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Administración de recursos informáticos y control de proyectos mediante plataforma web en la compañía de construcción y consultoría civil SYSTEMS CIA. LTDA.
(2016) Idrovo Astudillo, Cristian Mauricio; Banegas Peña, Tito Max
Given the rapid growth of competition in the field leads to the creation of a methodology for project management taking into account the best practices available worldwide. The use of ICT will represent the way to face the competition that currently companies face, process management, resource management, generating responsibilities and commitments in the processes that are carried out projects mark a change in compliance goals and objectives. Taking into account the above and after an evaluation of the processes by which projects are currently handled, a methodology will be defined to manage projects, once the processes that will intervene defined, the issue of seeking the ideal tool will be addressed for project management via web, keeping control of them, generating a profit in relation to the use of the resources available to the company. Generate management indicators within the selected tool will be an advantage should be taken into consideration when choosing the Web platform to carry out timely control in advancing processes. The use of ICT conjugated with an appropriate methodology, encourage the development of companies to plan achieving management of resources: human, financial and material, with their respective savings in time and money.
Algoritmo neuro-difuso para la detección y clasificación de fallas en líneas de transmisión eléctrica del sistema ecuatoriano usando simulaciones y datos de registradores de fallas
(2012) Alvarado Guichay, Efrén Vinicio; Torres Contreras, Santiago Patricio
Almacenamiento de energía mediante baterías para aliviar la curva de demanda del alimentador 0524
(Universidad de Cuenca, 2021-01-19) Rodríguez Méndez, Juan Carlos; Mogrovejo León, Wilson Fernando
This work studies the feasibility of implementing energy storage in feeder 0524 in the city of Cuenca to alleviate the demand curve. For this, both technical and economic aspects of existing technologies on the market are considered. Feeder 0524 belongs to substation 05 (El Arenal) of Empresa Eléctrica Regional Centro Sur, it is located in the urban area of the city of Cuenca (Tarquino Cordero street, El Arenal, El Salado, Indurama, Coral Centro, El Tiempo, Parque Iberia, Av. Remigio Crespo, Miguel Merchán school). Based on consumption data recorded for 12 months for this feeder, the feasibility of battery based storage systems to flatten the demand curve is analyzed. The selected system consists of a bank of 56 Lithium Ion batteries, with a total storage capacity of 500 kW taking into account that it is the power provided by the El Descanso Thermoelectric Plant to the 0524 feeder when the generation dispatch requires it, that is, when the energy demand is greater than what hydroelectric generation can provide. These types of batteries allow their use in city conditions and the operating parameters of the feeder. With the results obtained, an analysis of the technical benefits of its implementation is carried out. It is shown that the operation of the proposed storage system allows the feeder to function better, especially in peak demand times, when the storage system delivers load to the grid, while the load of the system can be carried out in a better way, in off-peak or off-peak hours. The economic-financial analysis of the proposal shows that the initial investment is $647468.51, this investment is justified because the TIR is positive with a value of 11.64% and the VAN shows that the expected return is greater than a minimum acceptable return. From an economic point of view, the incorporation of a battery bank is beneficial for the Electric Company, due to the fact that the demand curve can be flattened, obtaining a better projection of the energy necessary to meet the consumption requirement, which is beneficial if one takes into account that the energy that comes in this case from a water source would be stored during the off-peak hours with a lower cost to use it in the hours of highest consumption, reducing dependence on the energy produced by a thermoelectric plant with a more expensive value. It should also be considered that if the project is part of a private investment, it would not present profitability due to the current costs of the elements that make up the system
Altitudinal and Temporal Evapotranspiration Dynamics via Vegetation Index-based Modelling over an Andean Páramo Ecosystem of Southern Ecuador
(2018-07-27) Ramón Reinozo, Mayra Elizabeth; Carrillo Rojas, Galo José
