Predicting performance of reinforced circular spiral lockseam ducts under negative pressure

Gierzak J B
duct, pressure testing
Year:
2003
Bibliographic info:
Preprint ASHRAE Transactions vol.109 no.1 2003 (USA) - paper presented at the ASHRAE Winter Meeting, Chicago, January 2003 - 17 pages, 12 figs, 10 refs, 10 tabs

This paper presents the results of 23 experiments during which reinforced spiral ducts were submitted to underpressure until they collapse. Experiments were operated with different duct diameters, reinforcement spacing, material and duct thickness. Results were analyzed and led to an equation for estimating the collapse pressure of such ducts.

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