A5021065802- Advanced Combustion Engine Technologies
- Heat Transfer and Optimization
- Biodiesel Production and Applications
- Recycling and Waste Management Techniques
- Combustion and flame dynamics
- Vehicle emissions and performance
- Refrigeration and Air Conditioning Technologies
- Thermochemical Biomass Conversion Processes
- Microplastics and Plastic Pollution
- Heat Transfer and Boiling Studies
- Wind and Air Flow Studies
- Heat Transfer Mechanisms
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Building Energy and Comfort Optimization
- Lubricants and Their Additives
- Heat transfer and supercritical fluids
- Solar Thermal and Photovoltaic Systems
- Municipal Solid Waste Management
- Advancements in Solid Oxide Fuel Cells
- Electrohydrodynamics and Fluid Dynamics
- Radiative Heat Transfer Studies
- High-Temperature Coating Behaviors
- Enzyme Catalysis and Immobilization
- Phase Change Materials Research
- Erosion and Abrasive Machining
Universidad de Guanajuato
2012-2024
Hospital Pedro de Elizalde
2019
The use of plastic as material in various applications has been essential the evolution technology industry and human society since 1950. Therefore, their production waste generation are high due to population growth. Pyrolysis is an effective recycling method for treating because it can recover valuable products chemical petrochemical industry. This work addresses thermal pyrolysis expanded polystyrene (EPS) post-industrial a semi-batch reactor. influence reaction temperature (350–500 °C)...
Effects of heating rate and temperature on thermal-pyrolytic yield a plastic-waste mixture were studied in semi-batch reactor. The the range 380–460 °C rates 10, 19, 28 °C/min evaluated through an experimental multi-level design. results show that higher temperatures or lower residence time reduce pyrolytic oil at expense increasing gaseous products. maximum liquid was 69%, obtained 410 10 °C/min. composition covers wide hydrocarbons; thus, fractionation is necessary before using it as fuel...
Cetane number (CN) is one of the most important parameters affecting diesel fuel behavior. It related to time that elapses between injection and beginning combustion. To determine it, a combustion standardized test, under ASTM D613 regulation, needs be carried out. As this process limiting, since it requires specific engine, CN can approximated from distillation temperatures fuels, providing another dimensionless parameter, named calculated cetane index (CCI). also provides an approach...
Flow maldistribution represents a problem of particular interest in the engineering field for several thermal systems. In flat plate solar collectors, efficiency strongly depends on flow distribution through riser tubes, where uniform causes temperature and therefore higher efficiency. this work, Computational Fluid Dynamics (CFD) numerical analysis has been carried out using commercial software FLUENT®, order to determine distribution, pressure drop hence collector with plates inside...
The use of an internal heat exchanger in vapor compression refrigeration systems one stage is a common practice because it helps to increase the cooling capacity evaporator. Furthermore, refrigerants with low global warming potential becoming more frequent due environmental regulations worldwide. Thus, this paper presents evaluation improvement produced by inclusion cycle (IHXC) experimental installation from viewpoint exergy, economic and through exergoeconomics, Specific Life Cycle Climate...
Pyrolysis of plastic waste generates alternative fuels that are useful for thermal devices. However, it is the subsequent fractionation process truly distinguishes itself, refining these to a quality comparable petroleum derivatives such as diesel and gasoline, thereby making them suitable direct use in internal combustion engines. This study evaluated effect on emissions an engine fueled with oil diesel-like fuel its blend biodiesel. The tests were conducted on-road using typical light-duty...
This article presents a numerical study of solid particle erosion (SPE) on the nozzle first stage steam turbine. The analysis consists application Eulerian conservation equations to continuous phase and comparison DNV-Haugen, Neilson-Gilchrist, Tulsa-Ahlert, Tabakoff-Wakeman models discrete phase. is developed using computational fluid dynamics software based finite volume method. permits selaction model which best predictions know SPE influence blade surface, with variation parameters such...
This paper shows the application of a graphical design tool originally developed for shell and tube heat exchangers extended to case compact units. Such provides space where available options that meet duty allowable pressure drops are displayed various geometrical parameters. representation gives designer overall view allows him reconcile specifications with selection unit given application. The methodology is demonstrated using algorithm spiral exchangers. Although derived from concept...
Abstract An analysis of the flow that depends on fuel composition (natural gas) in combustor–transition piece system, applying computational fluid dynamics, is presented. The study defines velocity and temperature profiles at exit transition hot streak along system. variation amount N2 contained fuel, track influences distribution input first stage vanes blades gas turbine. takes place a three-dimensional model steady state using FLUENT® 6.3.26, k-ε turbulence chemical equilibrium to...
El PET es uno de los polímeros más utilizados en la industria debido a sus propiedades mecánicas y químicas, así como su resistencia resistencia. No obstante, enorme acumulación el medio ambiente ha generado inquietudes significativas. Los métodos tradicionales reciclaje mecánico presentan limitaciones calidad del producto final, lo que dado lugar un creciente interés procesos termoquímico pirólisis, gasificación licuefacción. Estos permiten descomposición componentes químicos básicos...
El tereftalato de polietileno (PET) es ligero, resistente, transparente y versátil sobre todo bajo costo, dichas propiedades hacen que este material esté presente en variedad aplicaciones como la industria alimentaria empaques. Por tal motivo, existe una alta demanda creciente producción del PET, se estima producen más 24.8 Mt anuales. Si bien el reciclaje PET está desarrollado tasa resulta ser mayor a otros plásticos, uso repetitivo hace desgaste pierda ciertas mecánicas. La pirólisis...
The very intensive calculations necessary to define a performance map requiring evaluation of over hundred individual operating points can be efficiently conducted with accelerated multizone for engine cycle simulation, leading definition regions acceptable and optimum homogeneous charge compression ignition operation. Accelerated simulation has the virtue enabling accurate many conditions based on thermal stratification data from single fluid mechanics run at motored conditions. This is...
La combustión por compresión de una mezcla pobre homogénea, o premezclada, ha surgido en los últimos años como alternativa para la reducción simultánea las emisiones óxidos nitrógeno (NOx) y partículas (PM) motores interna. Este novedoso proceso se puede considerar un híbrido entre encendido provocado (MEP) (MEC), ya que usa homogénea (o altamente premezclada) aire-combustible provocado, pero comprime hasta su auto-ignición, compresión. Aunque el nombre más usado identificar este sido HCCI...