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Copyright of Ingeniería del Agua is the property of Universidad Politecnica de Valencia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This article presents an experimental study on heat conduction in a metal bar using a thermal camera and computational simulation. Two cases are analyzed: one with the isolated bar in contact with two heat sources, and another with the uninsulated bar and one end in contact with a heat source. A thermal camera is used to capture temperature images of the bar in both cases. Additionally, a computational simulation is performed using the finite difference method to solve the one-dimensional heat equation, and a satisfactory agreement is obtained between the experimental results and the theoretical modeling. The article proposes a laboratory practice for thermodynamics courses that uses a thermal camera to measure temperature distribution in a bar, and it is concluded that this tool is useful for observing and quantifying phenomena related to thermal energy. [Extracted from the article]

Copyright of Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales is the property of Academia Colombiana de Ciencias Exactas, Fisicas y Naturales and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Latin-American Journal of Physics Education is the property of Latin-American Physics Education Network and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Boletín de Matemáticas is the property of Universidad Nacional de Colombia, Facultad de Ciencias Economicas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Visión Electrónica is the property of Fondo de Universidad Distrital Francisco Jose de Caldas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Latin-American Journal of Physics Education is the property of Latin-American Physics Education Network and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Revista Iberoamericana de Ingeniería Mecánica is the property of Editorial UNED and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This work presents a step-by step calculation strategy to solve the equilibrium model applied to an absorption column. The algorithm used manipulates the equations of the column by grouping them into sets for each stage. Each group is treated separately through a flash calculation. This is a generalization of the algorithm for extraction cascades, which now covers two more cases: a) recirculation between stages and, b) the possibility of several feeding modes. Three case studies with specific settings are presented: a) A column with a partial reboiler and specified heat flow; b) a column with several feeding modes; and c) a column with recirculation between stages. [ABSTRACT FROM AUTHOR]

This paper presents a heat transfers study in a hollow concrete blocks wall to know its thermal resistance. A one dimensional steady-state model was developed, which includes conduction, radiation and convection. The model was solved numerically using Gauss-Seidel iterative method. The simulation was run hourly for two days in climatic extreme conditions. The thermal resistance average value obtained was 0.18 °Cm²/W with variations of 2.3% to 23%. The average contribution to the total heat flow for every transfer mechanism is: 25%, 19% and 56% by conduction, convection and radiation respectively. The wall presents thermal resistance values which tend to decrease with the increase of temperature differential. This aspect presents disadvantages for thermal behavior in warm climate and the radiation into the block cavity is the most important heat transfer process across the wall. [ABSTRACT FROM AUTHOR]

Copyright of DYNA - Ingeniería e Industria is the property of Publicaciones Dyna SL and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Ingeniería Hidráulica en México is the property of Instituto Mexicano de Tecnologia del Agua (IMTA) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the present work is made an evaluation of the approach of the results among the analytic and numeric solution of parabolic partial differential equations applied to the transfer of heat by conduction. It is taken as physical model the transfer of heat by conduction through a plane wall. The numeric results are obtained applying the outline of explicit and completely implicit discretización being concluded that at same space and increments the results most approximate to the analytic ones are those corresponding to the explicit outline. [ABSTRACT FROM AUTHOR]

In this work we present the application of a numerical method of the one-dimensional diffusion equation in the Ga1-xInxAsySb1-y growth process by Liquid Phase Epitaxy. This method allows us to calculate the concentration profiles in the liquid solution of Ga, In, As and Sb, as well as to evaluate the influence of the cooling rate in the growth process. For the analysis the precursor solution was divided into 25 segments of equal thickness b along the z direction, so we calculated in each segment the evolution of the molar fraction of the four chemical elements. We also calculated the growth rate for different time's intervals τ by means of concentration gradients in the liquid-solid interface. The thickness of the growing film, for different growth times, was evaluated. The variation of the film stoichiometry along the growth process was evaluated. [ABSTRACT FROM AUTHOR]