Juan Jose Cabello Eras

• Dr
• Professor (Full) at University of Córdoba

Municipal Energy Review enables the analysis of a municipality's energy performance, encompassing quantifiable energy efficiency, energy utilization, and consumption outcomes. This study embarks on an energy review of Sabanalarga municipality in Colombia, scrutinizing its energy performance spanning from 2010 to 2021 as a preliminary step toward de...

Improving the energy performance of buildings is critical in the construction sector. This study investigates the effects of incorporating coconut mesocarp fibers (F = Fiber) and bovine manure (M = Manure) on the thermal conductivity and compressive strength of concrete blocks. Bovine manure and coconut fiber replaced the block sand at maximum conc...

This paper studies the viability of energy savings in electric motors by adjusting the voltage according to load in motors that operate under significant load variations during their work cycles. The laboratory test program used a 1.1 kW electric motor to compare its measured efficiency operating without voltage control with the load-based voltage...

The study uses four AC technologies to assess the energy performance—this is a case study of an educational building in Barranquilla, Colombia. The building currently has split AC technology high-energy consumers. Therefore, it was necessary to assess a replacement with more efficient technology. Because of the non-seasonal climate in the building...

Turbochargers have proven to be essential in the automotive field as they are machines responsible for increasing power, reducing fuel consumption, and generating less carbon dioxide in an internal combustion engine. This article presents the development of a mathematical model based on a plenum to obtain the dynamic characteristics of the mass flo...

In the research, a CFD model of the cooling airflow produced by the fan in an induction motor is developed. The model is validated through air velocity measurements with an anemometer on the modeled motor, yielding good results. The CFD model is applied to 10 IMs of different sizes, obtaining the cooling air velocity profile in the area of the cool...

Landfills account for significant methane emissions worldwide. However, municipal solid wastes can be energetically revalorized using landfill gas-to-energy (LFGtE) systems. This study assesses from a technical, economic, and environmental point of view the potential to implement LFGtE in major Colombian cities, including Bogota, Medellin, Cali, Ba...

The production of lead-acid batteries is an energy-intensive process where 28 to 35% of the energy is used in the form of heat, usually obtained from the combustion of fossil fuels. Regardless of the importance of heat consumption during battery manufacturing, there is no discussion available in the specialized literature that assesses heat during...

The transient acceleration of ocean currents, or internal waves, is hard to detect, because it does not have climate variability or regular manifestation in the sea. This fluctuation affects not only short-term oceanographic processes but also the hydrokinetic generation of power and the structural health of ocean technologies. Identifying and unde...

Renewable energy and energy efficiency are essential for a transition to cleaner and sustainable energy. Photovoltaic and wind turbine systems introduce operation, control, protection, and planning issues, particularly affecting frequency stability in the grid. In contrast to more widespread wind turbines and photovoltaic systems, biomass based ele...

This paper analyzes the problems in electrical power systems with high penetration of photovoltaic systems, which must be considered in evaluating new projects with these generation sources. The study analyzes the characteristics of photovoltaic systems, their generated effects, and proposals for technological improvements. The features of electric...

In this paper, the integral performance indicator for selecting HVAC systems (ACPI) is applied to select the Air Conditioning (AC) system with better results in their life cycle for a typical building in Barranquilla, Colombia. The AC systems under study were: direct expansion system (Split and VRF), air-cooled system (VAC and VAV), and water-coole...

This study discusses the introduction of elastic embedment support in the preliminary design of shafts. The preliminary design of shafts idealizes the supports by considering them mobile articulated support, fixed articulated support, or embedded support. In several cases, these idealizations deviate from reality. While articulated supports produce...

The river deltas are hydrodynamic systems where high energy flux occurs due to the interaction of the river discharge, winds, water levels and wave field. This interaction triggers complex surface non-linear interactions that affect the wave parameters at the river delta, hence, non-linear analysis methods might ease the understanding of intricate...

In order to demonstrate the relevance of considering Vortex-Induced Vibrations (VIV) in the structural design of marine structures, this study proposes an alternative experimental and analytical approach in wet conditions to measure the fluid–structure interaction in the near field and quantify the viscous damping with measured structural and 3D hydr...

