Development of a computer application for the calculation of the thermodynamic properties of the ammonia-water mixture

The design and optimization of energy systems are very important today. Some of these systems use the ammonia-water mixture as working fluid, therefore, calculation of the thermodynamic properties becomes indispensable for its evaluation, design and optimization. In the present work an application h...

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Autores:
Tipo de recurso:
http://purl.org/coar/resource_type/c_6538
Fecha de publicación:
2017
Institución:
Universidad Pedagógica y Tecnológica de Colombia
Repositorio:
RiUPTC: Repositorio Institucional UPTC
Idioma:
spa
OAI Identifier:
oai:repositorio.uptc.edu.co:001/12284
Acceso en línea:
https://revistas.uptc.edu.co/index.php/ingenieria_sogamoso/article/view/7185
https://repositorio.uptc.edu.co/handle/001/12284
Palabra clave:
Ammonia-water mixture
thermodynamic properties
Gibb free energy
enthalpy
entropy
Mezcla amoniaco-agua
propiedades termodinámicas
energía libre de Gibbs de exceso
entalpía
entropía
Rights
License
Derechos de autor 2017 Ingeniería Investigación y Desarrollo
Description
Summary:The design and optimization of energy systems are very important today. Some of these systems use the ammonia-water mixture as working fluid, therefore, calculation of the thermodynamic properties becomes indispensable for its evaluation, design and optimization. In the present work an application has been developed in ExcelTM using Visual Basic (VBA) from a formulation based on free Gibbs Energy of Excess, in order to simulate different systems such as cooling, air conditioning, heat pumps, cogeneration and power cycles, without to acquire commercial simulators for this purpose. To validate this program, the results were compared with data obtained by the National Institute of Standards and Technology (NIST) software and experimental data reported in the literature.