Ana M. Blanco‐Marigorta

Universidad de Las Palmas de Gran Canaria

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Mohammad Hasan Khoshgoftar Manesh

University of Qom

J.D. Marcos

National University of Distance Education

María José Suárez‐López

Universidad de Oviedo

George Tsatsaronis

Technische Universität Berlin

Alexis Lozano-Medina

Universidad de Las Palmas de Gran Canaria

Antonio Trashorras

Universidad de Oviedo

Tatiana Morosuk

Technische Universität Berlin

David García

Universidad de Oviedo

Juan Ortega

Universidad de Las Palmas de Gran Canaria

L. Diana

Escuela Superior Politecnica del Litoral

Cooperative Institutions

Universidad de Las Palmas de Gran Canaria

University of Qom

Universidad de Oviedo

Escuela Superior Politecnica del Litoral

National University of Distance Education

K.N.Toosi University of Technology

Jan Długosz University

University of North Texas

Technische Universität Berlin

Częstochowa University of Technology

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Evaluation of power and freshwater production based on integrated gas turbine, S-CO2, and ORC cycles with RO desalination unit

Energy Conversion and Management (2020)

Mohammad Hasan Khoshgoftar Manesh P. Firouzi S. Kabiri Ana M. Blanco‐Marigorta

Organic Rankine Cycle

Rankine cycle

Working fluid

10.1016/j.enconman.2020.113607

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Citations (45)

A solar air-cooled high efficiency absorption system in dry hot climates: Reduction of water consumption and environmental impact

Thermal Science (2018)

J.D. Marcos R. Lizarte Fernando Varela E. Palacios Ana M. Blanco‐Marigorta

A solar cooling system with an optimized air-cooled double-effect water/LiBr absorption machine is proposed as a sustainable alternative to meet cooling demands in dry hot climates. This system allows eliminating the cooling towers in those regions of the planet where water is scarce. This work analyses the environmental benefits of this air-cooled system, as well as its environmental foot-prints, compared to a solar water-cooled single effect. In this regard, a methodology has been applied to calculate the annual saving in water consumption produced in a case study: a hospital located in Almer?a, in South of Spain. Further-more, the reduction in energy consumption and CO2 emissions is also quantified since this machine can be driven by solar energy and with higher efficiency than those of single effect.

Water consumption

Absorption refrigerator

10.2298/tsci171204218m

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Citations (1)

“Board Game” aplicado a conceptos de Ingeniería Térmica

Ana M. Blanco‐Marigorta M. J. Suárez-López Antonio Trashorras E. Álvarez Álvarez J. C. Ríos Fernández

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Metodología de evaluación no presencial segura con herramientas de código abierto - [Secure and non-presential assessment methodology with open source tools]

Innovaciones docentes en tiempos de pandemia. (2021)

María José Suárez‐López David García Antonio Trashorras Ana M. Blanco‐Marigorta Alejandro Ramos Martín

La crisis sanitaria, debida a la irrupción del Covid-Sars-2 ha obligado a cambiar tanto la metodología de enseñanza como el modo de evaluación en un tiempo récord. En este trabajo se presenta el diseño y la implementación de una metodología de evaluación, compatible con las plataformas virtuales de dos universidades españolas, utilizando herramientas de código abierto. Con esta metodología, los exámenes se generan de forma automática y aleatoria, garantizando un proceso de evaluación seguro y justo, potenciando el aprendizaje continuo del alumnado y si fuese necesario, la modalidad no presencial. Se ha aplicado a asignaturas relacionadas con la Termodinámica y la Transferencia de Calor en la Universidad de Oviedo y en la Universidad de Las Palmas de Gran Canaria. El grado de satisfacción de los alumnos con este nuevo planteamiento se ha evaluado mediante un cuestionario SEEQ. Los resultados muestran que el grado de satisfacción de los estudiantes alcanzó una puntuación media de 3,5/5 en las dos Universidades. El 45,8 % de los alumnos presentados a examen obtuvieron una calificación media en la evaluación continua superior a 6/10. Suárez López, María José; García Menéndez, David; Gutiérrez Trashorras, Antonio José; Blanco Marigorta, Ana María; Ramos Martín, Alejandro

