Unsteady natural convection cooling of a water storage tank with an internal gas flue
Visualitza/Obre
Cita com:
hdl:2117/6374
Tipus de documentArticle
Data publicació2010-01-01
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
The cooling process by natural convection in cylindrical cavities is a phenomenon which takes place in several applications such as solar energy systems. In the present work a storage tank with an internal gas flue is studied experimentally and numerically during its long-term cooling process. The computational domain includes two fluids, i.e. water in the store and air in the chimney, and two external and internal
layers of steel separated by polyurethane insulation material. In this paper, the numerical and the experimental analysis of the temperature field inside the tank submitted to an external convection
cooling process with a constant convection heat transfer coefficient is presented. The air and the water temperature profiles along the vertical lines are obtained experimentally and numerically, for a cooling
period of 90 h. The numerical analysis is carried out using a specific CFD code developed for the present work; an axisymmetric domain has been considered. Finally, a detailed description of the phenomena that occur inside the water part of the domain during the cooling process is also provided.
Descripció
This is the author’s version of a work accepted for publication
by Elsevier. Changes resulting from the publishing process, including
peer review, editing, corrections, structural formatting and other quality
control mechanisms, may not be reflected in this document. Changes
may have been made to this work since it was submitted for publication.
A definitive version was subsequently published in International Journal of Thermal Sciences,
[VOL. 48, ISSUE 4], 2009, doi:10.1016/j.ijthermalsci.2008.06.002
CitacióHmouda, I. [et al.]. Unsteady natural convection cooling of a water storage tank with an internal gas flue. "International journal of thermal sciences", 01 Gener 2010, vol. 49, núm. 1, p. 36-47.
ISSN1290-0729
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
THESCI 3016-main1.pdf | Article | 1,744Mb | Visualitza/Obre |