water column


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water column

[′wȯd·ər ‚käl·əm]
(mechanical engineering)
A tubular column located at the steam and water space of a boiler to which protective devices such as gage cocks, water gage, and level alarms are attached.
References in periodicals archive ?
According to the clause, 'Natural gas shall be supplied at a pressure not exceeding 8 inches of water column above atmospheric pressure.
The turbine damping parameter will be modelled by an orifice above the water column. To simplify the model, the air is assumed to be incompressible.
Speaking about his motivation for designing the device, Ajami said: "This device was designed to respond to the lack of a similar domestically-manufactured sample in the country for injection of foam into oil and gas wells; the use of foam is one of the low-cost and high-efficiency methods for restoring wells that form water columns that hinder production."
The floats collected a combined 556 full water column profiles, including data received from two floats when they surfaced in a flaw lead near Point Barrow in April 2017.
Major Element Concentrations in Hydrothermal Plume Water Columns. The higher velocity (0.820 m/s) of the hydrothermal plume water column is found in the Yonaguni Knoll IV hydrothermal field (Figure 2(a)), with the lowest salinity (34.2), pH (7.53, 25[degrees]C), [B.sup.3+] (0.330 mmol/kg), [Mg.sup.2+] (50.9 mmol/kg), total S (26.9 mmol/kg), [K.sup.+] (9.70 mmol/kg), [Ca.sup.2+] (9.02 mmol/kg), [Sr.sup.2+] (73.2 [micro]mol/kg), [Cl.sup.-] (547 mmol/ kg), and S[O.sub.4.sup.2-] (26.1 mmol/kg) values in the Iheya North knoll and Clam hydrothermal field (Table 1).
Studies performed by Chamberlin & Mitchell (15) produced convincing evidence that coliform decay rates vary with the light intensity in the free surface and other factors that affect its penetration in the water column.
Aside from fishery research, he said other countries like China can also conduct surveys on water salinity and water currents because the water column in the ECS also belongs to mankind.
"Surface waters are warming, which impacts the sound speed profile of the water column," she says.
"People and their pets should avoid areas where the water is foamy, scummy, thick-like paint, pea-green, blue-green or brownish red in color, if a thick mat of blue-green algae is visible in the water, or bright green cells are suspended in the water column," the state said.
Top presentations vary during winter and it's important to cover the top, middle, and bottom of the water column. Glidebaits such as the Pearson Suicide Sucker, Drifter Hellhound, and Monster Squirko are good options for fishing high in the water column for aggressive muskies.
Water units often use a scaffold or lift truck to give enough head pressure to the water column.