alarms and actions of the standard operating procedure are considered discrete events involved in sequences, where the diagnostic stage corresponds to the recognition of a special situation when these sequences occur. This is meant to provide operators with pertinent information regarding the normal or abnormal situations induced by the flow of alarms. Chronicles Based Alarm Management (CBAM) is the methodology used to build the chronicles that will permit to generate the super-alarms ...

Research paper thumbnail of Analysis of the Integration of Drift Detection Methods in Learning Algorithms for Electrical Consumption Forecasting in Smart Buildings

Sustainability

Buildings are currently among the largest consumers of electrical energy with considerable increa... more Buildings are currently among the largest consumers of electrical energy with considerable increases in CO2 emissions in recent years. Although there have been notable advances in energy efficiency, buildings still have great untapped savings potential. Within demand-side management, some tools have helped improve electricity consumption, such as energy forecast models. However, because most forecasting models are not focused on updating based on the changing nature of buildings, they do not help exploit the savings potential of buildings. Considering the aforementioned, the objective of this article is to analyze the integration of methods that can help forecasting models to better adapt to the changes that occur in the behavior of buildings, ensuring that these can be used as tools to enhance savings in buildings. For this study, active and passive change detection methods were considered to be integrators in the decision tree and deep learning models. The results show that consta...

Research paper thumbnail of Evaluación del desempeño de los modelos de un diodo y dos diodos para módulos fotovoltaicos

Revista ESPACIOS, Sep 24, 2020

Research paper thumbnail of Design and performance evaluation of a solar tracking panel of single axis in Colombia

International Journal of Electrical and Computer Engineering (IJECE), 2021

This paper presents the mechanical design of a single axis solar tracking system, as well as the ... more This paper presents the mechanical design of a single axis solar tracking system, as well as the electronic design of a system that to record in real time the electric power delivered by the solar tracker and to evaluate its performance. The interface was developed in Labview and it compares the power supplied by the tracker with the power supplied by static solar panel of the same characteristics. The performance is initially simulated using Pv-Syst software, and later validated with the data obtained by the interface. As a result, the use of the solar tracker increases the power delivered by a minimum of 19%, and it can go as high as 47.84%, with an average in increase in power of 19.5% in the monthly energy production. This experimental result was compared with the simulation by Pv-Syst software and shows a difference of only 2.5%, thus validating the reliability of the simulation. This behavior pattern coincides with previous studies carried out for equatorial latitudes.

Research paper thumbnail of Selecting the optimal energy mix and sizing of a isolated microgrid

INGE@UAN - TENDENCIAS EN LA INGENIERÍA; Vol. 4 Núm. 7 (2013), Jun 16, 2021

Research paper thumbnail of Evaluation of Eleven Numerical Methods for Determining Weibull Parameters for Wind Energy Generation in the Caribbean Region of Colombia

Mathematical Modelling of Engineering Problems, 2022

The two-parameter Weibull probability density function (PDF) is widely utilized by different rese... more The two-parameter Weibull probability density function (PDF) is widely utilized by different researchers and engineers to fit wind speed data for statistical analysis and modeling. The characterization of wind resources in the frequency and probability domain is necessary to estimate the power output potential of new wind energy projects. Considering that exist a variety of Weibull equations evidenced in the literature review, this article evaluates 11 different methods to calculate the shape and scale parameters of the Weibull PDF. In this sense, it was written an algorithm within a Matlab function that solves the 11 methods for calculating the Weibull PDF parameters. Wind speed data extracted from the ERA5 database was used as input data for applying the proposed algorithm, and statistical parameters such as the Root Mean Square Error (RMSE), the Relative Root Mean Square Error (RRMSE), and chi-square test (X2) we utilized for assessing the performance of each one of the 11 method...

