downcomer [′dau̇n‚kəm·ər]
A vertical pipe, often of sheet metal,
(building construction)
(chemical engineering)
A method of conveying liquid from one tray to the one below in a bubble-tray column.
(engineering)
In an air-pollution control system, a pipe that conducts gases downward to a device that removes undesirable substances.
(mechanical engineering)
A tube in a boiler waterwall system wherein the fluid flows downward.
downcomer
1. A downspout.
2. Any pipe in which the flow is substantially vertical.
downspout, conductor, downcomer, downpipe, leader, rain leader, rainwater pipe
downspout
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