Listar Ambiente y Vida - GIAV por autor "7446587450ae5fc4984fae3331a66538"
Mostrando ítems 1-17 de 17
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Applicability of a modified breakage and coalescence model based on the complete turbulence spectrum concept for CFD simulation of gas-liquid mass transfer in a stirred tank reactor
Niño, Lilibeth; Gelves, German; Ali, Haider; Solsvik, Jannike; Jakobsen, Hugo Atle (Chemical Engineering ScienceAustralia, 2020-01-16)A generalized model for bubble breakage and coalescence is proposed using Computational Fluid Dynamics – CFD for considering the complete energy spectrum. An eulerian model and balance equations are simultaneously used to ... -
Bubble coalescence model effect on oxygen mass transfer using non-newtonian fluids
Niño, Lilibeth; Peñuela Vásquez, Mariana; Gelves, German (Journal of Engineering Science and TechnologyMalasia, 2021-08)A modified bubble coalescence model including rheological conditions and shear forces in non-Newtonian fluids is evaluated using CFD (Computational Fluid Dynamics). Euler's model, along with population balance equations, ... -
CFD: A New Challenge in Bioprocess Engineering
Niño, Lilibeth; Gelves, German; Peñuela, Mariana (International Journal of Applied Engineering ResearchIndia, 2018)Computational Fluid Dynamics (CFD) is a powerful tool based on mathematical applications for modeling transient and spatial transport modes such as mass, momentum and heat transfer in multiphase fluids. Currently, CFD ... -
Computational Implementation of Required Industrial Unit Operations for Bio-Plastic Production From Starch Extracted from Banana Peels by Aerobic Fermentation using Rizophus Oryzae
Gelves, German; Bello, A; Morales, K; Sánchez, L; Lidueñez, V; Leal, A (Journal of Physics: Conference SeriesReino Unido, 2020-11-04)In this research computer modeling was performed with the SuperPro Designer Software to simulate the industrial-scale production of poly-lactic acid using the Rizophus oryzae fungus. The previous to predict the higher ... -
Economic Assessment of Itaconic Acid Production from Aspergillus Terreus using Superpro Designer
Rivera, Christian; Gelves, German; Nieto, Luis M. (Journal of PhysicsReino Unido, 2020-09-13)Itaconic acid is a metabolite produced from biotechnological pathway using the microorganism Aspergillus terreus. It is used in a wide number of sectors such as industry, agriculture and health. Based on its chemical ... -
Evaluating Cost-Effective Culture Media for Nutraceutics Production from Microalgae Using Computer-Aided Large Scale Predictions
Gelves, German (Journal of Physics: Conference SeriesReino Unido, 2020-09-13)The purpose of this research consist of microalgae biomass productivity prediction in a large scale plant from Chlorella vulgaris using SuperPro Designer software. Two culture media were evaluated to identify their ... -
Evaluation of preliminary plant design for Chlorella vulgaris microalgae production focused on cosmetics purposes
Gelves, German; Caicedo, Y; Suarez, C (Journal of Physics: Conference SeriesReino Unido, 2020-11-04). Although there are currently different large-scale microalgae production systems, its performance is subject to high production cost problems. That is why the main goal of this research is analyzing the feasibility of ... -
Gas-Liquid Hydrodynamics Simulation using CFD in a Helical Ribbon Impeller Applied for Non-Newtonian Fluids
Niño, Lilibeth; Peñuela, Mariana; Gelves, German (International Journal of Applied Engineering ResearchIndia, 2018)In the present study Computational Fluid Dynamics applied to non-newtonian fluids was developed in order to characterize the gas-liquid mass transfer in a 10 L bioreactor equipped with a helical ribbon impeller. Gas-liquid ... -
Hydrodynamics Simulation of Different Impeller Geometries Applied to Non-Newtonian Fluids in A Stirred Tank Reactor
Niño, Lilibeth; Peñuela, Mariana; Gelves, German (International Journal of Mechanical and Mechatronics EngineeringPakistán, 2020-10)In the present study bubble breakup and coalescence phenomena applied to non-newtonian fluids were simulated in order to characterize gas-liquid mass transfer in a 10 L bioreactor equipped with different impeller configurations. ... -
Industrial Scale Bioprocess Simulation for Ganoderma Lucidum Production using Superpro Designer
Gelves, German; Niño, Lilibeth; Araque, J (Journal of Physics: Conference SeriesReino Unido, 2020-11-04)The medicinal mushroom Ganoderma lucidum is used by traditional medicine for human infection treatments such as gastric cancer, hypertension, hepatitis, chronic bronchitis and hypocholesterolemia. However, the conventional ... -
Modeling of phycocyanin production from Spirulina platensis using different light-emitting diodes
Niño, Lilibeth; Gelves, German; Rivera, Christian (South African Journal of Chemical EngineeringPaíses Bajos, 2017-07)Phycocyanin is a high-value chromo-protein used in various industries. In this research, a simulation study of kinetics is carried out to identify different light spectra effects on microbial growth and phycocyanin ... -
A modified spin filter for overcoming of gas liquid mass transfer problems in a stirred tank bioreactor
Niño, Lilibeth; Gelves, German; Peñuela, Mariana (Journal of BiotechnologyPaíses Bajos, 2018-08-30) -
Non-Newtonian Behavior Effect on Gas-liquid Mass Transfer using an Anchor Impeller for CSTR Bioreactors: A CFD Approach
Niño, Lilibeth; Gelves, German; Peñuela, Mariana (Indian Journal of Science and TechnologyIndia, 2018-11)Objectives: kL a mass transfer coefficient was predicted using CFD (computational fluid dynamics) for analyzing non-newtonian effects on gas liquid mass transfer in a 10 L bioreactor stirred with an Anchor Impeller. ... -
Recombinant Anti-Thrombin Production from Saccharomyces Cerevisiae: Large Scale Trends Based on Computational Predictions
Pacheco, S; Niño, Lilibeth; Gelves, German (Journal of Physics: Conference SeriesReino Unido, 2020-11-04)Anti-thrombin III is a protein performing anticoagulant function by preventing coagulation process and currently it is used in critical Covid-19 patients. In the present research, recombinant anti-thrombin production at ... -
Simulating hydrodynamics in a Rushton turbine at different stirring velocities applied to non-Newtonian fluids
Gelves, German (Journal of Physics: Conference SeriesReino Unido, 2020-08-05)In this work, gas-liquid hydrodynamics of a Rushton turbine was studied using Computational Fluid Dynamics. Different stirring conditions commonly used in fungal culture applications are simulated. Several scenarios are ... -
Simulating of Microbial Growth Scale Up in a Stirred Tank Bioreactor for Aerobic Processes using Computational Fluid Dynamics
Gelves, German; Niño, Lilibeth; Hernandez, S (Journal of Physics: Conference SeriesReino Unido, 2020-11-04)In this paper, the effects of some empirical scale up criteria (Reynold´s number and Impeller power per bioreactor volume) on gas-liquid mass transfer and microbial growth rates are analyzed using computational fluid ... -
Use of Operational Training Simulation in the Study of Ethanol Operating Conditions: A Powerful Tool for Education and Research Performance Improvement
Gelves, German; Alvarado, Karen; Consuegra, Jessika; Parada, D.; Sepulveda, Nestor; Consuegra, Josep (Journal of PhysicsReino Unido, 2020-09)Currently, virtual education has reached a significant boom in higher education institutions. The latter, considering health emergency due to coronavirus pandemic, which makes it difficult to re-open physical infrastructures. ...