Research paper thumbnail of Technical and Financial Assessment of Photovoltaic Solar Systems for Residential Complexes Considering Three Different Commercial Technologies and Colombia’s Energy Policy

International Journal of Energy Economics and Policy, 2021

The use of solar energy is increasingly prevalent in residential areas around the world due to th... more The use of solar energy is increasingly prevalent in residential areas around the world due to the decrease in the levelized cost of energy (LCOE) for projects that meet the energy need in homes, in Colombia regulations have begun to facilitate the integration of grid-connected renewable energy projects and in isolated areas. The purpose of this research is to technically and financially assess the feasibility of a solar photovoltaic system connected to the grid in a residential complex in Colombia according to the regulatory framework in force at 2020, comparing three photovoltaic module technologies, as well as three generation scenarios (self-consumption, exchange with the network and sale of surpluses), financial feasibility was assessed taking into account three financial goodness criteria (NPV, IRR and Payback Time). The results of the research indicate that the most feasible generation scenario technically and economically is self-consumption using Si-Poly technology, for the self-consumption scenario the solar photovoltaic system requires an installed capacity of 3.77 kW peak, with an investment cost of 5,748USD,accordingtothecriteriaofkindnessthePaybackTimeis7years,withanIRRof19.675,748 USD, according to the criteria of kindness the Payback Time is 7 years, with an IRR of 19.67% for the project and 5,748USD,accordingtothecriteriaofkindnessthePaybackTimeis7years,withanIRRof19.6749,920 USD of NPV.

Research paper thumbnail of Super-Alarms with Diagnosis Proficiency Used as an Additional Layer of Protection Applied to an Oil Transport System

Entropy, 2021

In automated plants, particularly in the petrochemical, energy, and chemical industries, the comb... more In automated plants, particularly in the petrochemical, energy, and chemical industries, the combined management of all of the incidents that can produce a catastrophic accident is required. In order to do this, an alarm management methodology can be formulated as a discrete event sequence recognition problem, in which time patterns are used to identify the safe condition of the process, especially in the start-up and shutdown stages. In this paper, a new layer of protection (a Super-Alarm), based on the diagnostic stage to industrial processes is presented. The alarms and actions of the standard operating procedures are considered to be discrete events involved in sequences; the diagnostic stage corresponds to the recognition of the situation when these sequences occur. This provides operators with pertinent information about the normal or abnormal situations induced by the flow of the alarms. Chronicles Based Alarm Management (CBAM) is the methodology used in this document to buil...

Research paper thumbnail of Economic and Energy Analysis of Small Capacity Grid-connected Hybrid Photovoltaic-wind Systems in Mexico

International Journal of Energy Economics and Policy, 2019

The integration of renewable energies in the electric power system, as a solution to the growing ... more The integration of renewable energies in the electric power system, as a solution to the growing demand for electricity in developing countries, has become a vital issue, such is the case of Mexico. The purpose of this work is the assessment of the economic and energy feasibility of a residential house grid-connected hybrid PV-Wind system, in Mexico. The hybrid PV-Wind system design is based on the existing renewable energy resources and considering a typical load profile. Also, an economic analysis is presented based on the two schemes approved for the sale of the surplus of the energy generated in Mexico: net billing and net metering. The results obtained demonstrate the viability and profitability of the proposed small-size system. However, the results corroborate that government incentives are crucial to making the proposed system more attractive and affordable for residential users.

Research paper thumbnail of Future Scenarios and Trends of Energy Demand in Colombia using Long-range Energy Alternative Planning

The prospective of Colombia’s energy demand will be defined by economic, social, cultural and pol... more The prospective of Colombia’s energy demand will be defined by economic, social, cultural and political phenomena. Modeling the factors that determine demand can be broadly divided into quantitative and qualitative. The quantitative phenomena, demography, energy efficiency and the direct consumption of fuels; qualitative effects are specific conditions, which are defined within each scenario as variables that will have effects on quantitative phenomena. In the baseline scenario, the transportation sector is expected to remain as the largest representative of Colombia’s energy demand, although its participation in the year 2050 will be reduced by approximately 7%. The residential sector will have a reduced growth supported by the law 1715 that will increase distributed generation and implement more efficient lighting systems. A scenario focused on energy diversification shows a reduction in demand since the short term. Transport sector is maintained with similar behaviors in all scen...

