The International Code for the Construction and Equipment of Ships carrying Dangerous Chemicals in Bulk. It includes an index of Dangerous Chemicals carried in bulk which is used when stowage planning these vessels. If a vessel was built after 01 July 1986 both the IBC code and the BCH code apply to the construction and equipment requirements.
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SHALLOW WATER EFFECTThe effect that due to the depth of water, the speed of the vessel and shape of the vessel's hull causes the vessel to sink deeper in the water especially in shallow water and at high speed. The vessel becomes sluggish in responding to the rudder. |
PNEUMATIC TEST
Pressure testing of a process vessel by the use of air pressure.
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PIEZOMETER
1. An instrument for measuring fluid pressure, such as a gage attached to a pipe containing a gas or liquid. 2. An instrument for measuring the compressibility of materials, such as a vessel that determines the change in volume of a substance in response to hydrostatic pressure.
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PERFORATED-PLATE EXTRACTOR
A liquid-liquid extraction vessel in which perforated plates are used to bring about contact between the two or more liquid phases.
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PACHUCA TANK
Air-agitated, solidliquid mixing vessel in which the air is injected into the bottom of a center draft tube; air and solids rise through the tube, with solids exiting the top of the tube and falling through the bulk of the liquid.
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NORMAL OPERATION
[MECHENG] The operation of a boiler or pressure vessel at or below the conditions of coincident pressure and temperature for which the vessel has been designed.
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MOVING-BED CATALYTIC CRACKING
[CHEMENG] Petroleum refining process for cracking (breaking) of long hydrocarbon molecules by use of heat, pressure, and a granular cracking catalyst that is continuously cycled between the reactor vessel and the catalyst regenerator.
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MOVINGBED
[CHEMENG] Granulatedsolidsina process vessel that are circulated (moved) either mechanically or by gravity flow; used in catalytic and absorption processes.
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LONGITUDINAL BAFFLE
Baffle sheets or plates within a process vessel (such as a heat exchanger) that are parallel to the long dimension of the vessel; used to direct fluid flow in the desired flow pattern.
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LAUNCHING CRADLE
A framework made of wood to support a vessel during launching from sliding ways.
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