Análisis y simulación mediante CFD (Computacional Fluid Dynamics) de Ansys del comportamiento térmico del refrigerante 134a en un condensador dentro de un ciclo de refrigeración.
The present document contents the design of thermal analysis and simulation by Ansys CFD (Computational Fluid Dynamics) of the thermal behavior of the 134a refrigerant in a condenser. These simulation systems make designs very similar to reality, without making constructions about error experimentat...
Autor Principal: | Lugmania Endara, Laura del Carmen |
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Otros Autores: | Cisneros Recalde, Rodrigo Amir |
Formato: | bachelorThesis |
Idioma: | spa |
Publicado: |
2018
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Materias: | |
Acceso en línea: |
http://dspace.ups.edu.ec/handle/123456789/15928 |
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Sumario: |
The present document contents the design of thermal analysis and simulation by Ansys CFD (Computational Fluid Dynamics) of the thermal behavior of the 134a refrigerant in a condenser. These simulation systems make designs very similar to reality, without making constructions about error experimentation, obtaining good results subject to versatility of changes in redesigning systems. At area of methodology, the quantitative grasp offers a set of sequential and evidential steps; their started with definition of boundary conditions, to delimited the geometric design and evaluation of the thermal behavior of refrigerant 134a and its condenser, it is determined suitable models for each regime as: volume model Euler Euler, from which the Eurelian method is derived used for multiphase fluids, that solves a set of innumerable momentum and continuity equations for each phase, achieved through the coefficients of exchange of non-granular fluids (fluid fluid). In addition, the Lee´s tool was use in condensation models, which handles a transfer equation for each phase described. The results about four exposed cases were obtain with an ideal model compared with others; these presented a variation in pressure of 5 % due to system losses and speed increases of less than 40 %, also a condenser efficiency greater than 50% heat transfer and an effective phase change. |
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