Research paper thumbnail of Cálculo de las radiaciones total, directa y difusa a través de la transmisibilidad atmosférica en los departamentos del Cesar, La Guajira y Magdalena (Colombia)

Research paper thumbnail of Dual-Axis Solar Tracker for Using in Photovoltaic Systems

International Journal of Renewable Energy Research, 2017

This paper presents a dual-axis solar tracker based on a real-time measurement of solar radiation... more This paper presents a dual-axis solar tracker based on a real-time measurement of solar radiation. For this, Matlab-Simulink was used to perform the dynamic model of: solar radiation, electromechanical system and solar panel. The implementation of the solar tracker was performed using a digital controller that processes signals from radiation sensors and inertial measurement unit. The acquired data are contrasted with a mathematical algorithm to calculate sun’s position and set the control action to orient the panel. A real-time processing system with internal memory capacity was developed, which considers the relative position between the radiation sensor and solar panel to improve system efficiency. The obtained simulation results confirm the approach robustness. Preliminary results with the solar tracker show a maximum increase of 9.87% in the energy obtained from dual-axis solar panel compared with energy from a fixed panel optimally oriented. The tests were performed using two ...

Research paper thumbnail of Optimization of anaerobic digestion through automatic control with neural networks: a bibliometric analysis

Aibi revista de investigación, administración e ingeniería, 2023

The present work was carried out with the objective of presenting the current importance of work ... more The present work was carried out with the objective of presenting the current importance of work related to the optimization of anaerobic digesters using artificial neural networks. A scientometric methodological approach was used for a systematic review of the publications indexed in Scopus until 2023. The H index was used to evaluate the visibility and impact of the journals, authors, countries, and institutions with the highest levels of production and recognition in the field of study. This review also allowed us to analyze the interaction between groups and knowledge networks with the authors and institutions identified in the classification. The results show a significant increase in the number of publications between the years 1973 and 2023, which allow us to characterize on a scale the main dimensions of research, development and innovation related to the study of optimization methods of anaerobic biodigesters for the production of biogas from different waste such as that from the palm oil extraction process. The results show a significant increase in the number of publications between 2016 and 2023, a total of 2847 documents were found, where 95.64% are in English. The country that presents the most publications on the topic is China with a contribution of 19.28%, followed by the United States with 9.8%, India with 7.2% and Spain with 6.2% among others.

Research paper thumbnail of Analysis of the Impact of Integrating Variable Renewable Energy into the Power System in the Colombian Caribbean Region

Energies

This paper compares the effects of adding solar and wind power to the power system of Colombia’s ... more This paper compares the effects of adding solar and wind power to the power system of Colombia’s Caribbean region and its connections to the National Interconnected System. A base scenario was simulated in the PowerFactory 2003 software considering the actual data of the power system in 2023, and then, they were compared with the results obtained for 2033, considering the growth of the network and the addition of new power plants based on variable renewable energy. The comparison analyzes the impact of the newly added renewable energy in the power system on the voltage stability and system frequency. The results obtained show that the addition of new variable renewable energy plants generates voltage fluctuations in the lower voltage levels, ranging from 1% to 3.1%, which indicates potential challenges in maintaining the voltage stability. In higher voltages, no significant variations were found. Regarding the system frequency, the transient value tends to increase but is within the...

Research paper thumbnail of Analysis of energy production with different photovoltaic technologies in the Colombian geography

IOP conference series, Jun 6, 2014

This research has analyzed the photovoltaic technologies, Polycrystalline silicon, Monocrystallin... more This research has analyzed the photovoltaic technologies, Polycrystalline silicon, Monocrystalline Silicon, GIS, Cadmium Tellurium and Amorphous Silicon; in eight cities of the Colombian territory, in order to obtain a clear idea of what is the most appropriate for each city or region studied. PVsyst simulation software has been used to study in detail each photovoltaic technology, for an installed capacity of 100kW knowing the specific data of losses by temperature, mismatch, efficiency, wiring, angle inclination of the arrangement, among others

Research paper thumbnail of Analysis of mismatch and shading effects in a photovoltaic array using different technologies

IOP conference series, Jun 6, 2014

Research paper thumbnail of Selección de la combinación energética óptima y el tamaño de una microrred aislada

Este documento, presenta un procedimiento resultante de una investigacion en la que se analizaron... more Este documento, presenta un procedimiento resultante de una investigacion en la que se analizaron las estrategias y criterios de suministro y consumo para conseguir que una microred se planifique de manera optima desde el punto de vista tecnico como economico. Se muestra como se aplico el procedimiento en una zona aislada de la red Necocli – Colombia, para la cual se obtuvo datos de consumo energetico y de disponibilidad de recursosenergeticos renovables, suministrados por el Instituto de Planificacion deSoluciones Energeticas IPSE, entidad responsable del suministro energeticopara zonas aisladas de este pais.

