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A Numerical Analysis of The Pool Boiling Process in Flooded Evaporators Using Different Refrigerants...

Publication Type
Conference Paper
Book Title
International Refrigeration and Air Conditioning Conference 2021
Publication Date
Conference Name
2020 Purdue conferences
Conference Location
West Lafayette, Indiana, United States of America
Conference Sponsor
DOE
Conference Date
-

The pool boiling process can be observed in several energy conversion processes including commercial and industrial refrigeration, industrial air-cooling operations, and power generation. The process becomes more involved when pool boiling in a tube bundle is considered. In the current study, a numerical model is developed to predict the key performance parameters of a flooded evaporator while considering a range of working fluids. A kettle reboiler configuration was considered, and a performance model was developed to account for boiling on individual tubes, merging of vapor bubbles, and movement under gravity. A volume of fluid (VOF) model was used to deal with the different phases in the simulation. Various fluids were considered in this study including HFE-7000, HFE-7300, and water. The trajectories of the bubbles were tracked, and the resulting information has been summarized in physical measurable quantities.