A5039500091- Thermochemical Biomass Conversion Processes
- Spectroscopy and Laser Applications
- Advanced Chemical Sensor Technologies
- Process Optimization and Integration
- Energy and Environment Impacts
- Combustion and flame dynamics
- Air Quality and Health Impacts
- Fire dynamics and safety research
- Environmental Impact and Sustainability
- Granular flow and fluidized beds
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Advanced Control Systems Optimization
- Vehicle emissions and performance
- Iron and Steelmaking Processes
- Global Energy and Sustainability Research
- Phase Change Materials Research
- Extremum Seeking Control Systems
- Biodiesel Production and Applications
- Water-Energy-Food Nexus Studies
- Energy Efficiency and Management
- Biofuel production and bioconversion
- Environmental and Ecological Studies
- Greenhouse Technology and Climate Control
- Agricultural and Food Sciences
- Higher Education Teaching and Evaluation
University of Concepción
2008-2024
In south-central Chile, wood stoves have been identified as an important source of air pollution in populated areas. Eucalyptus (Eucalyptus globulus), Chilean oak (Nothofagus oblique), and mimosa (Acacia dealbata) were burned a single-chamber slow-combustion stove at controlled testing facility located the University Concepción, Chile. each experiment, 2.7-3.1 kg firewood combusted while continuously monitoring temperature, exhaust gases, burn rate, collecting particulate matter samples...
A three-dimensional computational model was developed to describe the coal-gasification processes inside fluidized-bed reactors. The commercial multi-purpose CFD code FLUENT 6.3 employed, taking into account drying, volatilization, combustion and gasification processes. Both gas phase solid were described using a eulerian approach exchanges of mass, energy momentum between phases. disperse kinetic theory granular flows. chemical involved five heterogeneous homogeneous reactions, tracking...
El gas licuado de petróleo (GLP) es un combustible origen fósil ampliamente utilizado en aplicaciones residenciales, comerciales e industriales. Los sistemas GLP deben diseñarse y dimensionarse bajo estándares mínimos seguridad, los cuales son establecidos normativas nacionales internacionales. Un sistema está conformado por recipientes almacenamiento del combustible, tuberías, válvulas, medidores, equipos consumo elementos protección seguridad. Estos ser dimensionados seleccionados para...
A nonintrusive low-cost sensor based on silicon photodiode detectors has been designed to analyze the formation and behavior of excited CH(*) C(2)(*) radicals in combustion process by sensing spectral emission hydrocarbon flames. The was validated performing two sets experiments for both nonconfined confined For a oil flame, responses axial intensity were highly correlated with measurements obtained radiometer. gas flames ratio between signal corresponding successfully CO pollutant emissions...
We present a study for optimization of combustion process based on optical measurements. First, we adapt data-driven Hammerstein model and key variables in laboratory scale boiler. then discuss the concepts diagnosis, flame spectrum analysis inclusion control system. compare boiler manual operation, conventional method energetic performance index advanced methods variables, including empirical information related to pollutants emissions. The most relevant result is reduction 13% average...
Current air pollution episodes from fine particulate matter (PM2.5) in the Concepcion Metropolitan Area generate a necessity to assess alternatives reduce these emissions under different regulatory schemes. The study shows
A three-dimensional computational model was developed to describe the coal-gasification processes inside fluidized-bed reactors. The commercial multi-purpose CFD code FLUENT 6.3 employed, taking into account drying, volatilization, combustion and gasification processes. Both gas phase solid were described using a eulerian approach exchanges of mass, energy momentum between phases. disperse kinetic theory granular flows. chemical involved five heterogeneous homogeneous reactions, tracking...
RESUMENSe evalúa económicamente la utilización de tecnología gasificación carbón en generación energía eléctrica, utilizando información secundaria y el enfoque valoración opciones reales mediante árboles binomiales 2 variables.Se analiza caso adaptar una central existente gas natural ciclo combinado (NGCC) para syngas a partir carbón; un segundo se instalación nueva termoeléctrica pulverizado (PC) o alternativamente integrada (IGCC).En este último opción "switching" combustible.Para los...
La asignatura de "Integración a través CDIO", implementada en el sexto semestre Ingeniería Mecánica y Aeroespacial la Universidad Concepción, busca mitigar desconexión entre conocimiento teórico práctica. A metodología CDIO (Concebir, Diseñar, Implementar Operar), los estudiantes desarrollan proyectos prácticos como camiones barcos escala equipos 4 5 personas. evalúa competencias clave del perfil egreso, resolución problemas, diseño, comunicación efectiva, trabajo equipo, experimentación....
Combustion plays a central role in our everyday life. Monitoring and control of combustion processes are important to satisfy environmental constraints, as well reach an optimal performance. This work describes the characterization flames by using artificial neural networks. Generalized Hebbian learning (GHL) is applied extract meaningful components from images; so that operating conditions process can be inferred analyzing just few components. The experimental results demonstrate GHL...
A computational CFD model representing the behavior of a condensing heat exchanger used in domestic heating and hot water applications has been presented validated, obtaining flow output gas temperature error 7%. An analysis internal aerodynamic performance revealed need for geometry enhancements which involved increasing number combustion passages, reducing cannon diameter, incorporating turbulence generators.The geometric modifications produced significant increase variables interest...
A non-intrusive method for monitoring flames in gas burners is presented.The based on the optical analysis of flame by using a Silicon Photodiodes array and set interference filters.The covered wavelengths evaluate formation behaviour excited CH* C 2 * radicals confined flames.The these carried out reaction region at burner exit, where */CH* ratio signals provide enough information to identify optimal fuel-air order obtain boiler maximal efficiency prevent an incomplete combustion.The...
On the basis of official statistics, and data obtained directly companies sector cellulose Kraft, there are shown characteristics use biomass like energetic waste matter used by sector. There identified volumes, sources, costs Specific Consumer’s indicators Energy, for type energy, impact efficiency in generation electricity. The most relevant aspects study reflect an inadequate management incorporation technology only with objectives physical increase production without exact conscience...