The páramo ecosystem is considered the main water supplier for the Andean region. Additionally, in this type of ecosystem, ET is the major source of water loss for the hydrological cycle. However, given the lack of in situ ET measurements in such remote ecosystems, ET dynamics on the hydrological regulation still remain largely unexplored. Therefore, this study, by making use of remote sensing images, assessed the altitudinal and temporal dynamics of actual evapotranspiration using remote sensing images and a vegetation index based on a crop coefficient model in a high altitudinal páramo catchment. It contributes evaluating three vegetation indexes (VI) - Enhanced vegetation index (EVI), Normalized Difference Vegetation Index (NDVI) and Soil-Adjusted Vegetation Index (SAVI) – that were retrieved from clear-sky Landsat satellite imagery. Remote sensing imagery and ground-level meteorological data for a 10 months period (2013 – 2014) were used to create ET maps from each VI. Daily ET time series were obtained with cubic spline interpolation, and then aggregated to monthly time steps in order to validate through the water balance of the study area. Results reveal that EVI- based ET (ETEVI) outperformed the other VI-based ET. ET estimates exhibited a strong dependence on precipitation and land cover distribution. ET variability showed a good fitting with the water balance for the humid months while it was weak in the less-humid months. The percentage error in the less-humid period was two times greater (50%) respect to the humid months (25%). Regarding the altitudinal variability and land cover, ET was higher in the lowlands where evergreen vegetation prevails (65%), while in the highlands ET decreased significantly where tussock grasslands dominate (77%). The study also demonstrated that a fine calibration is needed to obtain reliable ET estimates for the less-humid months. Additionally, it contributes to the evaluation of three VI- based ET, which in turn, contributes to the body of knowledge of ecohydrology of the highland tropical Andes, which is potentially exposed to the negative effects of land use change, agro-industrial activities and global warming.
Análisis y propuesta de solución integral al congestionamiento vehicular que se produce en la Av. 24 de Mayo y Vía al Valle, de la ciudad de Cuenca
(2017) Mejía Regalado, Iván Alejandro; Guzmán Crespo, Jaime
The present study proposes a solution in regards to the congestive vehicular traffic located at the intersection of Av. 24 de Mayo and Valle Road. The current study proposes this solution by observing the long lines of traffic that are inconvenienced by the constant inefficient flow of traffic, this study insinuates a study of the traffic flow in a determined area, noting the traffic flow at the intersection, the composition of the vehicles in this area, most important of all, the cars course of destination through a matrix of turns. After determining all the problems generated at the intersection we seek solution alternatives through traffic simulations, taking into consideration prior projects as far back as up to 5, 10, 15 and 20 years; reaching a solution framed in a service level analysis of both approach lanes and the use of the intersection, reaching a level of service B to a projection of 20 years.
Análisis comparativo sobre destacados modelos y marcos de madurez en la transformación digital, con sus respectivos campos de acción
(Universidad de Cuenca, 2021-05-21) Reyes Coellar, Juan Francisco; Morocho Zurita, Carlos Villie
Análisis comparativo tecno – económico de sistemas de generación solares fotovoltaicos con y sin seguimiento solar, para autoabastecimiento de la demanda de clientes residenciales tipo C de la Empresa Eléctrica Regional Centro Sur (EERCS)
(Universidad de Cuenca, 2023-07-27) Pinos Narváez, Wilson Stalin; Iñiguez Moran, Vinicio Estuardo
El presente estudio consiste en el análisis comparativo tecno-económico de 3 sistemas de generación solar fotovoltaica (SFV) con y sin seguimiento solar. Los SFV evaluados incluyen un sistema fijo con paneles de silicio monocristalino (SFV1), un sistema fijo con paneles de silicio policristalino (SFV2) y un sistema móvil con seguidor solar de un eje y dos ejes conformado por paneles policristalinos (SFV3). Se evaluaron los sistemas para el autoabastecimiento de la demanda de clientes residenciales tipo C de la EERCS. Se desarrollo una metodología que consistió en utilizar una base de 525.600 datos de potencia de cada SFV registrados en el sistema SCADA del Laboratorio de Micro-Red del Centro Científico, Tecnológico y de Investigación Balzay de la Universidad de Cuenca, en el año 2022. Los datos se filtraron y procesaron para obtener las curvas de potencia de cada SFV en kW y p.u., la energía total producida mediante la integración numérica de las curvas de potencia y el factor de planta de cada sistema. Posteriormente, se dimensionaron los nuevos SFV y finalmente se calcularon los costos de inversión inicial, ahorro anual, periodo de recuperación, valor actual neto y tasa interna de retorno para cada SFVA_TipoC_(1, 2 y 3), para determinar el SFV más rentable. El análisis se realizó para SFVA_TipoC_(1, 2 y 3) integrados por 8, 6 y 4 paneles, respectivamente. De los resultados obtenidos, todos cumplen con los parámetros para su implementación, sin embargo, existe una ligera superioridad en términos económicos y técnicos de los SFV conformado por 6 paneles. En términos técnicos, el SFVA_TipoC_3 de 6 paneles, es más eficiente que los SFVA_TipoC_3 debido a que tiene un rendimiento superior (15,73%) con respecto a los sistemas fijos. En términos económicos, el sistema más rentable es SFVA_TipoC_1, con una TIR del 8,35%, un VAN de $1.849,73 y un periodo de recuperación de la inversión de 10 años. Razón por la cual, SFVA_TipoC_1 compuesto por 6 paneles, es la opción más recomendable para el usuario debido a su alto rendimiento energético, menor costo de inversión inicial, capacidad para abastecer la carga y menor período de recuperación de la inversión.