The article focuses on establishing the energy diagnosis of the municipality of Sabanalarga (Atlántico) - Colombia, in order to determine its consumption, significant uses of energy, energy flows, indicators by sector and by persons, to establish the initial energy review proposed by the ISO 50 001: 2018 standard and thus design and implement a mun...

The need of reducing the dependence of fossil fuels and CO2 emissions have motivated the diversification of energy matrix. Among the Renewables, the hydropower shows better characteristics compared to solar, wind, biomass and geothermal, because its low CO2 emissions, higher density and others technical factors. Within the Hydropower, the Hydrokine...

This study discusses the causal analysis and solution of the teeth failure in sprocket drivers in a clinker scraper conveyor of a cement plant. The failure consisted of the progressive surfacing shape loss of the teeth, progressively deteriorated to the operating conditions of the system, causing dynamic loads, which affected the mechanical transmi...

Increasing access to electricity is essential to improve human development in poor and developing countries. To this end, the relationship between electricity consumption and human development is critical to supporting the process of decision-making. However, the discussion on this topic is limited. In Colombia, developing adequate policies require...

Offshore wind energy (OWE) shows rapid growth in reducing CO2 emissions. Although OWE is considered renewable several used materials in their activities, such as manufacturing, installation, maintenance, and dismantling of the wind farms, generate negative impacts on human health, the natural environment, and natural resources. To provide a better...

The present narrative review aimed to analyze the impact of the COVID-19 pandemic on the sustainable development goals (SDGS). This information would allow a better comprehension of the actual state of the SDGS and a more efficient programming in future interventions. To achieve the objective of the study, a consensual and critical review was carri...

Efficient energy management has a significant impact on the achievement of the sustainable development goals; therefore it has become a challenge for nations and all sectors of the economy, who over the last decades have advanced in the creation of methodologies to evaluate and improve it, however, it is remarkable that, in countries with emerging...

Efficient energy management has a significant impact on the achievement of the sustainable development goals; therefore it has become a challenge for nations and all sectors of the economy, who over the last decades have advanced in the creation of methodologies to evaluate and improve it, however, it is remarkable that, in countries with emerging...

The inequality in electricity consumption (EC) in Colombia is assessed based on the per capita electricity consumption (ECpc) and the Gini coefficient. The ECpc was defined with the total electricity consumption and population for each department and rural and urban areas. Furthermore, the national ECpc was assessed according to the Colombian socio...

Currently, the feasibility to replace standard efficiency electric motors with higher efficiency ones is assessed with considerations differing from real operating conditions in the industry. This study compares the feasibility of replacing 26 standard efficiency motors (IE1) with high-efficiency efficiency ones (IE2 and IE3) in a sugar plant, base...

Modern energy services are essential to replace the extensive use of traditional biomass fuels driving several environmental, health, and social issues affecting the welfare of low-income citizens. Particularly, in Colombia, 11% of the households rely on inefficient firewood cooking systems, while two million people have either intermittent access...

Municipal solid remains an issue that needs to be addressed globally towards a more circular economy and lower environmental impacts. In Colombia, over 96% of municipal solid wastes are landfilled, with little recycling or revalorisation of wastes and several environmental implications. With the technological development of different waste-to-energ...

Improving the thermal efficiency of internal combustion engines is essential to reduce the operating costs and complaints with the increasing environmental requirements. Thermoelectric generators came up as an opportunity to reuse part of the heat loss with the exhausts. This paper evaluates the performance of a thermoelectric generator to improve...

Urban freight transport is currently of vital importance for the cities economic growth, but at the same time, it is one of the most representative sources of pollutant emissions. Although numerous models and approaches have been proposed that aim to improve the eco-efficiency of urban distribution, few have classified the available information by...

This paper presents an energy performance assessment on an educational building in Barranquilla, Colombia. The electricity consumption performance was assessed using the software DesignBuilder for two different Air Conditioning (AC) systems. The current electricity intensity is 215.3 kWh/m²-year and centralized AC systems with individual fan coils...

