Numerical Analysis Of Flow Pattern Map Of R600a In a Collector/evaporator Of a Solar-assisted Heat Pump. Análisis Numérico De los Mapas de Patrones de Flujo del Refrigerante R600a en un Colector/evaporador de una Bomba de Calor Asistida por Energía Solar

Translated title of the contribution: Numerical Analysis of Flow Pattern Map of R600A IN A Collector / Evaporator of A Solar-Assisted Heat Pump. Numeric analysis of refrigerant flow pattern maps R600A in a collector / evaporator of a solar energy-assisted heat pump

William Giovanny Quitiaquez Sarzosa, Eduardo Enrique Cortez Caicedo, Karen Michelle Anchapaxi Caiza, César Isaza, Rene Patricio Quitiaquez Sarsoza, Luis Fernando Toapanta Ramos

Research output: Contribution to journalArticle

Abstract

This research work presents a detailed description of the flow patterns maps generated in a horizontal pipe of the collector/evaporator of a direct-expansion solar-assisted heat pump, using R600a refrigerant as working fluid. The study was performed in a pipe with an internal diameter of 3.8 mm and a length of 1000 mm, mass velocities varying between 197.59 and 267.26 kg·m-2·s-1 and heat flux between 72.83 and 488.27 W·m-2; during the experimental tests, an incident solar radiation between 0 and 652.9 W·m-2 was present. The Wojtan, Ursenbacher and Thome correlation was considered for the analysis and the model used does not require iterative calculations; moreover, it carries out a detailed analysis of the different zones present along the pipe. The predominant zones in this study are intermittent, annular and dryout, found in the five tests, however, due to the working conditions in all tests with the exception of test A, mist and stratified-wavy flow were found.
Translated title of the contributionNumerical Analysis of Flow Pattern Map of R600A IN A Collector / Evaporator of A Solar-Assisted Heat Pump. Numeric analysis of refrigerant flow pattern maps R600A in a collector / evaporator of a solar energy-assisted heat pump
Original languageSpanish (Ecuador)
Pages (from-to)112-222
JournalIngenius: Revista De Ciencia Y Tecnología
Volume26
Issue number2021
DOIs
StatePublished - 29 Jun 2021

Keywords

  • Flujo bifásico
  • Patrones de flujo
  • R600a
  • Transferencia de calor

Fingerprint

Dive into the research topics of 'Numerical Analysis of Flow Pattern Map of R600A IN A Collector / Evaporator of A Solar-Assisted Heat Pump. Numeric analysis of refrigerant flow pattern maps R600A in a collector / evaporator of a solar energy-assisted heat pump'. Together they form a unique fingerprint.

Cite this