05-10-2012, 05:06 PM
Compressed Air System
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Piping includes pipe, flanges, fittings, bolting, gaskets, valves, and the pressure-containing portions of other piping components. It also includes pipe hangers and supports and other-items necessary to prevent over pressurization and overstressing of the pressure-containing components. It is evident that pipe is one element or a part of piping. Therefore, pipe sections when joined with fittings, valves, and other mechanical equipment and properly supported by hangers and supports, are called piping. Fig 1 shows a typical piping system
Hydrogen is often produced on-site in electrolyzers, as this reduces the need for stored amount of compressed hydrogen and allows storage in lower pressure tanks, with associated safety benefits and lower costs. Some gaseous hydrogen has to be kept for refilling the generator but it can be also generated on-site.
8.7.1 Applications. The major uses of compressed air for power plants are for plant service which includes boiler fuel oil atomizing, soot blowing, and instrument air supply.
The use of compressed air for fuel oil atomizing should be economically evaluated versus steam or mechanical atomization. The use of compressed air versus steam blowing for soot blowers should also be economically evaluated.
Equipment Description, Design, and Arrangement. For description of types,
design requirements, and arrangement of air compressors, aftercoolers, receivers, and
air dryers, see MIL-HDBK-1003/6 and NAVFAC DM-3.05, Compressed Air and Vacuum Systems.