Ciencias Exactas y Ciencias de la Salud
Permanent URI for this collectionhttps://hdl.handle.net/11285/551039
Pertenecen a esta colección Tesis y Trabajos de grado de las Maestrías correspondientes a las Escuelas de Ingeniería y Ciencias así como a Medicina y Ciencias de la Salud.
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- Multi-criteria decision-making fuzzy TOPSIS for the integration of solar energy systems in small and medium-sized mexican manufacturing companies based on the S4 framework(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2023-06-14) Pérez Briceño, Citlaly; Ponce Cruz, Pedro; puemcuervo, emipsanchez; Méndez Garduño, Juana Isabel; Maldonado Romo, Javier; Rojas Hernández, Mario; School of Engineering and Sciences; Campus Ciudad de México; Molina Gutiérrez, ArturoOver the past few years, there has been a significant increase in the demand for electrical energy due to a rise in population and industrial automation. However, most of the electricity worldwide is currently generated from fossil fuels, leading to detrimental environmental and human health effects. To address this issue, using solar energy as a source of electricity has gained popularity. Solar energy not only diversifies energy sources but also offers cost savings and reduces dependence on fossil fuels. Consequently, it leads to a decrease in CO2 emissions and minimizes the overall environmental impact. In Mexico, there needs to be more awareness and knowledge regarding the benefits and potential of solar photovoltaic (PV) systems. As a result, the adoption rate of these systems is slower, particularly among small and medium-sized manufacturing companies. Choosing the appropriate technology and elements for solar PV systems is complex, and the available resources to guide decision-making are limited. Existing frameworks and guidelines for solar PV systems primarily focus on the technical aspects of the installation stage, neglecting other crucial elements and stages in the lifecycle of these systems. Moreover, most of these frameworks are tailored to European, Asian, or North American contexts, with minimal consideration for the Latin American context. Selecting a solar panel company for PV system installation becomes challenging due to a lack of information and multiple factors with varying levels of importance, including technical, economic, environmental, and social aspects. Therefore, decision-makers require a suitable tool and methodology to analyze available choices and select the best option. The main objective of this thesis is to adapt the S4 Framework proposed in the literature. The aim is to determine the representative features that need to be considered within the S4 Framework to adopt PV systems. This adaptation involves employing a multi-criteria decision-making method and integrating sensing, smart, sustainable, and social features. The framework intends to provide guidance and support for decision-makers installing, operating, and disposing of PV systems. To validate the effectiveness and practical applicability of the framework, a case study is conducted in a Mexican machinery and equipment manufacturing company located in Baja, California. The results of the case study demonstrate the practicality and effectiveness of the framework, highlighting its potential to assist decision-makers in the PV system adoption process.
- Integrated concentrating photovoltaic-thermal solar collector and membrane distillation system for desalination and vinasse treatment(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2021-11-17) Santana González, Juan Pablo; Rivera Solorio, Carlos Iván; puemcuervo; Gijón Rivera, Miguel Ángel; García Cuellar, Alejandro Javier; Escuela de ingeniería y Ciencias; Campus MonterreyThis study presents the evaluation to integrate hybrid Concentrating Photovoltaic Thermal (CPVT) collectors with a Vacuum Membrane Distillation (VMD) module as a green alternative to produce freshwater. The CPVT collector provides the thermal and electrical energy required for the VMD to desalinate water. The performance of these integrated solar-assisted desalination technologies is numerically evaluated using TRNSYS. Parametric studies were conducted to find optimal operating conditions regarding the collector’s surface area and the brine’s set point temperature, from which a configuration using 4-collector units and a set point temperature of 55°C was chosen for a multi-city study. Annual weather conditions and specific information about the characteristics and operating conditions of a real CPVT collector and VMD module are considered in the dynamic simulation for 4 coastal cities: Acapulco, MX; La Paz, MX; Nadi, FJ; and Singapore, SG. The system can convert almost 50% of the solar radiation it receives into useful energy (8.2% into electricity and 41.4% into heat). The permeate production varied from 170.365 m3/m2_VMD in Singapore, SG, to 209.415 m3/m2_VMD in Acapulco, MX, showing a clear correlation between the solar radiation received and the performance of the system. Moreover, in a comparative study against a non-solar system, the specific energy cost for every m3 of freshwater produced could be decreased by 80% by implementing the CPVT collector. Additionally, an alternative application for this innovative system was tested, simulating the treatment of vinasses from the tequila production process. During the months with larger incident solar radiation, the performance of the system was optimal, with the peak specific permeate production achieved was 17.33 m3/m2_VMD during May, while the lowest SEC was 0.50 kWh/m3. The results of the simulations showed the exciting potential to use solar energy from hybrid CPVT collectors for a VMD process, not only for desalination in coastal cities but also as a viable technology to contribute to the production of freshwater demanded by industry and society.
