This work analyses and compares two approaches to evaluate the boiling heat transfer of CO2 in a real evaporation process: classical empirical correlations and flow pattern maps. We develop a finite-volume mathematical ...
[EN] Increased interest in the environmental impact of refrigeration technology is leading toward design solutions aimed at improving the energy efficiency and use of eco-friendly refrigerants with low GWP. The aim of this ...
Unlike other refrigerants, R744 (or carbon dioxide) has a very low critical temperature (30.98 C) which
hampers working in subcritical conditions especially when the environment is used as a heat rejection
sink. ...
Díaz Quezada, Hendry Mariano(Universitat Politècnica de València, 2021-01-11)
[ES] Este trabajo final de grado consiste en la realización de un proyecto de una instalación frigorífica utilizando como refrigerante el CO2, también denominado el gas refrigerante R744.
Se ha utilizado este tipo de ...