Análisis de cadenas de ventas al Retail para definir procesos ETLque faciliten la elaboración de un Datawarehouse que permita un análisis financiero
(2015) Coronel Aguilar, Fabián Teodoro; Arias Cisneros, Germán Alexander
This document, in its first chapter presents the subject of the study, hypothesis, and the objectives that want to be achieved along with relevant methodology. The second chapter includes the literature review that focuses on what Retail sales are, and their important characteristics; after, the financial aspect, its concept and its importance in the area of Retail businesses will be analyzed to obtain indicators which will allow to measure its performance. In the third chapter, the concept of Balanced Scorecard will be analyzed to define observable parameters (indicators) that will be obtained by applying a survey to the financial area of various Retail businesses in the city of Cuenca with the purpose of obtaining objectives that will give us as result only the indicators that are considered important for making decisions in the local level. In the fourth chapter, main concepts and characteristics of Datawarehouse are described; subsequently, the different methodologies that exist for its development are examined, selecting the most suitable for the analyzed context. This will be done by means of a comparative chart between the methodologies and characteristics of Retail businesses. Finally, in the last chapter, taking as reference the selected methodology, the steps and characteristics that Datawarehouse should have will be defined in order to structure it in such a way that allows a financial analysis based on the previously established indicators, and this will be achieved through a case study applied to the enterprise PapeleríaMonsalve Cia. Ltdafromthecity of Cuenca.
Análisis de escenarios de adaptación del transporte público para cubrir la nueva demanda del Eco Campus Balzay de la Universidad de Cuenca
(Universidad de Cuenca, 2022-07-26) Loayza Valdivieso, Jorge Enrique; Ávila Ordóñez, Elina María
The Balzay Eco Campus of the University of Cuenca becomes a new point of interest in the city. Students, faculty and administrative staff need to travel to the Balzay area. Previous studies show that, public transport by bus is one of the most used alternatives to cover the trips of the students of University of Cuenca. Unfortunately, the current routes of public transport lines are not prepared to provide an efficient service in the new Eco Campus Balzay. This study aims to design small modifications in the public transport routes to satisfy the emerging demand to and from the Eco Campus, changing the current service as little as possible. Different scenarios are defined and analyzed using Genetic Algorithms (GA) applied to the design of bus lines. The results show how small changes in the affected area improve users' travel times.
Análisis de estabilidad de frecuencia del sistema eléctrico ecuatoriano incorporando generación eólica con escenarios de demada, generación y contingencias
(Universidad de Cuenca, 2024-01-20) Pachari Pacheco, José Geovanny; Ochoa Correa, Danny Vinicio
Electrical power systems worldwide tend to have environmental responsibility and energy sovereignty, with the incorporation of non-conventional renewable energy and introducing technical-operational problems. The Ecuadorian National Interconnected System (SNI) was analyzed considering the base case and 4 scenarios; The base case establishes the current system with thermal, hydraulic and wind generation with 66.6MW and a system demand of 4261.20MW, the demand was covered with a contribution of 91% hydraulic generation, 8% thermal and 1% wind; In scenario 3 with a wind generation penetration of 647.19MW, the output of unit U6 of the Paute Molino plant and a demand of 4261.20MW, the demand was covered with 79% hydraulic, 7% thermal and 13% wind, failing to comply the frequency limits allowed by regulatory entities at 0.25%; For scenario 4, it considers a wind generation penetration of 885.10MW, output from unit U6 of the Paute Molino plant and a demand of 4261.20MW covered with 71% hydraulic, 8% thermal and 20% wind, failing to comply with the frequency limits allowed by regulatory entities by 3.5%. Simulations are carried out in Simulink Matlab with: Base case criteria and the 4 scenarios considered, generation agents most representative of the Ecuadorian SNI and a contribution system to the Primary Frequency Control (CPF) for wind generation with virtual inertial; Important improvements are obtained in the contribution to the CPF by the wind generation agent.