Urban freight transport is currently of vital importance for the cities economic growth, but at the same time, it is one of the most representative sources of pollutant emissions. Although numerous models and approaches have been proposed that aim to improve the eco-efficiency of urban distribution, few have classified the available information by...

The limited availability of local climatological stations and the limitations to predict the wind speed (WS) accurately are significant barriers to the expansion of wind energy (WE) projects worldwide. A methodology to forecast accurately the WS at the local scale can be used to overcome these barriers. This study proposes a methodology to forecast...

The measurement of efficiency in public universities has been a topic of interest for researchers and state officials in Colombia; this article presents a model that transcends the view of productive efficiency, and expands it by including aspects of equity with distributive efficiency, of acceptance by society in the allocative efficiency, and fin...

The selection of the most suitable HVAC technology for buildings, is a complex challenge. Many factors such as, the features of the building, climatic conditions, energy consumption, Indoor Air Quality (IAQ), thermal comfort, regulations, aspects, economic and environmental aspects, all of which are shown on a local and national scope. There is no...

There is a large potential for biomass-based renewable energy production Colombia which mostly remains untapped, accounting for a marginal 0.8% of the electricity production. Moreover, Córdoba is a department with important developments in agriculture and agroindustry, where significant amounts of biomass wastes are generated. In total, these waste...

The wear degree of knives in hammermills strongly influences electricity consumption, productivity, and total operating costs. Currently, the timely replacement of the knives set is decided based on visual inspections, a feedstock load or a lifespan defined, the electric demand of the mill as compared to the limit of the motor driving it, or the vi...

The energy balance of the municipality of Cienfuegos allows the local government to know the accounting of all energy flows and the relationships between energy inputs and outputs and their transformations, element of relevance for the integration of local energy management with government management. The energy balance is carried out through a met...

El balance energético del municipio de Cienfuegos permite al gobierno local conocer la contabilidad de todos los flujos energéticos y las relaciones entre las entradas y las salidas de energía y sus transformaciones; para la incorporación de la gestión energética local a la gestión de gobierno. El balance energético se realiza a través una metodolo...

The design of marine structures requires the simulation of wave parameters that consider sea-state and water-depth transitions. Proper selection of the model coefficients (e.g., alpha and gamma of the JONSWAP spectra) is then required, because of the wave-hydrodynamic nonlinearities during these ocean processes. Therefore, the model coefficient sel...

El control del consumo y eficiencia energética de los equipos de aire acondicionado es de vital importancia, sobre todo en lugares como la ciudad de Barranquilla con altas temperaturas y humedades relativas, lo cual genera en ésta un alto consumo de energía eléctrica. Se presenta en el siguiente trabajo un sistema de mediciones digitales que permit...

The use of compressed air in industry is an important and yet overlooked energy carrier. Although there are different energy-saving measures discussed in the specialized literature, there is little discussion on the energy performance of the production and use of compressed air. This study developed a new approach to assess the energy performance o...

RESUMEN Este artículo presenta un modelo de ecuaciones estructurales que miden la calidad de vida urbana (CVU), tomando como referencia la ciudad de Cienfuegos (Cuba). El objetivo es determinar las variables que influyen en la calidad de vida urbana, para ello se desarrolla un procedimiento que permite el diseño de dos modelos: uno desde la dimensi...

This paper presents the design of a control system for the automatic connection/disconnection and distribution of load, between an asynchronous alternator and a generator, in a hydroelectric central that works in isolated mode. The design of a control algorithm based on fuzzy logic is exposed, as this is a flexible method to be used in different in...

Cleaner production is a lively concept in which new procedures and technologies constantly emerge introducing methods and practices to prevent damages to the environment. A broad range of cleaner production initiatives contribute to sustainable development not only through the efficient management of resources and energy, but also through the devel...

Cuba currently faces a limited availability of transportation to support the development needs of the country. Transport availability is mostly limited because of fuel shortage. Moreover, Cuba has an important production of sugarcane, with a significant potential to further increase its production. Using sugarcane-based bioethanol is a significant...

