Effect of mean void fraction correlations on a shell-and-tube evaporator dynamic model performance

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comunitat-uji-handle:10234/9

comunitat-uji-handle2:10234/7035

comunitat-uji-handle3:10234/8617

comunitat-uji-handle4:

INVESTIGACION

Metadata

Title
Effect of mean void fraction correlations on a shell-and-tube evaporator dynamic model performance
Author (s)
 Navarro-Esbrí, Joaquín;
 Milián, Víctor;
 Mota-Babiloni, AdriánOrcidScopusResearcherIDResearchGate;
 Molés, Francisco;
 Verdú, Gumersindo
Date
2015-08-22
Publisher
Taylor and Francis
URI
http://hdl.handle.net/10234/193655
DOI
https://doi.org/10.1080/23744731.2015.1034594
ISSN
2374-4731; 2374-474X
Bibliographic citation
Joaquín Navarro Esbrí, Víctor Milián, Adrián Mota-Babiloni, Francisco Molés & Gumersindo Verdú (2015) Effect of mean void fraction correlations on a shell-and-tube evaporator dynamic model performance, Science and Technology for the Built Environment, 21:7, 1059-1072, DOI: 10.1080/23744731.2015.1034594
Type
info:eu-repo/semantics/article
Publisher version
http://tandfonline.com/action/journalInformation?show=aimsScope&journalCode=uhvc
Version
info:eu-repo/semantics/acceptedVersion
Subject
Abstract
In this article, the influence of different mean void fraction correlations on a shell-and-tube evaporator dynamic model performance has been evaluated. The model proposed is based on the moving-boundary approach and ... [+]
In this article, the influence of different mean void fraction correlations on a shell-and-tube evaporator dynamic model performance has been evaluated. The model proposed is based on the moving-boundary approach and includes expansion valve modeling. Several transient tests, using R134a as working fluid, have been carried out varying refrigerant mass flow, inlet enthalpy, and secondary fluid flow. Then model performance, using different mean void fractions, is analyzed from the system model outputs (evaporating pressure, refrigerant outlet temperature, and condensing water outlet temperature). The slip ratio expressions selected are a homogenous and momentum flux model and Zivi, Chisholm, and Smith correlations. The results of the comparison between experimental and model predictions depend on the transient characteristics, and there is not a single slip ratio correlation that provides the best performance in all the cases analyzed [-]
Is part of
Science and Technology for the Built Environment (2015) 21, 1059–1072
Related data
https://www.tandfonline.com/doi/figure/10.1080/23744731.2015.1034594?scroll=top&needAccess=true
Rights
Copyright © 2015 ASHRAE
info:eu-repo/semantics/openAccess
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Copyright © 2015 ASHRAE
Except where otherwise noted, this item's license is described as Copyright © 2015 ASHRAE