Análisis de impacto de la implementación de indicadores en el desempeño y calidad del desarrollo ágil de software en la industria de Retail
(Universidad de Cuenca, 2021-12-10) Arias Zhañay, María Belén; Alvear Alvear, Oscar Patricio
The activities that are generated in the retailers use technology to automate and enhance the sales and distribution processes. This is why the need for custom software development is presented by the IT area to meet the requirements of the different areas. Under this context, the managements are forced to invest in IT development. The analysis of the software development process of the IT area of a retail identified high delivery times and low quality of the requirements, generating a bad perception on the part of the other retail areas. Based on this, this project proposes the implementation of performance control indicators of the software development process in the Information Technology (IT) area of a retail. For this, SCRUM was implemented as an agile development methodology, Cycle time for the continuous improvement of the process and Balanced Scorecard (BSC) as its control methodology. After the implementation and stabilization stage of the proposed methodology, there was evidence of a change from 74.27% to 81.82% in the average attention to requirements, this with a growth of 7.55%. Also, the customer satisfaction rate increased from 65.10% to 92.56%. Regarding the cycle time of the software development process in average days, it was realized that it decreased from 50.86 days to 48.88 days. The requirements quality rate rose from 68.30% to 91.90%. Under this context, the notable improvement in the software development process is determined by implementing these indicators that allow continuous improvement of the IT area.
Análisis de integración de parques eólicos a la red de transmisión ecuatoriana. aplicación al proyecto Huascachaca
(2012) Chacho Ochoa, Pablo Florencio; Espinoza Abad, Juan Leonardo
Análisis de la estabilidad actual de la Ermita Sur en la Hidroeléctrica Mazar
(2014) Almache Sánchez, Luis Mario; Bojorque Iñeguez, Jaime Asdrúbal
Mazar Hydroelectric presents several problems related to unstable slopes that affect normal functioning and represent a risk to the dam built. This paper discusses the slope stability of La Ermita Sur, located upstream of the dam in which different factors triggered a movement of this mass. One modeling was performed by computational means of the slope, analyzing primary factor precipitating water. Applying the MEL limit equilibrium method, through method Morgenstern - Price is based model of the physical - mechanical original slope, the water table was varied from its original depth to the worst situation in the slope surface, this modeling was performed for the fault plane assumed in the batter and searched by the program level. Then applying the inverse analysis method sensitivity was found physical- mechanical parameters with which the slope is the limit of his equilibrium. The results obtained by MEL through modeling by the method was verified tense- deformational applying the finite element method using MEF reduced shear, the results between the two methods were similar, areas of slope failure both methods were concordant. In both methods and pseudo- static conditions are applied for static slope failure criterion applied to all cases was the Mohr – Coulomb.
Análisis de la estabilidad del cerro Shishio mediante el empleo de técnicas numéricas
(2011) Vintimilla Avila, Maribel Cristina; Bojorque Iñeguez, Jaime Asdrúbal
Análisis de la estabilidad en pequeña señal del Sistema Nacional Interconectado del Ecuador
(2013) Arias Reyes, Pablo Danilo; Morocho Cabrera, Carlos Alberto
Análisis de la estabilidad global del talud izquierdo del cuenco amortiguador de la presa Mazar
(2010) Lojano López, Janneth del Carmen; Robles Bolaños, Julio
Análisis de la estabilidad y diagnóstico del talud de la Zona no. 2 en Guarumales
(2010) Cevallos Andrade, Leopoldo Santiago; Bojorque Iñeguez, Jaime Asdrúbal; Robles Bolaños, Julio
Análisis de la influencia del ingreso del proyecto ciclo combinado 318 MW dentro de la matriz eléctrica del Ecuador
(2014) Cárdenas Dávila, Carlos Alexis; Goyes Ayala, Jorge Washington
Currently the electric Ecuadorian system to meet the national demand has mainly used generation hydroelectric and thermoelectric, the latter made up of units with gas and steam turbines among the cheapest on the type of fuel they use. Both technologies are used to generate separate electricity. There is the possibility to be exploited more efficiently, using the heat contained in the turbine exhaust gas to produce steam in heat recovery boilers and driving this product at high pressure into a steam turbine, thus producing additional power without incurring consumption of fuel, forming in this way a combined cycle plant. Thanks to the interest of the national Government to increase the national energy supply and that it is of low production costs, combined cycle power project is underway in the central Termogas Machala, located in the sector of Bajo Alto in the province of El Oro. In this plant are currently operating two gas turbine in open cycle to which will be added a third gas turbine of similar characteristics and cycle will close with three heat recovery boilers and their respective steam turbine. With the implementation of this type of power plant, pioneer in the country, will be to increase energy supply in additional 187 MW, completing 318 MW which will produce all the combined cycle. In addition to the above, will reduce production costs of the new plant at 36%, as well as to contribute positively to the improvement of the energy matrix of Ecuador to move with their generation at low cost, more expensive generation technologies manner saving the country 1,070,000.00 US dollars for the operation of the third gas turbine plus steam turbine.
