Show simple item record

contributor authorG. S. H. Lock
contributor authorJ. D. Kirchner
date accessioned2017-05-08T23:30:41Z
date available2017-05-08T23:30:41Z
date copyrightNovember, 1989
date issued1989
identifier issn0892-7219
identifier otherJMOEEX-28061#337_1.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/105790
description abstractThe paper reports an experimental investigation of heat transfer in the closed-tube aerosyphon (aerated-thermosyphon) for a range of conditions representative of northern field applications. In particular, attention is focused on the effect of using tubes with heated lengths not only greater than the cooled lengths, but very much greater than the tube diameter. Using three heated sections and one cooled section, the geometry of the device has been varied systematically with 10 < L H /d < 50 and 1 < L H /L C < 20. For any given geometry, the effect of air bubbling rate has been studied in the range of 0 < V̇ < 5 × 10−5 m3 /S. Using these ranges it has been possible to make comparisons with other thermosyphon and aerosyphon data. The results indicate that heat transfer coefficients are reduced by increasing either length-diameter ratio or heated-cooled length ratio. They also reveal that, in general terms, the aerosyphon is almost an order-of-magnitude more effective than the single-phase thermosyphon. Some obervations on the flow regimes are offered, and an empirical correlation is presented.
publisherThe American Society of Mechanical Engineers (ASME)
titlePerformance of a Closed-Tube Aerosyphon With Large Length-Diameter Ratios
typeJournal Paper
journal volume111
journal issue4
journal titleJournal of Offshore Mechanics and Arctic Engineering
identifier doi10.1115/1.3257104
journal fristpage337
journal lastpage343
identifier eissn1528-896X
keywordsFlow (Dynamics)
keywordsHeat transfer
keywordsGeometry AND Heat transfer coefficients
treeJournal of Offshore Mechanics and Arctic Engineering:;1989:;volume( 111 ):;issue: 004
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record