Listar por autor "James Rivas, Arthur"
Mostrando ítems 1-16 de 16
-
Airflow and insulation effects on simultaneous syngas and biochar production in a top-lit updraft biomass gasifier
James Rivas, Arthur; Yuan, Wenqiao; Wang, Donghai; Boyette, Michael D. (2017-10-11)The objective of this study was to understand the effect of airflow and insulation on syngas and biochar generations of rice hulls and woodchips in a top-lit updraft gasifier. Biochar yield decreased with increasing airflow. ... -
Aislante térmico a base de materiales orgánicos
Canto, Anthony; Batista, María; Sanchez, Joel; Moreno, Manuel; James Rivas, Arthur; Canto, Anthony; Batista, María; Sanchez, Joel; Moreno, Manuel; James Rivas, Arthur -
Biomass carbonization - Production and characterization of biochar from rice husks
Bethancourt, Geomara; James Rivas, Arthur; Villarreal, José E.; Marín-Calvo, Nacarí (2019 7th International Engineering, Sciences and Technology Conference (IESTEC)2019 7th International Engineering, Sciences and Technology Conference (IESTEC), 2019-12-30)El presente trabajo consistió en producir y caracterizar carbón vegetal a partir de la cascarilla de arroz. La cascarilla de arroz fue generada en un reactor de flujo ascendente tipo Top-lit. Este proceso fue favorable ... -
Characterization of Biochar from Rice Hulls and Wood Chips Produced in a Top-Lit Updraft Biomass Gasifier
James Rivas, Arthur; Yuan, Wenqiao; Boyette, Michael D.; Wang, Donghai; Kumar, Ajay (2016-01-01)The objective of this study was to characterize biochar produced from rice hulls and wood chips in a top-lit updraft gasifier. Biochar from four airflows (8, 12, 16, or 20 L min-1) and two insulation conditions (not insulated ... -
Computational Fluid Dynamics Simulation of Coal Gasification in a Circulating Fluidized Bed Reactor
Escala, Manuel; James Rivas, Arthur (2019-10-09)One of the applications of coal as a fuel is the production of gas through circulating fluidized bed technology. The modeling of these systems allows verifying and optimizing the design and operation parameters of gasifiers ... -
Development of a Prototype for Solar Radiation Exploitation on Galvanized Metal Roofs in Panama
Labastid C., Dayberto; Bolobosky, Marco; James Rivas, Arthur; Mogollón, Luis (2019 7th International Engineering, Sciences and Technology Conference (IESTEC)2019 7th International Engineering, Sciences and Technology Conference (IESTEC), 2019-10-09)The solar energy is an inexhaustible resource available in many areas of our planet. The objective of this investigation is to develop a prototype that takes advantage of the incident solar energy on metal roofs of the ... -
The Effect of Biomass Physical Properties on Top-Lit Updraft Gasification of Woodchips
James Rivas, Arthur; Yuan, Wenqiao; Boyette 2, Michael D. (2016-04-12)The performance of a top-lit updraft gasifier affected by biomass (pine wood) particle size, moisture content and compactness was studied in terms of the biochar yield, biomass burning rate, syngas composition and tar ... -
The Effect of Gasification Conditions on the Surface Properties of Biochar Produced in a Top-Lit Updraft Gasifier
James Rivas, Arthur; Yuan, Wenqiao; Wang, Duo; Wang, Donghai; Kumar, Ajay (2020-01-19)The effect of airflow rate, biomass moisture content, particle size, and compactness on the surface properties of biochar produced in a top-lit updraft gasifier was investigated. Pine woodchips were studied as the feedstock. ... -
Estudio de las investigaciones realizadas en el programa de maestría en ciencias de la ingeniería mecánica Universidad Tecnológica de Panamá
Marín, Nacarí; James Rivas, Arthur; Garcia, Deyka; Bethancourt, Geomara; de Palma, Anet; Marín, Nacarí; James Rivas, Arthur; Garcia, Deyka; Bethancourt, Geomara; de Palma, Anet (2018-01-01)En este documento se presenta un estudio sobre la relación de cada una de las investigaciones que han sido desarrolladas en el Programa de Maestría en Ciencias de la Ingeniería Mecánica y su pertinencia con el Plan Estratégico ... -
Folleto de Uso de Celdas Peltier para la creación de proyectos que incentiven a los estudiantes de las comunidades de difícil acceso para optar por bachilleres científicos
James Rivas, Arthur; (2020-05-05)Actualmente, el cuarenta por ciento (40%) de los jóvenes que se encuentran recibiendo clases han abandonado sus estudios en nuestro país (según datos del MEDUCA de Octubre de 2019); existen diversos motivos que conducen a ... -
Guía para la integración de un turbocargador a un motor de combustión interna con bio-oil como combustible.
James Rivas, Arthur; James Rivas, Arthur (2020-05-05)Este folleto tiene como objetivo servir como referencia para la implementación de un turbocargador en un motor de combuetión interna. Los cálculos aquí presentados son una referencia al desarrollo de esta actividad. Para ... -
Implementación de un Intercambiador de Calor en Techos de Zinc
Labastid, Dayberto; Bolobosky, Marco; Mogollón, Luis; James Rivas, Arthur; Labastid, Dayberto; Bolobosky, Marco; Mogollón, Luis; James Rivas, Arthur -
Introduction to the Application of Phase Change Materials under Tropical Climate of Panama
Harris, Itamar; Ortega Del Rosario, Maria De Los Á.; James Rivas, Arthur; Bruneau, Denis (2019 7th International Engineering, Sciences and Technology Conference (IESTEC)2019 7th International Engineering, Sciences and Technology Conference (IESTEC), 2016-10-09)Phase change materials (PCM) are materials with the ability to store a large amount of energy (latent heat) during their change from solid to a liquid phase. This takes place at a certain melting temperature. Amid the ... -
OTEC Alternative for the Electric Power Generation in Panama
López Tenorio, Guillermo; James Rivas, Arthur; De Los Angeles Ortega, Maria; Jurado, Francisco (2019 7th International Engineering, Sciences and Technology Conference (IESTEC)2019 7th International Engineering, Sciences and Technology Conference (IESTEC), 2019-12-30)This document presents a qualitative analysis of surface temperatures of the oceanic territory of Panama. These temperatures represent an indication of the potential of the thermal resource in the oceanic territory of ... -
Simultaneous Biochar and Syngas Production in a Top-Lit Updraft Biomass Gasifier
James Rivas, Arthur (2015-01-01)Biomass materials can be converted to a wide variety of products, e.g., biochar and syngas through thermochemical conversions. In this study, the thermochemical conversion of biomass residues was carried out in a top-lit ... -
Water Quality Evaluation of the Cabra River Using Biological Indicators
Ortega Baso, Nimia I; Cedeño, Eliezer; Espino, Kleveer; James Rivas, Arthur; Ulises Jiménez, José (2019 7th International Engineering, Sciences and Technology Conference (IESTEC)2019 7th International Engineering, Sciences and Technology Conference (IESTEC), 2019-10-09)The objective of this study was to evaluate the water quality of the Cabra River through the use of aquatic macroinvertebrates implementing the EPT and BMWP/Pan indexes. The diversity of orders and families of macroinvertebrates ...