Compressors in which successive volumes of air or gas are confined within a closed space, and compressed. They may be either reciprocating or rotating. (Trap air and then squeeze it to the desired pressure).

is the energy a substance possesses because of its elevation above the earth (or above some other chosen datum plane). .

PSI - Pounds per square inch.

Is the temperature at which oil begins to flow under prescribed conditions.

Heavy-weather practice of pouring oil on the sea so as to form a film on the surface, thus preventing the seas from breaking. To smooth out some difficulty.

The mechanical power required to compress polytropically and to deliver, through the specified range of pressures, the gas delivered by the compressor.

A built in mechanical device to recover a portion of the power consumed by a constant speed centrifugal compressor when operating at reduced capacity or reduced pressure rise, or both.

A measurement. Parts per billion

A measurement. Parts per million

A flat bottomed, blunt nosed dinghy (or small boat).

Certificate given to a ship arriving from a foreign port, by the port's health officer, indicating that there are no cases of disease aboard the ship and the health of all on board is good.

A permit by the port doctor for an incoming vessel, being clear of contagious disease, to have the liberty of the port.

Lifts temporary quarantine of a vessel; granted pratique by Health Officer.

An audible or visual discharge at a pressure slightly lower than the set pressure on a valve. Warns the operator that the valve is about to open.

A process employed in the shipment of citrus fruits and other perishable commodities. The fruit is packed and placed in a cold room from which the heat is gradually extracted. The boxes of fruit are packed in containers that have been thoroughly cooled an ...

Introduction to a Charter Party

Pre-Cooling of intake air for compressors and Blowers.

Is a heat exchanger located immediately preceding an ejector to condense and remove a portion of the vapor in the mixture and thus reduce the total lb/hr to be handled.

Also known as a junction buoy. A red and green horizontally striped buoy used in the United States to mark the separation of a channel into two channels. The preferred channel is indicated by the color of the uppermost stripe. Red on top indicates that th ...

Freight charges paid by the consignor (shipper) prior to the release of the bills of lading by the carrier.