Flow Maps in the Boiling Process in Domestic Refrigerators

Fernando Toapanta-Ramos, César Nieto-Londoño, Elizabeth Suquillo-Goméz, William Quitiaquez

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución de conferenciarevisión exhaustiva

Resumen

Forced flow convection boiling and flow patterns are analytically investigated in this study to determine the behaviour of R600a within domestic refrigeration systems when copper oxide nanoparticles are added or not to this refrigerant. The flow maps are analysed, for this, the mass flows and the heat flows are of great importance since according to the numerical value of each of these the region where the flow will be found during the boiling process is established. Flow maps are presented using established correlations for halogenated refrigerants or zeotropic mixtures in the forced convection boiling process. The results showed that the heat transfer coefficient increased in mass flow while it decreased with increasing quality. On the other hand, when metallic nanoparticles are used, the heat transfer increases while maintaining the mass flow. In the same way, R600a has greater heat transfer when adding nanoparticles and decreases when oil is added, this is noticeable in the interface between intermittent and annular flow. Therefore, adding nanoparticles makes nanorefrigerants more convective compared to base fluids. All this generates an improvement in domestic refrigeration, despite having a flammable refrigerant (R600a).

Idioma originalInglés
Título de la publicación alojadaCommunication, Smart Technologies and Innovation for Society - Proceedings of CITIS 2021
EditoresÁlvaro Rocha, Paulo Carlos López-López, Juan Pablo Salgado-Guerrero
EditorialSpringer Science and Business Media Deutschland GmbH
Páginas419-432
Número de páginas14
ISBN (versión impresa)9789811641251
DOI
EstadoPublicada - 2022
Evento7th International Conference on Science, Technology and Innovation for Society, CITIS 2021 - Virtual, Online
Duración: 26 may. 202128 may. 2021

Serie de la publicación

NombreSmart Innovation, Systems and Technologies
Volumen252
ISSN (versión impresa)2190-3018
ISSN (versión digital)2190-3026

Conferencia

Conferencia7th International Conference on Science, Technology and Innovation for Society, CITIS 2021
CiudadVirtual, Online
Período26/05/2128/05/21

Nota bibliográfica

Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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