Design data

7 Design Data. Following is a summary of the design data  

500 Ib/min, X in. Water, 110 bp total Moderate-to-strong dust devils Moderate-to-stromg, SW and HE prevailing 2 1 

In reference to the remarks made earher, the following data, required for the examination of the suitability and design of the LRVPs, are necessary  

The most exact material compositions possible are crucial here, since the operating behaviour depends essentially on the material properties of both phases. 

Degree of Saccharification PerHentation Tine HELD C0NST8HT DT 40.00 AMMloglucusidase Level HELD CONSTANT AT. 1800 Total Carbohydrate HELD CONSTANT AT 17.59 

Degree of Saccharification HELD CONSTANT AT 70.00 Anyloglucosidase Level HELD CONSTANT AT, 1800 Tenperature HELD CONSTANT AT 36.00 

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The maximum temperature cross which can be tolerated is normally set by rules of thumb, e.g., FrSQ,75 °. It is important to ensure that Ft > 0.75, since any violation of the simplifying assumptions used in the approach tends to have a particularly significant effect in areas of the Ft chart where slopes are particularly steep. Any uncertainties or inaccuracies in design data also have a more significant effect when slopes are steep. Consequently, to be confident in a design, those parts of the Ft chart where slopes are steep should be avoided, irrespective of Ft 0.75. 

Mechanical Design Data, Teflon Fluorocarbon Kesins, bulletin, E.I. du Pont de Nemours Co., Inc. Wilmington, Del. Sept. 1964. 

R. D. McCarty,. Hord, H. M. Roder, S elected Properties of Hydrogen (Engineering Design Data). U.S. Dept, of Commerce, National Bureau of Standards, Washington, D.C., 1981, pp. 6—291. 

Plaspec Material Selection Database Data Resources, Inc. Dialog, STN detailed engineering and design data, chemical descriptions, and trade names for over 11,500 grades of plastics materials... 

Table 3. Design Data for Model BWR/6, General Electric Co. ...

D. P. Danner and T. E. Daubert, Manualfor Prediction Chemical Process Design Data, AIChE, New York, (extant 1987). 

At high temperature, the behavior is different. A stmcture designed according to the principles employed for room temperature service continues to deform with time after load apphcation, even though the design data may have been based on tension tests at the temperature of interest. This deformation with time is called creep because the design stresses at which it was first recognized occurred at a relatively low rate. 

Design data are available for the specific organics on the EPA s priority pollutant Hst. For mixed wastewaters, a laboratory study is necessary to determine adsorption characteristics. Wastewater is contacted with a range of concentrations of powdered carbon and adsorption occurs, as graphed ia the form of a Freundhch Isotherm, shown ia Figure 19. 

Table 4. Conceptual Design Data For a 5 Million SWU/yr Plant...

Costs are estimated for 1992 and do not involve special materials or special cell design. Data were developed by the factor method (41) and do not purport to be any particular process. Equivalent weight of the reactant is 50, and 100% current efficiency is assumed. 

Manualfor Predicting Chemical Process Design Data, Design Institute for Physical Property Data (DIPPR), AIChE, 1983 (updated in 1986). 

P. A. Gupte, M. Nagvekar, R. P. Danner, and T. E. Daubert, Documentation of the Basis for Selection of the Contents of Chapters Phase Equilibrium in Manualfor Predicting Chemical Process Design Data, Design Institute for Physical Property Data (AIChE), (1987). 

When experiments are carried out to select a suitable dryer and to obtain design data, the effect of changes in various extern variables is studied. These experiments should be conducted in an experimental unit that simulates the large-scale diyer from both the thermal and the material-handling aspects, and only material which is truly representative of full-scale production should be used. 

Tests on plant-scale dryers are usually carried out to obtain design data for a specific material, to select a suitable diyer type, or to check present performance of an existing diyer with the objective of determining its capacity potential. In these tests overall performance data are obtained and the results used to make heat and material balances and to estimate overall drying rates or heat-transfer coefficients. 

Design data for separation of the particular or similar mixture in a packea column are not available. Design procedures are better estabhshed for tray-type columns than for packed columns. This is particularly so with respect to separation efficiency since tray efficiency can be estimated more accurately than packed height equivalent to a theoretical stage (HETP). 

There are a number of different types of experimental laboratory units that could be used to develop design data for chemically reacting systems. Charpentier [ACS Symp. Sen, 72, 223-261 (1978)] has summarized the state of the art with respect to methods of scaUng up lab-oratoiy data and tabulated typical values of the mass-transfer coefficients, interfacial areas, and contact times to be found in various commercial gas absorbers as well as in currently available laboratoiy units. 

Rase Case Studies and Design Data, vol. 2 of Chemical Reactor Design for Process Plants, Wiley 1977) has these items ... 

The lest results so obtained will be subject to a tolerance as noted in Table 11.9, compared to data provided by the manufacturer based on their design data. 

Type tests These are conducted on a finished voltage or current transformer, one of each design and type, to verify their compliance with the design data and relevant Standards. 

Design data Available Available Some available Some available... 

Figure 8, from Design Data for Thermosiphon Reboilers, by D. C. Lee, J. W. Dorsey, G. Z. Moore F. Drew Mayfield, Chemical Engineering Progress, Vol. 52, No. 4, pp. 160-164 (1956). Reproduced by permission of the American Institute of Chemical Engineers. 1956 AIChE. ... 

Design of inorganic absorbers quite often involves a system whose major parameters are well defined such as system film control, mass transfer coefficient equations, etc. Ludwig gives design data for certain well-known systems sueh as NH3-Air-H20, CI2-H2O, COi in alkaline solutions, etc. Likewise, data for commercially available packings is well documented such as packing factors, HETP, HTU, etc. 

If it is assumed that explosible dust will be present above the MEC, and equipment design data are not required, explosibility testing forP g, and Kg usually has no direct application. However, minimum ignition energy (MIE) testing should be considered to help determine the likelihood of ignition. Since MIE is extremely sensitive to particle size it is especially important to test a sample that is sufficiently fine to represent the worst credible case. 

The Design Protocol must contain three different data sources which, for convenience, will be termed the Design Data Bases. The first data base will contain the exigencies of the analyst and will be given the title Performance Criteria. The performance criteria must contain explicit statements, given, wherever possible, in numerical terms that define the quality of the separation that is required in order to achieve an accurate analysis. 

As the flow rate and quantity of liquor are the most important controllable variables in developing design data, a feed pump suitable for accurate and continuous flow is required. Depending on the size of the pilot column system, the use of peristaltic, diaphragm, piston-type or centrifugal pumps are recommended. The feed pump should be used in combination with a volumetric or gravimetric flow control... 

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