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Efficiencies modified machines

The efficiencies of the modified machines are 2%-4% higher than those achieved with comparable traditional machines. Higher efficiencies enhance the rate of condensate extraction. In a plant the size of Empress, this could result in 100,000 to 200,000 worth of additional production per year. [Pg.454]

Written with considerable input from industry, this NESHAP was based on two approaches. First was to change the engineering design of all solvent cleaning machines in which these six solvents were used to improve their containment efficiency to a common stan-dard . Second was to change the workplace methods hy how the modified machines were used. Considerable latitude was allowed by the EPA in meeting both goals of the NESHAP. [Pg.46]

Test bench methods for machines not too large for test cabins have been developed in order to obtain comparative results. In the case of particles, the tracer gas describes well the behavior of aerodynamic diameter particles less than 5 to 10 gm. For larger particles, correction factors should be used to modify the efficiency results obtained using the tracer gas technique. [Pg.1018]

For influence on a temperature range (its expansion or compression) and improvements of efficiency binary heat machines (on two hydrides) have been modified for operation in multistage modes (triple heat pumps). The choice of three of hydrides and an estimation of efficiency of thermodynamic cycles for such HHP can be determined, basing on the approaches developed in [13, 14]. [Pg.396]

When using noncresylic based wire enamels the old enameling machines must compensate for the energy deficit of the coatings. New enameling machines are thermodynamically more efficient, and have a modified design, per-... [Pg.62]

The requirements of efficiency and easy maintenance are basically contradictory as we noted at tbe very start of tbis work and, where tbis conflict becomes evident, the choice of functional clarity and structured programming techniques will always be preferred over numerical efficiency and computational speed. The basic philosophy will be to rely on hardware development for improved efficiency and present a reasonably clean implementation which itself can always be modified if increased performance is required if there is a choice it will always be to let the machine not the human researcher do the work. [Pg.69]

Rosin is a non-reaclive prodnct and is retained on the anionic fibre by either attaching itself to a cationic source in the case of rosin soap, or anionic rosin emulsion or by having a cationic surface charge. The main requirement is that it requires a source of aluminium species to form the actual sizing agent, aluminium rosinate. Rosin is normally modified with maleic anhydride or fumaric acid to increase its reactivity with aluminium species and improve its efficiency at higher pH. The method by which this aluminium species is formed and retained in the wet-end of the paper/ board machine differs between anionic and cationic rosin sizes. [Pg.74]

Owing to the results of this research project, belt manufacturers will have the necessary information to modify their products to achieve better efficiency in the grinding of ceramic materials. Machine tools manufacturers could use the data to adapt their machines to the specific conditions of high-efficiency grinding of hard and brittle materials. [Pg.192]

The foregoing sigma theory is derived on the assunq)tion of 100% collection of a particle of a critical diameter. It is common to find machines characterised on the basis of only 50% efficiency of collection, ie. 50% of particles captured within the machine and 50% allowed to enter the centrate.The sigma theory can be modified to take this into account as follows. [Pg.264]

The basic parts of the mold are illustrated in Fig. 5.69. The sprue receives the polymer melt from the nozzle and delivers it to the runners. The runners are as short as possible and provide minimum pressure and temperature drop from the sprue to the cavity. There are four basic types round, half round, trapezoid, and modified trapezoid. Round runners are the most efficient type, but are the most expensive because they must be machined into both plates of the mold. Since half-round runners produce the highest pressure drops and greatest cooling of the melt, they are seldom recommended. Trapezoidal runners are a compromise between round and half round, and modified trapezoidal runners merely have rounded bottoms. These runners are machined into only one mold plate, but reduce the pressure and temperature losses observed with half-round runners. Runner sizes are determined from the part-wall thickness. The diameter of the runner connecting directly to the cavity is typically equal to the part thickness, and each upstream branch is increased in diameter as " ... [Pg.415]

The runners are as short as possible and provide minimum pressure and temperature drop from the sprue to the cavity. There are four basic types round, half-round, trapezoid, and modified trapezoid. Round runners are the most efficient types but are the most expensive because they must be machined into both plates of the mold. Because half-round nmners produce the highest pressure drops and greatest cooling of the melt, they are seldom reconunended. Trapezoidal runners are a compromise between round and half-round, and modified trapezoidal runners... [Pg.491]

Insertion of assembly and intrinsic subprograms. Intrinsic subprograms are built-in to the compiler provided for convenient access to any machine operations that provide special capabilities or efficiency and that are not otherwise available through the language constructs. Examples of such instructions include atomic read-modify-write operations, standard numeric functions, string manipulation operations, vector operations, direct operations on I/O ports, etc. [Pg.189]


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See also in sourсe #XX -- [ Pg.454 ]




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Machine efficiency

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