Research paper thumbnail of A Review: Integration of Renewable Energies in the Sustainability of the Electric Distribution Grid

International Journal of Energy Economics and Policy

This Article submits a review of the integration of renewable energies in the contemporary distri... more This Article submits a review of the integration of renewable energies in the contemporary distribution of generated energy. A technological supervision is implemented to observe in a systematic manner the behavior of state of the art technologies in renewable energies, in the search of energetic sustainability, making an analysis of the distribution of the most representative Microgrids at world level. It is to be noted, the great inclusion of energy obtained through solar panels, and Eolic generators. However, there is a great participation of generators from diesel vapor, and gas; while in the storage system batteries are predominant, and sometimes, flywheels and supercapacitors surface. These results are possibly due to the promotion and experience of including new techniques and use of energy resource methodologies.

Research paper thumbnail of Decision-Making Support Framework for Electricity Supply in Non-Interconnected Rural Areas Based on FAHP

International Journal of Energy Economics and Policy

The implementation of electrification programs in non-interconnected rural areas in Colombia is a... more The implementation of electrification programs in non-interconnected rural areas in Colombia is a challenge for the country in order to reduce the social gap in these regions. This task is responsibility of the Mining and Energy Planning Unit (UPME), which has as challenges the implementation of renewable energy projects that allow diversifying the national energy matrix. For this reason, this paper proposes a support framework for multicriteria decision-making in the electricity supply of non-interconnected rural areas for the Colombian Caribbean Region. The multicriteria method of the Fuzzy Analytical Hierarchical Process (FAHP) was used, which allows the incorporation of a fuzzy triangular scale to improve the imprecision in the judgments made by experts. A hierarchical structure with 6 renewable energy alternatives, 4 criteria and 16 sub-criteria was designed, which allowed the implementation of a paired comparison survey that was answered by 10 experts from the region. The resu...

Research paper thumbnail of Calculation of total, direct and difusse radiation, through the atmospheric transmissivity in the departments of Cesar, La Guajira and Magdalena (Colombia)

El gobierno colombiano aprobó en mayo de 2014 la Ley 1715, en la cual se promueve el “desarrollo ... more El gobierno colombiano aprobó en mayo de 2014 la Ley 1715, en la cual se promueve el “desarrollo y utilización de las fuentes no convencionales de energía (FNCE) en el sistema energético nacional, principalmente aquellas que son de carácter renovable. La marcada necesidad de integrar las FNCE al sistema energético nacional hace necesaria la cuantificación y caracterización de la radiación incidente en la zona norte de Colombia, específicamente en el departamento de La Guajira, lo que conllevó a un estudio más específico donde se evaluaron distintas variables de tipo geométrico, geográfico, astronómico, físico y meteorológico. Este trabajo presenta un análisis de la cuantificación y caracterización de la radiación solar a partir del estudio de datos meteorológicos suministrados por el Instituto de Hidrología, Meteorología y Estudios Ambientales de Colombia (IDEAM) de distintas estaciones ubicadas en el departamento de La Guajira con registros climáticos de más de cinco años y evaluad...

Research paper thumbnail of Una nueva capa de protección a través de súper alarmas con capacidad de diagnóstico

An alarm management methodology can be proposed as a discrete event sequence recognition problem ... more An alarm management methodology can be proposed as a discrete event sequence recognition problem where time patterns are used to identify the process safe condition, especially in the start-up and shutdown stages. Industrial plants, particularly in the petrochemical, energy, and chemical sectors, require a combined approach of all the events that can result in a catastrophic accident. This document introduces a new layer of protection (super-alarm) for industrial processes based on a diagnostic stage. Alarms and actions of the standard operating procedure are considered discrete events involved in sequences, where the diagnostic stage corresponds to the recognition of a special situation when these sequences occur. This is meant to provide operators with pertinent information regarding the normal or abnormal situations induced by the flow of alarms. Chronicles Based Alarm Management (CBAM) is the methodology used to build the chronicles that will permit to generate the super-alarms ...

