Initial Work

If the system differential pressure requirements are low, sometimes a fan can be used. A fan is limited to a maximum of about 65 inches of water (just over 2psi) in vacuum service or 77 inches of water in pressure service (just under 3psi). To estimate fan horsepower use the equations found in Chapter 6 in the section entitled Horsepower Calculation. In lieu of manufacturer s data use an adiabatic efficiency of 50% for initial work. [Pg.204]

The interesting fact is that the two men just mentioned were initially working independently of each other. The initial analysis used infinitely stiff bearings and, while the method improved the results, it did not match the compressor critical speed test results consistently. Later work recognized the existence of a bearing oil film with elastic and damping properties. [Pg.385]

The initial work was carried out using a silica column 25 cm long and 9 mm I.D. packed with Partisil 10 silica (actual mean particle diameter 8.5 pm) thermostatted at... [Pg.317]

SETAC, the Society for Eco-toxicology and Chemistry, has a special theme on LCA and has initiated working groups and conferences and produced several reports and guidelines on LCA methodology. Information on SETAC s activities can be found at www.setac.org. [Pg.1367]

It follows therefore that the idea of calling documents procedures when they only apply to interdepartmental activities and calling documents work instructions when they apply to departmental activities is ill-conceived. Both types of documents are in fact procedures. In both cases work instructions may be needed to initiate work and procedures may be needed to define the sequence in which the work is to be executed, where the instructions alone are insufficient. [Pg.177]

Several colloidal systems, that are of practical importance, contain spherically symmetric particles the size of which changes continuously. Polydisperse fluid mixtures can be described by a continuous probability density of one or more particle attributes, such as particle size. Thus, they may be viewed as containing an infinite number of components. It has been several decades since the introduction of polydispersity as a model for molecular mixtures [73], but only recently has it received widespread attention [74-82]. Initially, work was concentrated on nearly monodisperse mixtures and the polydispersity was accounted for by the construction of perturbation expansions with a pure, monodispersive, component as the reference fluid [77,80]. Subsequently, Kofke and Glandt [79] have obtained the equation of state using a theory based on the distinction of particular species in a polydispersive mixture, not by their intermolecular potentials but by a specific form of the distribution of their chemical potentials. Quite recently, Lado [81,82] has generalized the usual OZ equation to the case of a polydispersive mixture. Recently, the latter theory has been also extended to the case of polydisperse quenched-annealed mixtures [83,84]. As this approach has not been reviewed previously, we shall consider it in some detail. [Pg.154]

Trifluoromethylation is the most important perfluoroalkylation reaction. The initial work was earned out with trifluoromethyl iodide and copper metal in the... [Pg.700]

In order for such an extensive project to remain manageable, certain requirements were necessary. Initially the data were confined to TPs, TSs, TPEs, and casting plastics. To be included in this group were the TSEs, reinforced plastics, foams, semifinished products, and others. Polymat completed its initial work in 1989. New plastics products on the market and updated additional information on existing products are continually added. Data no longer available are still accessible to the user in a memory file. [Pg.414]

Molecular weight of pure Pu compound, initial work. 7, 10-13... [Pg.465]

The first unequivocal proof of feasibility of homogeneous polymerization free of termination and chain-transfer was reported in 1956, and the concept of living polymers and its ramifications were fully developed in those publications 2). Although the initial work dealt with anionic polymerization of styrene and the dienes, the underlying ideas were soon applied by other workers to a great variety of polymeric systems, as shown by the brief review of some of those developed recently. [Pg.89]

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