In Colombia, agriculture and livestock production, and the processing agroindustry (including slaughterhouses) are a significant source of biomass wastes, which often generate significant environmental impacts. Waste-to-energy technologies, particularly direct combustion and anaerobic digestion systems are an alternative to revalorize these wastes...

The data presented in this article was used to assess and compare the most important methods used to estimate the efficiency during the operation of induction motors at different loads and power supply conditions. The experiment was developed in a test bench including a three-phase induction motor of 1.1 kW (De Lorenzo DL 1021). In addition, an adj...

The data included in this study was calculated based on data provided by the national project registry provided by the Colombian government. The data forecasts the evolution of the power generation capacity registered in non-conventional renewable energy source projects in three scenarios of implementation of the power generation capacity registere...

Power generation with thermoelectric devices in internal combustion engines is an alternative to recover some of the energy loss with the exhausts. This data article supports a study that assesses the potentialities of energy recovery with thermoelectric generators in diesel engines and its influence on gaseous emissions. To this end, a set of expe...

Abstract: The aim of this study is to improve energy performance at a battery factory in Colombia by introducing the energy management approach defined in ISO 50001. In the study, the main energy consumptions were identified in the battery formation, the compressed air system and the large electric motors. An energy review was performed in the fact...

The new Cuban economic and social model presupposes a greater decentralization of economic and governmental functions and, therefore, greater attributions to local goverments. The quality of urban life is addressed as an objective of local governance in terms of achieving sustainable urban development. For its evaluation, a methodological procedure...

The high potential of wind speed in the Colombian Caribbean coast is an opportunity to develop offshore wind energy technology. This article contains the wind speed and wind power density in four strategic locations in Colombia (Cartagena, Barranquilla, Santa Marta and La Guajira) at different elevations. The dataset from this study is related to t...

Thermoelectric generation is an alternative to recover some of the wasted energy trough an exhaust of the internal combustion engines. This paper assesses the performance of a thermoelectric generator with 20 modules by implementing a waffle heat exchanger. Experimental results showed a variable range of power recovery from 57.87 W to 71.13 W for B...

En el Trabajo se profundiza en la literatura acerca de los aspectos que caracterizan la generación de residuales en las Granjas Porcinas en general y en particular las existentes en Cuba. Se revisaron algunos aspectos vinculados con el equipamiento empleado en la separación primaria de los sólidos de las aguas residuales de las Empresas Porcinas, p...

Resumen: El objetivo de este estudio es mejorar el rendimiento energético en una fábrica de baterías en Colombia mediante la introducción del enfoque de gestión energética definido en ISO 50001. En el estudio, los principales consumos de energía se identificaron en la formación de la batería, el sistema de aire comprimido y la gran red eléctrica mo...

This study identifies the main factors affecting the electricity efficiency and productivity of the lead acid battery formation process. A representative sample of 12,286 battery formation processes, developed between June 2014 and June 2015, were used in a statistic analysis. As a result, an energy performance indicator was developed to assess the...

This paper discusses energy management in the formation process of lead-acid batteries. Battery production and electricity consumption in during battery formation in a battery plant were analyzed over a 4-year period. The main parameters affecting the energy performance of battery production were identified and different actions to improve it were...

Improving and managing the electricity efficiency in hotel facilities is essential to reduce the hotel operation costs and its environmental impacts. The data presented shows the evolution of the electricity consumption and management between 2013 and 2015 in two hotel facilities in Cuba (one beach hotel and one city hotel). The data additionally i...

Resumen En el trabajo se realizara una Evaluación de Producción Más Limpia en la Empresa Productora de Piensos Cienfuegos. Se realizó un estudio detallado de las entradas y salidas del proceso, para identificar las opciones de mejoras e implementar un Plan de Producción Más Limpia. Se propone un plan de medidas, al cual previamente se le ha fundame...

INTRODUCCIÓN A nivel internacional, la sociedad en desarrollo requiere una nueva universidad que ya está emergiendo. Una universidad distinta de la del pasado, incluso diferente de la que vivieron como estudiantes muchos de los actuales profesores y gestores universitarios, una universidad más comprometida con su entorno y con la sociedad donde se...