Research paper thumbnail of Analysis of the Integration of Drift Detection Methods in Learning Algorithms for Electrical Consumption Forecasting in Smart Buildings

Sustainability

Buildings are currently among the largest consumers of electrical energy with considerable increa... more Buildings are currently among the largest consumers of electrical energy with considerable increases in CO2 emissions in recent years. Although there have been notable advances in energy efficiency, buildings still have great untapped savings potential. Within demand-side management, some tools have helped improve electricity consumption, such as energy forecast models. However, because most forecasting models are not focused on updating based on the changing nature of buildings, they do not help exploit the savings potential of buildings. Considering the aforementioned, the objective of this article is to analyze the integration of methods that can help forecasting models to better adapt to the changes that occur in the behavior of buildings, ensuring that these can be used as tools to enhance savings in buildings. For this study, active and passive change detection methods were considered to be integrators in the decision tree and deep learning models. The results show that consta...

Research paper thumbnail of Evaluación del desempeño de los modelos de un diodo y dos diodos para módulos fotovoltaicos

Revista ESPACIOS, Sep 24, 2020

Research paper thumbnail of Design and performance evaluation of a solar tracking panel of single axis in Colombia

International Journal of Electrical and Computer Engineering (IJECE), 2021

This paper presents the mechanical design of a single axis solar tracking system, as well as the ... more This paper presents the mechanical design of a single axis solar tracking system, as well as the electronic design of a system that to record in real time the electric power delivered by the solar tracker and to evaluate its performance. The interface was developed in Labview and it compares the power supplied by the tracker with the power supplied by static solar panel of the same characteristics. The performance is initially simulated using Pv-Syst software, and later validated with the data obtained by the interface. As a result, the use of the solar tracker increases the power delivered by a minimum of 19%, and it can go as high as 47.84%, with an average in increase in power of 19.5% in the monthly energy production. This experimental result was compared with the simulation by Pv-Syst software and shows a difference of only 2.5%, thus validating the reliability of the simulation. This behavior pattern coincides with previous studies carried out for equatorial latitudes.

Research paper thumbnail of Selecting the optimal energy mix and sizing of a isolated microgrid

INGE@UAN - TENDENCIAS EN LA INGENIERÍA; Vol. 4 Núm. 7 (2013), Jun 16, 2021

Research paper thumbnail of Evaluation of Eleven Numerical Methods for Determining Weibull Parameters for Wind Energy Generation in the Caribbean Region of Colombia

Mathematical Modelling of Engineering Problems, 2022

The two-parameter Weibull probability density function (PDF) is widely utilized by different rese... more The two-parameter Weibull probability density function (PDF) is widely utilized by different researchers and engineers to fit wind speed data for statistical analysis and modeling. The characterization of wind resources in the frequency and probability domain is necessary to estimate the power output potential of new wind energy projects. Considering that exist a variety of Weibull equations evidenced in the literature review, this article evaluates 11 different methods to calculate the shape and scale parameters of the Weibull PDF. In this sense, it was written an algorithm within a Matlab function that solves the 11 methods for calculating the Weibull PDF parameters. Wind speed data extracted from the ERA5 database was used as input data for applying the proposed algorithm, and statistical parameters such as the Root Mean Square Error (RMSE), the Relative Root Mean Square Error (RRMSE), and chi-square test (X2) we utilized for assessing the performance of each one of the 11 method...

Research paper thumbnail of Technical and Financial Assessment of Photovoltaic Solar Systems for Residential Complexes Considering Three Different Commercial Technologies and Colombia’s Energy Policy

International Journal of Energy Economics and Policy, 2021

The use of solar energy is increasingly prevalent in residential areas around the world due to th... more The use of solar energy is increasingly prevalent in residential areas around the world due to the decrease in the levelized cost of energy (LCOE) for projects that meet the energy need in homes, in Colombia regulations have begun to facilitate the integration of grid-connected renewable energy projects and in isolated areas. The purpose of this research is to technically and financially assess the feasibility of a solar photovoltaic system connected to the grid in a residential complex in Colombia according to the regulatory framework in force at 2020, comparing three photovoltaic module technologies, as well as three generation scenarios (self-consumption, exchange with the network and sale of surpluses), financial feasibility was assessed taking into account three financial goodness criteria (NPV, IRR and Payback Time). The results of the research indicate that the most feasible generation scenario technically and economically is self-consumption using Si-Poly technology, for the self-consumption scenario the solar photovoltaic system requires an installed capacity of 3.77 kW peak, with an investment cost of 5,748USD,accordingtothecriteriaofkindnessthePaybackTimeis7years,withanIRRof19.675,748 USD, according to the criteria of kindness the Payback Time is 7 years, with an IRR of 19.67% for the project and 5,748USD,accordingtothecriteriaofkindnessthePaybackTimeis7years,withanIRRof19.6749,920 USD of NPV.

