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Peláez Samaniego, Manuel Raúl

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Birth Date

1971-12-20

ORCID

0000-0002-7618-9474

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16310499500

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Universidad de Cuenca, Cuenca, Ecuador
Universidad de Cuenca, Facultad de Ciencias Químicas, Cuenca, Ecuador
Universidad de Cuenca, Departamento de Química Aplicada y Sistemas de Producción, Cuenca, Ecuador

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Ecuador

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Facultad de Ciencias Químicas
Fundada en 1955 como la Escuela de Química Industrial, la facultad ha sido un pilar fundamental en la formación de profesionales altamente capacitados, comprometidos con el desarrollo de la ciencia, la educación y el bienestar social. La Facultad de Ciencias Químicas pone a consideración su trabajo académico, investigativo y de vinculación con la sociedad, desarrollado a través de la práctica de una docencia de calidad, investigación e innovación en su área de estudio. Desde su oficio de conocimiento se permite contribuir a la sociedad con cuatro carreras: Bioquímica y Farmacia, Ingeniería Química, Ingeniería Ambiental e Ingeniería Industrial. Su carta de presentación en la Academia, la coloca como una dependencia dinámica, donde confluye la solidez de una trayectoria de más de sesenta años. Aquí se trabaja en una continua formación de pregrado y posgrado de la más alta calidad, mediante la mejora continua con la innovación y a la vanguardia de las ciencias químicas.

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Peláez Samaniego

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Manuel Raúl

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2018 - 201912020 - 20212
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Now showing 1 - 3 of 3
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    Publication
    Development of an automated tracer testing system for UASB laboratory-scale reactors
    (2021) Cisneros Ramos, Juan Fernando; Nopens, Ingmar; Pinos Vélez, Verónica Patricia; Peláez Samaniego, Manuel Raúl; Alvarado Martínez, Andrés Omar
    Residence time distribution (RTD) curves play an essential role in the hydraulic characterization of reactors. Current approaches for obtaining RTD curves in laboratory-scale reactors are time-consuming and subject to large errors. Thus, automated systems to obtain RTD curves in laboratory-scale reactors are of great interest for reducing experimental errors due to human interaction, minimizing experimentation costs, and continuously obtaining experimental data. An automated system for obtaining RTD curves in laboratory-scale reactors was designed, built, and tested in this work. During the tests conducted in a cylindrical upflow anaerobic sludge blanket (UASB) reactor, the system worked properly using the stimulus–response pulse technique with sodium chloride as a tracer. Four main factors were found to affect the representativeness of the RTD curves: flow stabilization time, test water conductivity, temperature, and surface tension. A discussion on these factors and the corresponding solutions is presented. The RTD curves of the UASB reactor are left-skewed with a typical tank reactor’s flow shape with channeling and dead zones. A transitory flow behavior was evidenced in the reactor, which indicates the influence of internal turbulent flow structures. The system proposed herein is expected to help study the hydraulics of reactors using laboratory-scale models more efficiently
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    Electricity sector in Ecuador: an overview of the 2007–2017 decade
    (2018) Ponce Jara, Marcos A.; Castro, M m; Peláez Samaniego, Manuel Raúl; Espinoza Abad, Juan Leonardo; Ruiz, Elena
    The Ecuadorian electricity sector has undergone several changes during the past decade. The objective of this paper is twofold: a) to show how the Ecuadorian electricity sector has evolved from 2007 to 2017, and b) to discuss the relationship between energy policies and their impacts on electricity supply, management, tariffs, and the country's economy. Although oil remains as the main energy source and the leading driver for economic revenue, several hydropower projects have been built or are under construction intending in part to reduce the country's dependence on oil. The installed hydropower capacity in the country in 2017 is approximately 81% higher than in 2007 and it is expected that, by 2018, approximately 93% of the electricity will be produced from hydropower. Currently, biomass and biogas contribute with 1.8% of the total electricity generation, but only 0.6% of the electricity is produced in wind and solar farms. Adoption of smart grid technologies is key to transform the Ecuadorian electricity network and to positively impact the quality of the electricity supply. The future of the Ecuadorian electricity sector relies on the successful implementation of the new Organic Law of Public Service of Electricity and on external financing for new energy projects.
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    Publication
    Potential and impacts of cogeneration in tropical climate countries: Ecuador as a case study
    (2020) Peláez Samaniego, Manuel Raúl; Espinoza Abad, Juan Leonardo; Jara Alvear, José Estuardo; Arias Reyes, Pablo Danilo; Maldonado Arias, Fernando Guillermo; Recalde Galindo, Patricia Elizabeth; Rosero Rivera, Pablo Vinicio; García Pérez, Tsai
    High dependency on fossil fuels, low energy e ciency, poor diversification of energy sources, and a low rate of access to electricity are challenges that need to be solved in many developing countries to make their energy systems more sustainable. Cogeneration has been identified as a key strategy for increasing energy generation capacity, reducing greenhouse gas (GHG) emissions, and improving energy e ciency in industry, one of the most energy-demanding sectors worldwide.However, more studies are necessary to define approaches for implementing cogeneration, particularly in countries with tropical climates (such as Ecuador). In Ecuador, the National Plan of Energy E ciency includes cogeneration as one of the four routes for making energy use more sustainable in the industrial sector. The objective of this paper is two-fold: (1) to identify the potential of cogeneration in the Ecuadorian industry, and (2) to show the positive impacts of cogeneration on power generation capacity, GHG emissions reduction, energy e ciency, and the economy of the country. The study uses methodologies from works in specific types of industrial processes and puts them together to evaluate the potential and analyze the impacts of cogeneration at national level. The potential of cogeneration in Ecuador is ~600 MWel, which is 12% of Ecuador’s electricity generation capacity. This potential could save ~18.6 106 L/month of oil-derived fuels, avoiding up to 576,800 tCO2/year, and creating around 2600 direct jobs. Cogeneration could increase energy e ciency in the Ecuadorian industry by up to 40%.