Semi-Analytical Model for Heat and Mass Transfer Evaluation of Vapor Bubbling

Giuseppe Starace, Lorenzo Carrieri and Gianpiero Colangelo
Additional contact information
Giuseppe Starace: Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy
Lorenzo Carrieri: Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy
Gianpiero Colangelo: Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy

Energies, 2020, vol. 13, issue 5, 1-17

Abstract: Multi-stage refrigeration systems cover a wide range of possibilities and are diffusing more and more. The idea that inspired this work derived from the need to have a tool to model the energy behavior of the intercooler inside a multi-stage refrigeration system. In this work, a semi-analytical model of a single bubble, injected into the liquid of an intercooler of a multi-stage system, has been developed. The developed model is a set of equations derived from the Fourier equation for heat conduction in defined conditions and includes the effects of sensible and latent heat. The vapor bubble is supposed to be injected in the saturated liquid contained in a tank at a defined depth, at an intermediate pressure. The model has been implemented in Matlab and the results show the influence of the liquid surface tension, the injection depth and the thermal diffusivity of the vapor. The model developed here is a useful low-cost tool for evaluating heat transfer optimization of a separator/intercooler of a multi-stage refrigeration system.

Keywords: semi-analytical model; vapor; liquid; bubble; two-phase heat transfer (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/5/1104/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/5/1104/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:5:p:1104-:d:327292

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().