Published 8 issues per year
ISSN Print: 1065-5131
ISSN Online: 1563-5074
Indexed in
Study of a Drainage Disk Thermosyphon Condenser Design
ABSTRACT
A unique thermosyphon condenser design is presented that utilizes drainage disks in the condenser to reduce the liquid film thickness and consequently improve the condensation heat transfer coefficient. The condensation heat transfer improvement was analyzed using Nusselt's film condensation theory. In addition, the effects of the drainage disk on flooding limit were analyzed using the liquid flow force balance theory. It was shown that by placing one drainage disk at the middle of the condenser, the overall condensation heat transfer coefficient could be reduced by nearly 20%. However, the flooding limit may be adversely affected by the drainage disk. The theoretical models were verified by comparisons with previous models and experiments. The innovation provides an effective and low cost solution to large condensation ΔT problems in many thermosyphon applications.
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Goldstein R.J., Eckert E.R.G., Ibele W.E., Patankar S.V., Simon T.W., Kuehn T.H., Strykowski P.J., Tamma K.K., Bar-Cohen A., Heberlein J.V.R., Davidson J.H., Bischof J., Kulacki F.A., Kortshagen U., Garrick S., Heat transfer – a review of 2000 literature, International Journal of Heat and Mass Transfer, 45, 14, 2002. Crossref