downcomer


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downcomer

[′dau̇n‚kəm·ər]
(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
A vertical pipe, often of sheet metal,
References in periodicals archive ?
We saw milli-amps of current flowing up and down the downcomer," said Brehm.
The thick line is the response of the model with four holdup terms which includes the vapour holdup while the thin line is the response of a model with two holdups, but that includes the holdup of the liquid in the downcomer.
BULLETIN BOARD: RGID) , reported today that on Saturday, June 21, 2003, its 'C' blast furnace auxiliary equipment, including the dust catcher and downcomer, sustained significant structural damage, resulting in the furnace's temporary shutdown.
Of Wall Superheater Tubes, Ceiling Transfer Tubes And Downcomer Tubes In Hp Boiler
Blended mixture then flows as a plug through a weighed downcomer directly above extruder throat, eliminating any chance of demixing.
This is because, Van de Sande and Smith (1973) used only plunging jet without any downcomer but in the present system, a minimum height of gas-liquid mixture is always maintained in the downcomer, which has a negative effect on air entrainment.
Tenders are invited for Providing Downcomer And Fire Fighting Pump Sets Including Repairing Of Existing Downcomer System In The Income Tax Office Building, Sector 2, Panchkula, Haryana
All airlift reactors (ALRs) consist of a gas sparged riser and a downcomer which is usually not sparged.
Tenders are invited for Renovation Of Existing Auditorium In Imu Old Campus Chennai Sh Providing Iei Fittings Afas And Downcomer
20 m), 2 m in height, divided into a riser and a downcomer section by a 1.
Homebuyers who already receive a copy of the Gardening for Wildlife booklet when they move into their new home, can now have one waterbutt fitted per property and the site manager on the developments concerned will arrange to fit the container to the downcomer on the appropriate house.
Tenders are invited for Moei And Fans I/C Compound Light, P/Sets, Lifts And Downcomer Pa, Fa System And Fire Fighting At Pv Hostel New Delhi.