Search Results - "Bula, Antonio"

Gasification of biomass wastes in an entrained flow gasifier: Effect of the particle size and the residence time by Hernández, Juan J., Aranda-Almansa, Guadalupe, Bula, Antonio

“…Experimental tests in an entrained flow gasifier have been carried out in order to evaluate the effect of the biomass particle size and the space residence…”
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Instantaneous in-Cylinder Volume Considering Deformation and Clearance due to Lubricating Film in Reciprocating Internal Combustion Engines by Consuegra, Franklin, Bula, Antonio, Wilson Guillín, Sánchez, Jonathan, Jorge Duarte Forero

“…A new methodology for predicting the real instantaneous in-cylinder volume in the combustion chamber of a reciprocating internal combustion engine is…”
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1,2—Propanediol Production from Glycerol Derived from Biodiesel’s Production: Technical and Economic Study by Restrepo, Juan B., Paternina-Arboleda, Carlos D., Bula, Antonio J.

“…For every nine tons of produced biodiesel, there is another ton of glycerol as a byproduct. Therefore, glycerol prices dropped significantly worldwide in…”
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Improving the Gordon-Ng Model and Analyzing Thermodynamic Parameters to Evaluate Performance in a Water-Cooled Centrifugal Chiller by Foliaco, Blanca, Bula, Antonio, Coombes, Peter

“…The Gordon-Ng models are tools that have been used to estimate and evaluate the performance of various types of chillers for several years. A 550 TR…”
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Two-Dimensional Impact Modelling with Three Degrees of Freedom and Its Application in the Dynamics of Planing Hulls by Algarín, Roberto, Bula, Antonio

“…Planing boat dynamics are a complex phenomenon and the maneuver forces acting on these kind of hulls are difficult to predict. In the current work, a…”
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Energy, Exergy and Economic Evaluation Comparison of Small-Scale Single and Dual Pressure Organic Rankine Cycles Integrated with Low-Grade Heat Sources by Fontalvo, Armando, Solano, Jose, Pedraza, Cristian, Bula, Antonio, Gonzalez Quiroga, Arturo, Vasquez Padilla, Ricardo

“…Low-grade heat sources such as solar thermal, geothermal, exhaust gases and industrial waste heat are suitable alternatives for power generation which can be…”
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Potential of hybrid radiant cooling with infrared-transparent membranes to improve thermal comfort in hot and humid climate by Albuja, Rafael, Foliaco, Blanca, Bula, Antonio, Gonzalez-Quiroga, Arturo

“…•Condensation risk limits radiant cooling in a hot and humid climate.•Infrared-transparent membranes prevent condensation on radiant cooling surfaces.•Radiant…”
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High ambient temperature effects on the performance of a gas turbine-based cogeneration system with supplementary fire in a tropical climate by Pinilla Fernandez, Daniel Armando, Foliaco, Blanca, Padilla, Ricardo Vasquez, Bula, Antonio, Gonzalez-Quiroga, Arturo

“…High ambient temperature negatively affects gas turbine performance, especially in a tropical climate. Cogeneration improves fuel utilization by taking…”
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Experimental air conditioning energy evaluation under Caribbean climate conditions by Ramirez-Leon, Hermes, Gonzalez-Carmona, Maria Angelica, Jiménez-Cabas, Javier, Escorcia-Gutierrez, José, Bula, Antonio

“…A 23 factorial design was performed to analyze the performance of a mini-split air conditioning system under several psychrometric air conditions at the…”
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Gasification of solid biomass or fast pyrolysis bio‐oil: Comparative energy and exergy analyses using AspenPlus by Buelvas, Ana, Quintero‐Coronel, Daniel A., Vanegas, Oscar, Ortegon, Katherine, Bula, Antonio, Mesa, Jaime, González‐Quiroga, Arturo

“…The conversion of biomass residues into syngas through gasification is attractive for energy and process industry applications. However, transportation,…”
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Comparison of an analytical and computational fluid-dynamics models of a commercial Ranque-Hilsch vortex tube operating with Air and Methane by Ahumada, Luz Marlen, Bula Silvera, Antonio José, Melendez Valencia, Kevin Andres, Medina Suarez, Julio

“…This paper presents a comparison between the behavior predicted by a computational fluid-dynamic model (CFD) and an analytical model for a commercial vortex…”
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Evaluation of performance and early degradation of a 180.8 KWP rooftop on a grid-connected photovoltaic system in a Colombian tropical region environment by Audivet, Cinthia, Romero, Elena, García, Jesús, Fonseca, Ana, Pinzón, Horacio, Bula, Antonio, Sanjuan, Marco

“…The use of renewable energy such as photovoltaic is growing. According to IRENA, these systems are one of the most dynamic generation technologies. The global…”
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Experimental data for an air-conditioning system identification by Ramírez, Hermes, Jiménez-Cabas, Javier, Bula, Antonio

“…In this article, data from a 3.5kW mini split air conditioning is presented. A screening 23 design experiment was performed to evaluate the effects of indoor…”
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Thermal Optimization of a Dual Pressure Goswami Cycle for Low Grade Thermal Sources by Guzmán, Gustavo, De Los Reyes, Lucía, Noriega, Eliana, Ramírez, Hermes, Bula, Antonio, Fontalvo, Armando

“…This paper presents a theoretical investigation of a new configuration of the combined power and cooling cycle known as the Goswami cycle. The new…”
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Performance analysis of a commercial fixed bed downdraft gasifier using palm kernel shells by Verdeza-Villalobos, Arnaldo, Lenis-Rodas, Yuhan Arley, Bula-Silvera, Antonio José, Mendoza-Fandiño, Jorge Mario, Gómez-Vásquez, Rafael David

“…This work analyzes the use of palm kernel shells (PKS) produced by the Colombian palm oil mill industry, for purposes of fueling a commercial downdraft fixed…”
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Performance and emission analysis of cassava peel waste pyrolysis oil-hydrogen-diesel blends in a compression ignition engine by Estrada-Diaz, Luis, Hernández-Comas, Brando, Bula-Silvera, Antonio, Gonzalez-Quiroga, Arturo, Duarte-Forero, Jorge

“…As the world moves away from fossil fuels and embraces sustainable energy sources, the need for sustainable fuels for transportation becomes paramount. This…”
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Modeling and Numerical Solution of Coal and Natural Gas Co-Combustion in a Rotary Kiln by Barraza, Cesar L., Bula, Antonio J., Palencia, Argemiro

“…Due to the great importance of rotary kilns in the cement industry and the fact that these systems are known to be high energy consumers, a model was developed…”
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Experimental study of flat plate cooling using draft induced by a submerged radial jet by Palencia-Diaz, Argemiro, Barraza-Botet, Cesar, Bula-Silvera, Antonio José

“…An experimental research has been conducted for evaluating heat transfer in a modified configuration of a submerged radial jet, so it was possible to extract…”
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SYNGAS FOR METHANOL PRODUCTION FROM PALM OIL BIOMASS RESIDUES GASIFICATION by Bula, Antonio Jose; Universidad del Norte

“…In Colombia, Biodiesel is produced from palm oil and methanol; this methanol could be obtained from gasification of the raw palm oil residuals. The complete…”
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Combustion and Performance Evaluation of a Spark Ignition Engine Operating with Acetone–Butanol–Ethanol and Hydroxy by Guillin-Estrada, Wilson, Maestre-Cambronel, Daniel, Bula-Silvera, Antonio, Gonzalez-Quiroga, Arturo, Duarte-Forero, Jorge

“…Alternative fuels for internal combustion engines (ICE) emerge as a promising solution for a more sustainable operation. This work assesses combustion and…”
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