- Operation of a photovoltaic system in the mexican electricity market(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2018-05-15) Gutiérrez Andrews, Carlos Alberto; Viramontes Brown, Federico Ángel; Hernández Ramírez, José Martín; Llamas Terrés, Armando Rafael; Gutiérrez Villanueva, EfrainTaking as a study case a Photovoltaic (PV) System installed in the Development and Innovation Center of Schneider Electric a whole study was realized. The main objective was to analyze the operation of a PV system in the Mexican Electricity Market and develop tools that can make easier to evaluate the performance of the installation. It produces less than 0.5 MW, in the current regulation is consider as Distributed Generation (DG). This kind of Power Plants (PP) can be interconnected to the grid and the owner has three contract options: Net Metering, Net Billing and Total Sale of Energy. In this case the better is Net Metering because the building consumes all the energy produced, but by having a contract with a supplier this field could earn Clean Energy Certificates (CEL). Three tools were developed to evaluate the economic and technical performance. The first tool is to graph the downloaded data acquired by the monitoring system. That daily data cannot be graph as detailed by the inverter’s provided interface after a day as if the user downloads the information. The second tool is required to find the greatest values of Irradiance, Temperature or Power in a month. When this tool is feed with the files of the month, each file will be paste in a new Excel workbook’s sheet, but in the first sheet the user, has a recapitulation per day of the greatest values. With all this ordered information could be prepare a generation profile of the area, and that stats can be used in future investment decision and forecasting. Finally, the third tool is dedicated to calculated financial indicators such as Payback and IRR. Some scenarios were studied and after applying some stimulus offered by the government that are reflected in the taxes payment, better results were obtained. With this tool is possible run scenarios and evaluate the profitability of new investments.
- Modelado y Control de un Convertidor CD-CD Boost Intercalado(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2017-05-16) Villarreal-Hernández, Carlos A.; Mayo Maldonado, Jonathan C.; Valdez Reséndiz, Jesús E.; Micheloud Vernackt, OsvaldoEl convertidor propuesto es de tipo intercalado, con alta ganancia y con capacidad de eliminación del rizo de corriente a la entrada. Esta última característica es altamente deseable en un convertidor, pues se ha demostrado que la presencia de rizo de corriente disminuye la vida útil de paneles solares y su eficiencia. La ventaja que se presenta sobre otras topologías, es la posibilidad de seleccionar el punto de operación arbitrario donde se cancela el rizo de corriente. Esto representa una ventaja sobre otras topologías cuyo punto de operación está restringido.
- Hybrid vehicle with stirling engine and thermal energy storage(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2010-05-01) Wieland Sewe, Erik; Sewe, Erik Wieland; 267064; León Rovira, Noel; Rodríguez González, Ciro Ángel; Rodríguez González, Ciro Ángel; Aguayo Téllez, Humberto; Programa de Graduados en Ingeniería; División de Ingeniería y Arquitectura; Campus MonterreyAdvances in electric technology and automotive components make feasible a new kind of hybrid vehicles. The hybrid technology allows gathering advantages from different energy concepts and allows it to eliminate disadvantages which a single energy source or engine concept would present. Hybrid technologies allow using different power sources in one vehicle. Concentrated thermal solar energy is used as primer energy in a vehicle. Basic components are thermal energy storages and Stirling engines. Heat from the sun is gathered in a place outside the car and stored in a tank. The tank is placed in the vehicle and connected to a Stirling engine. A Stirling engine is a device that converts heat energy into mechanical power. The mechanical power is used in a generator to produce electric energy. The vehicle has an electric system with batteries serving as an energy buffer. Physical bases, components and vehicle concepts are described. A market study provides benchmark of Stirling engines and serial hybrid busses. In a case study several options for a possible prototype are revised. For the Circuito Tec service (a service for students living near the university) a detailed analysis is made. With a GPS the driving profile is recorded. A Matlab model uses this data to calculate energy storages sizes and required engine output. In Autodesk Inventor several CAD models are created in order to represent different space concepts. A vehicle with thermal energy storage based on molten glass is compared to conventional and alternative concepts. MSC Adams/car is used to simulate the vehicle dynamics. The influence of a thermal storage tank with the weight of 996kg is observed. Size, weight and price estimation of different thermal-electric vehicles are compared to conventional vehicles.