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.

A specimen that is notched and subjected to alternating stresses until a crack has developed at the root of the notch.

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 ...

A solar heating system that preheats water or air that is then heated more by another heating appliance.

National Preparedness for Response Exercise Program.

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

Pressure

The amount of money required to secure a specified cash flow at a future date at a specified return.

Force per unit area, usually expressed in pounds per square inch (PSI) or BAR.

The total pressure measured from absolute zero ( i.e., from an absolute vacuum).

An aneroid barometer with a scale graduated in altitude instead of pressure units.

The pressure encountered on the return side of a system.

The pressure at which a pressure operated valve begins to pass a gas.

Is the saturation pressure at the critical temperature.

Is the temperature at which moisture begins to condense in a compressed air system.

Is the total gas pressure (static plus velocity) at the discharge port of the compressor. Velocity pressure is considered only with dynamic compressors.

The loss in static pressure of a fluid (liquid or gas) in a system due to friction from obstructions in pipes, from valves, fittings, regulators, burners, etc, or by a breech or rupture of the system. Pressurization Testing

Resistance to flow. Defined as the difference in pressure upstream and downstream.

A device that indicates pressure differential above or below atmospheric pressure.