10.26754/cinaic.2021.0072

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Citations (0)

Aquavalens Project - Report on the results of the analysis in the distribution network: Deliverable D10.4

C. Puigdomenech R. Juarez D. Baquero A. Pla G. Saucedo

Deliverable

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Conventional and advanced 5E analysis of integrated hybrid solar-SCO2combined brayton cycle-organic rankine cycle- RO desalination

Nida Itrat Abbasi Mohammad Hasan Khoshgoftar Manesh Ana M. Blanco‐Marigorta

Organic Rankine Cycle

Brayton cycle

Degree Rankine

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Heat and Mass Transfer in Adsorption Beds of Cooling and Desalination Systems

SSRN Electronic Journal (2022)

Jarosław Krzywański Dorian Skrobek Anna Żyłka Karolina Grabowska Anna Kulakowska

Since greenhouse gas emissions and freshwater scarcity have become the top global risks, looking for new methods to reduce CO2 emissions and increase drinking water production is becoming a significant civilization challenge. One of the promising approaches to addressing these challenges has proven to be adsorption cooling and desalination systems, powered with low-grade thermal energy, including waste heat of the near ambient temperature.Due to the low performance of the existing adsorption chillers with packed beds, caused by poor heat and mass transfer in their fixed beds, the innovative concept of fluidized beds application was elaborated in the paper. Furthermore, the article introduces a novel approach based on artificial intelligence methods for predicting heat and mass transfer within adsorption bed of cooling and desalination systems.Silica gel as the parent adsorption material, and two additives, aluminum, and carbon nanotubes, with different shares, are applied in tests. The water vapor uptake and the convective heat transfer coefficient, measured during experiments and predicted by the developed models, are investigated, and compared. The data evaluated by models are in good agreement with experimental results. The developed models allow to study of the effect of input parameters on the outputs and optimize the operating strategy of the bed. The highest water vapor uptake and the convective heat transfer coefficient, which can be obtained for the considered range of input parameters, are equal to 1.654 g/g and 1212.62 W/m2 K, respectively.

10.2139/ssrn.4128789

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Simulation and Exergoeconomic Analysis of a Trigeneration System Based on Biofuels from Spent Coffee Grounds

Energies (2023)

L. Diana Myrian Santos-Torres Medelyne Mero-Benavides Oscar Patiño Lopez Alexis Lozano Medina

Biofuels have become a source of renewable energy to offset the use of fossil fuels and meet the demand for electricity, heat, and cooling in the industrial sector. This study aims to (a) develop a simulation of a trigeneration system based on a gas turbine cycle and an absorption chiller unit, using biomass and syngas from spent coffee grounds (SCGs) to replace the conventional system currently supplying the energy requirements of an instant coffee plant located in Guayaquil, Ecuador, and (b) carry out an exergoeconomic analysis of the simulated system to compare the effects of different fuels. The results showed an increase in the exergetic efficiency from 51.9% to 84.5% when using a trigeneration system based on biomass instead of the conventional non-integrated system. Furthermore, the biomass-based system was found to have the lowest operating costs ($154.7/h) and the lowest heating, cooling, and power costs ($10.3/GJ, $20.2/GJ, and $23.4/GJ, respectively). Therefore, the results of this analysis reveal that using SCGs as biofuel in this instant coffee plant is feasible for producing steam, chilled water, and power.

Absorption refrigerator

Cogeneration

Chilled water

10.3390/en16041816

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Citations (4)

Exergoeconomic and exergoenvironmental evaluation of the coupling of a gas fired steam power plant with a total site utility system

Energy Conversion and Management (2013)

Mohammad Hasan Khoshgoftar Manesh P. Navid Mohammad Baghestani S. Khamis Abadi Marc A. Rosen

Cogeneration

10.1016/j.enconman.2013.09.053

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