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Consumption factors

The only other petrochemical feedstock of significant commercial use is methane (natural gas) which is used primarily to produce ammonia and methanol. Consumption factors are about 28 GJ and 31 GJ per metric ton, respectively (58,300 and 64,700 BTU/lb) (8). Approximately... [Pg.175]

Figure 6-26B. Steam consumption factor. By permission, Worthington Corp. Figure 6-26B. Steam consumption factor. By permission, Worthington Corp.
The life cycle approach for considering energy at the business strategy level can be applied to any product, provided that sufficient consideration is given to the contributing factors. The level of detail can be adjusted to allow for different levels of data availability or understanding, but it is important to assess the need for different energy consumption factors within the life cycle of the product. [Pg.17]

Table 3. Energy consumption factors considered for comparison between PSS and sale business strategies for steel roofing. Table 3. Energy consumption factors considered for comparison between PSS and sale business strategies for steel roofing.
The value of the conversion factor s is determined by the required efficiency of the conversion of component A. By substituting equations (5,6) into equation (4) we find for the ratio of the total ozone consumption to the amount of ozone needed for the oxidation of component A, defined as the Ozone consumption Factor (OF) ... [Pg.260]

Substitution of equation (12) and (15) into equation (8) yields the ozone consumption factor (OF) for the PFR ... [Pg.262]

All three terms which contribute to ozone losses are minimal in a PFR. The relative importance and the absolute values of these terms and the ozone consumption factor can be calculated from equations (7) and (16), provided the reaction rate constants and the reaction conditions are known. [Pg.265]

Raw material consumption factors for a typical production line are as follows (Ref 21), per unit of purified TNT produced ... [Pg.730]

Capacity consumption factor Raw material requirements Intermediates requirements Utility capacity requirements... [Pg.94]

Equation (3.24) requires that the production volume allocated to a plant does not exceed technical capacity of the plant. Capacity consumption factors are site-specific to account for productivity differences and time dependent to allow for discrete process improvement projects. A plant s technical capacity is calculated by multiplying the number of production lines installed with the capacity per line (3.25). It can be varied between a lower and an upper bound (3.26). Restriction (3.27) states that from each plant class only one plant can be open at a site. The rationale behind this restriction is that only one plant type (size and degree of automation combination) should be put in place at a given site and capacity can be adjusted via the number of production lines. It is not implied that all production lines necessarily have to be in one building. For sites with utility capacity restrictions, constraint (3.28) ensures the available capacity is not exceeded. [Pg.100]

Fixed costs are modeled in a similar fashion. For each plant class a default model containing plant fixed costs and production line fixed costs is created. Site specific copies of this default plant are created and the default cost structure is updated based on the actual values observed at the individual sites. The plant model additionally contains the capacity of the plant and the number of employees required to operate a production line. Based on the capacity consumption factors contained in the product description and the number of operators required per capacity unit, variable personnel costs are allocated to the products. If required, variable costs associated with additional resources contained in the BOM are allocated to the products in identical fashion. [Pg.175]

At the time of writing, DEHA has not yet been included in the EU positive list of additives used to make food contact plastics. With an established TDI of 0.3 mg/kg bw/day and using the normal conservative assumptions of 1 kg food consumed daily and a 60 kg bw, this TDI would give a specific migration limit of 18 mg DEHA per kg food or food simulant. It must be recognised that non-compliance with a migration limit of 18 mg/kg based on this convention does not necessarily mean that the TDI could be exceeded. It seems unlikely that DEHA will be listed until the issue of food consumption factors is resolved. [Pg.215]

Dietary exposure to pesticides (or to xenobiotics in general) is determined by calculating the product of the amount of chemical in or on the food and the total quantity of food consumed. The quantity of chemical potentially consumed in foods can be estimated from data obtained from residue field trials, metabolism studies, and/or monitoring data. Information from these sources is then analyzed with one of several available models containing food consumption factors from surveys conducted by the United States Department of Agriculture (USDA). For calculation of... [Pg.413]

Diamond, J. What is your consumption factor The New York Times, January 2, 2008. [Pg.298]

Application Fuel Energy Consumption factor Effective cost (1998 US /GJ)... [Pg.28]

Table 11-3 Consumption Factors used for Estimating Exposures (CF). Table 11-3 Consumption Factors used for Estimating Exposures (CF).
Species Average Life Span (years) Body Weight (kg) Food Consumption Factor (g/day) Food Consumption Factor2 Water Consumption (ml/day) Inhalation Rate (m3/day)... [Pg.919]


See other pages where Consumption factors is mentioned: [Pg.91]    [Pg.14]    [Pg.16]    [Pg.19]    [Pg.193]    [Pg.104]    [Pg.168]    [Pg.235]    [Pg.130]    [Pg.130]    [Pg.132]    [Pg.393]    [Pg.91]    [Pg.79]    [Pg.91]    [Pg.110]    [Pg.168]    [Pg.174]    [Pg.176]    [Pg.416]    [Pg.338]    [Pg.362]    [Pg.654]    [Pg.262]    [Pg.486]   
See also in sourсe #XX -- [ Pg.362 ]

See also in sourсe #XX -- [ Pg.401 ]




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