Anderson, T.N., Duke, M., Carson, J.K. (2010). Suppression of natural convection heat transfer coefficients in an attic shaped enclosure. International Communications in Heat and Mass Transfer, Available online 6 July 2010.
Abstract
The use of convection suppression devices has been widely discussed in the literature as a means of reducing natural convection heat loss from enclosed spaces. In this study the use of a single baffle was examined as a possible low cost means of suppressing heat loss by natural convection in an attic shaped enclosure.
Recently the authors experimentally demonstrated that the natural convection heat transfer for an attic shaped enclosure with Grashof Numbers in the range of 107 to 109 [1] could be predicted using a correlation in the literature developed for Grashof Numbers in the range 10⁵ and 10⁶ [2]. However, in this study the impact of adding a single baffle to the enclosure was examined. It was found that the heat transfer coefficient changes with increasing baffle length, and can be predicted using a modified form of the correlation presented in [1], as shown in Eq. Nu = 0.286A⁻⁰˙²⁸⁶Gr⁰˙²⁵(1-L/H) ⁰˙²
Rights
This is an author's accepted version of an article published in the journal: International Communications in Heat and Mass Transfer. © 2010 Elsevier Ltd.
