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Reverse Osmosis. This was the first membrane-based separation process to be commercialized on a significant scale. The breakthrough discovery that made reverse osmosis (qv) possible was the development of the Loeb-Sourirajan asymmetric cellulose acetate membrane. This membrane made desalination by reverse osmosis practical within a few years commercial plants were installed. The total worldwide market for reverse osmosis membrane modules is about 200 million /yr, spHt approximately between 25% hoUow-ftber and 75% spiral-wound modules. The general trend of the industry is toward spiral-wound modules for this appHcation, and the market share of the hoUow-ftber products is gradually falling (72). [Pg.80]

Each unit cost contains all the costs involved in the installation of that unit. For motors installed costs include the starter, conduit, wire, and a proportionate share of the service panelboard and busbars. The motor cost is not included since this will be part of the equipment cost. In the case of lighting, the installed cost includes the lighting fixtures, the conduit and wire, and a proportional share of the hghting panelboard and service switching costs. [Pg.872]

Shared transfer Avoid the use of incompatible materials in systems. shared transfer systems Ensure cleaning procedures are followed Avoid pockets in lines Install dedicated transfer system API RP 750 Kletz 1991 Lees 1996 NFPA-91... [Pg.30]

Captive (emergency) power generation covers the application of a diesel generating set, its starting, protection, synchronizing and load sharing. This forms an important part of power distribution at any installation to provide a standby source of supply,... [Pg.989]

Load sharing or selective load shedding is of interest to many users of hot gas expanders. A particularly successful European FCC application is illustrated in Figure 6-43. The addition of an expander-generator set to the FCC unit at a major refinery presented a challenge because a trip of the expander could upset the process. The company that is the subject of this application case study, GHH Borsig, solved this problem with the installation of a computerized control system and through computer simulation of trips. [Pg.380]

Like Bruce, I am here to share the perspective of the field. Shortcut equipment design methods play a major role in process equipment installations. Virtually all process designs employ these methods and shortcut techniques are developed from many sources. [Pg.399]

In addition, establish lines of communication for sharing information pertaining to equipment in need of repair or replacement, plans to remodel, renovate, or redecorate, new uses of building space or increases in occupant population, installation of new equipment. [Pg.207]

PSM must be a cooperative effort to succeed. Be sure to share your observations with local staff responsible for PSM installation. In addition, look for legitimate opportunities to flag superior performance (effort and results) in your regular reporting about facilities progress. [Pg.180]

Exhibit 5-2 shows three sample project installation strategies. Each example shows one possible implementation strategy. Variations on these will almost certainly be required to meet local circumstances. Example 1 envisages shared responsibility for the project with local staff. Example 2 shows local staff taking the lead and Example 3 shows minimal involvement of local staff. Other combinations of responsibilities and the use of other resources are also possible. Constant in all the examples is the development of management processes ahead of programs and elements, and the provision of local training before installation starts. [Pg.97]

Water Heater Installed Cost Energy Factor Annual Energy Cost Life/ Reliabilty Market Share 1995 Best Application... [Pg.1214]

Sharp and Dohme, RS/1 is used at several different laboratories in the U.S., Canada, the U.K. and continental Europe to share data. A large VAX installation supports users in different sites through a computer network. Collaborative projects between different laboratories, using data shared through the central system, have become common. [Pg.29]

LES/FDF-approach. An In situ Adaptive Tabulation (ISAT) technique (due to Pope) was used to greatly reduce (by a factor of 5) the CPU time needed to solve the set of stiff differential equations describing the fast LDPE kinetics. Fig. 17 shows some of the results of interest the occurrence of hot spots in the tubular LDPE reactor provided with some feed pipe through which the initiator (peroxide) is supplied. The 2004-simulations were carried out on 34 CPU s (3 GHz) with 34 GB shared memory, but still required 34 h per macroflow time scale they served as a demo of the method. The 2006-simulations then demonstrated the impact of installing mixing promoters and of varying the inlet temperature of the initiator added. [Pg.215]

With a share of 60%-80%, hydrogen production dominates total supply costs. The installation of refuelling stations makes up about 10%. The rest is for transport (including liquefaction). [Pg.448]

The project manager should coordinate the acceptance test with installation contractors and appropriate facility personnel. The project manager should develop the testing protocol and the expected results. A review of the testing protocol and requirements should be shared with the groups involved in the testing. [Pg.331]


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See also in sourсe #XX -- [ Pg.308 , Pg.323 ]




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