Análisis de la regulación hidrológica de lagunas en una zona de páramo del Austro Ecuatoriano
(2018) Rodas Ochoa, María Verónica; Mora Serrano, Diego Esteban
Andean plateau ecosystems, especially wetlands and páramo areas, are essential for the lowlands in the watersheds of the tropical Andes. The mountainous regions usually capture the humidity of the air mass-es, which can lead to an uncertainty in which the páramo can reach certain degrees of humidity. In this work, it was quantified hydrological regulation processes in páramo zones for a small watershed in the Ecuadorian Andes. Two paired subbasins were identified and characterized: Tomebamba and Culebril-las. The TOPMODEL and VHM hydrological model were implemented, which revealed that, for calibra-tion as well as for validation, the simulated flows of the Tomebamba catchment underestimate the ob-served flows. Therefore, it was determined that the yield of the VHM and TOPMODEL model of the Tomebamba catchment resulted in a satisfactory NSE (0.82 and 0.85); whereas the Culebrillas catch-ment showed an acceptable NSE (0.74 and 0.73). The Tomebamba catchment has a more deteriorated climate area than the other one; its weight and the influence of other external factors show a much better modeling results than the other (supposedly much simpler). Finally, the Tomebamba catchment holds páramo processes, being its regulation capacity higher compared to the Culebrillas one, due to the exist-ence of lagoons. The performance of TOPMODEL is simpler, and, therefore, the most recommended for modeling páramo basins.
Análisis de la siniestralidad y metodología para la identificación de tramos de concentración de accidentes de tránsito en la ciudad de Cuenca
(Universidad de Cuenca, 2022-09-19) Gavilanes Barahona, Héctor Fernando; Correa Barahona, Diego Estuardo
The adequate identification of Traffic Accident Concentration Points (PCAT) is of great importance for cities. One of the most recommended methods for identifying these points is the Empirical Bayesian Method (MEB), which is known to be statistically superior to conventional methods, since it contemplates statistical phenomena typical of random variables, as is the case from the regression to the mean. In the present study, the MEB was applied to the most conflictive intersections identified by processing the accident data of the city of Cuenca registered by the Municipal Public Company of Mobility, Transit and Transportation of Cuenca (EMOV EP) in the period 2016 – 2021. The analysis of results indicates that the vehicles involved, 63.76% are private vehicles, 19.37% are motorcycles and the other types of vehicles have a value of less than 5%. Among the most common causes are disrespecting traffic signs 21.05%, influence of alcohol 19.39% and neglect of traffic conditions 18.68%; being the year with the highest accident rate 2018. From the application of the MEB, it was determined that the intersections with the highest probability of occurrence of accidents are: Av. de las Américas and Calle Turuhuaico with 99.64%, Av. de las Américas and Av. España with 43.69%, Av. de las Américas and Av. Octavio Chacón Moscoso with 27.11%, Av. de las Américas and Av. Remigio Crespo with 27.01%, Av. Héroes de Verdeloma and Av. Gil Ramirez Dávalos with 20.44%, Av. las Américas and Av. Abelardo J. Andrade with 15.52%. The proper identification of these PCAT through the proposed method will be of great help to the Institutions that manage mobility and road safety in the city.