Research paper thumbnail of Super-Alarms with Diagnosis Proficiency Used as an Additional Layer of Protection Applied to an Oil Transport System

Entropy, 2021

In automated plants, particularly in the petrochemical, energy, and chemical industries, the comb... more In automated plants, particularly in the petrochemical, energy, and chemical industries, the combined management of all of the incidents that can produce a catastrophic accident is required. In order to do this, an alarm management methodology can be formulated as a discrete event sequence recognition problem, in which time patterns are used to identify the safe condition of the process, especially in the start-up and shutdown stages. In this paper, a new layer of protection (a Super-Alarm), based on the diagnostic stage to industrial processes is presented. The alarms and actions of the standard operating procedures are considered to be discrete events involved in sequences; the diagnostic stage corresponds to the recognition of the situation when these sequences occur. This provides operators with pertinent information about the normal or abnormal situations induced by the flow of the alarms. Chronicles Based Alarm Management (CBAM) is the methodology used in this document to buil...

Research paper thumbnail of Economic and Energy Analysis of Small Capacity Grid-connected Hybrid Photovoltaic-wind Systems in Mexico

International Journal of Energy Economics and Policy, 2019

The integration of renewable energies in the electric power system, as a solution to the growing ... more The integration of renewable energies in the electric power system, as a solution to the growing demand for electricity in developing countries, has become a vital issue, such is the case of Mexico. The purpose of this work is the assessment of the economic and energy feasibility of a residential house grid-connected hybrid PV-Wind system, in Mexico. The hybrid PV-Wind system design is based on the existing renewable energy resources and considering a typical load profile. Also, an economic analysis is presented based on the two schemes approved for the sale of the surplus of the energy generated in Mexico: net billing and net metering. The results obtained demonstrate the viability and profitability of the proposed small-size system. However, the results corroborate that government incentives are crucial to making the proposed system more attractive and affordable for residential users.

Research paper thumbnail of Future Scenarios and Trends of Energy Demand in Colombia using Long-range Energy Alternative Planning

The prospective of Colombia’s energy demand will be defined by economic, social, cultural and pol... more The prospective of Colombia’s energy demand will be defined by economic, social, cultural and political phenomena. Modeling the factors that determine demand can be broadly divided into quantitative and qualitative. The quantitative phenomena, demography, energy efficiency and the direct consumption of fuels; qualitative effects are specific conditions, which are defined within each scenario as variables that will have effects on quantitative phenomena. In the baseline scenario, the transportation sector is expected to remain as the largest representative of Colombia’s energy demand, although its participation in the year 2050 will be reduced by approximately 7%. The residential sector will have a reduced growth supported by the law 1715 that will increase distributed generation and implement more efficient lighting systems. A scenario focused on energy diversification shows a reduction in demand since the short term. Transport sector is maintained with similar behaviors in all scen...

Research paper thumbnail of Cálculo de las radiaciones total, directa y difusa a través de la transmisibilidad atmosférica en los departamentos del Cesar, La Guajira y Magdalena (Colombia)

Research paper thumbnail of Dual-Axis Solar Tracker for Using in Photovoltaic Systems

International Journal of Renewable Energy Research, 2017

This paper presents a dual-axis solar tracker based on a real-time measurement of solar radiation... more This paper presents a dual-axis solar tracker based on a real-time measurement of solar radiation. For this, Matlab-Simulink was used to perform the dynamic model of: solar radiation, electromechanical system and solar panel. The implementation of the solar tracker was performed using a digital controller that processes signals from radiation sensors and inertial measurement unit. The acquired data are contrasted with a mathematical algorithm to calculate sun’s position and set the control action to orient the panel. A real-time processing system with internal memory capacity was developed, which considers the relative position between the radiation sensor and solar panel to improve system efficiency. The obtained simulation results confirm the approach robustness. Preliminary results with the solar tracker show a maximum increase of 9.87% in the energy obtained from dual-axis solar panel compared with energy from a fixed panel optimally oriented. The tests were performed using two ...