Resumen En el trabajo analiza el modelo cubano de desarrollo sostenible y se explican las causas de que sea el único país del mundo que según el World Wide Fund for Nature cumpla con los requisitos para ser sostenible. Se exponen los resultados alcanzados en la educación y la salud que explican los altos resultados del Indice de Desarrollo Humano (...

El impacto ambiental de la industria de la construcción es reconocido, en primer lugar por el elevado consumo de de recursos naturales que para su desarrollo demanda y en segundo lugar por la cantidad de residuos que genera. (Tchobanoglous 1994, Blumenschein 2004) Aunque es menos divulgado también la actividad constructiva es un importante emisor d...

Different methods have been developed to estimate the energy efficiency of induction motors. The accuracy of these methods vary with the load factor, the unbalanced voltage (UV) and harmonics. The feasibility of these methods for efficiency estimation in real-time were theoretically and experimentally assessed during the operation under different o...

The Government of Cuba proposed in the year 2011 an update of the economic and social model, where the management of energy is an element of influence in the economy of the country. This led to the approval of a policy for the development of renewable sources and the efficient use of energy. Another important aspect is the National Plan for develop...

This study discusses the potentialities and current situation of the electricity generation from non-conventional renewable energy sources (NCRES) in Colombia. In particular, three scenarios considering the increment of NCRES electricity based generation installed capacity are discussed. The three scenarios are compared to the 2020 forecast of the...

El control del consumo y eficiencia energética de los equipos de aire acondicionado es de vital importancia, sobre todo en lugares como la ciudad de Barranquilla con altas temperaturas y humedades relativas, lo cual genera en ésta un alto consumo de energía eléctrica. Se presenta en el siguiente trabajo un sistema de mediciones digitales que permit...

Autor a quien debe ser enviada la correspondencia Resumen En este estudio que se presenta se integran técnicas utilizadas para analizar problemas asociados a la climatización que por sí no son suficientes para evaluar todo un sistema de acondicionamiento de aire. Se utiliza la termografía para obtener el perfil de temperatura en el área de incidenc...

This study integrates different techniques to analyze some issues of the air conditioning system of a commercial establishment. A thermographic camera is used to assess the temperature profile in the area covered by the air conditioning system and also to detect the higher temperature spots. The air conditioning system of the facility is simulated...

Electricity stands as the main energy used for lead-acid battery (LAB) manufacturing. This study introduces an energy management methodology to address the electricity consumption in lead-acid battery plants, improving efficiency standards. The “equivalent battery production” is introduced to define the energy performance criteria to be met in the...

The objective of this paper was the characterization of human capital context, since view point international as national. This implication considers the principal tendencies about management, and the problems to confront, so as the principals challenges for Cuba. The methods used were the documental analysis and the direct observation. As results...

The diagnosis of failures in Internal Combustion Engines (ICM)-generation engines, has been considering one of the principal thematic axes of academic and industrial Research, Development and Innovation (R & D & I) based on the analysis of the specialized engineering literature within the Distributed Generation (DG) paradigm. With the aim of presen...

In this paper was applied a method of energy planning, compatible with ISO 50001 standard, in an industrial laundry. In the analysis, three input variables were considered: level of production, technical condition of the system and operating regime. The past, present and future of fuel oil consumption in the steam generation and use was examined, e...

En el trabajo se profundiza en dos métodos de cálculo de sistemas hiperestáticos aplicables para la evaluación de la resistencia de volantes de llantas y rayos los que se aplican al volante de un molino de martillos. Los resultados de los métodos analíticos se validaron mediante un Análisis de Elementos Finitos resultando diferencias inferiores al...

Resumen En el artículo se realiza un análisis cuantitativo de los principales procesos consumidores de agua en la empresa Cementos Cienfuegos SA, a partir del cual se proponen acciones para su ahorro a través de la introducción del reúso; la recolección y el aprovechamiento de las aguas pluviales. Se hizo una evaluación preliminar de las tareas pro...

El presente trabajo está enfocado a la aplicación de acciones de PML en el movimiento de tierra de la expansión de la refinería de petróleo Camilo Cienfuegos