Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Production long runs

Excise taxes placed on specific energy sources tend to reduce the demand for these energy sources in both the short and the long run. The federal government imposes excise taxes on almost all petroleum products and coal (see Table I). The federal government also imposes excise taxes on many transportation uses of methanol, ethanol, natural gas, and propane and imposes a fee on electricity produced from nuclear power plants. [Pg.1118]

Calenders are capable of higher production speeds. Thus, there are situations where they provide a favorable situation for long runs. For these long runs, cost advantages exist. Tolerancewise the calender is easier to produce products that can meet tighter... [Pg.527]

In a production line that has a relatively long run, the cost for equipment in relationship to producing the product including its financial amortization, usually is about 5% with probably maximum of 10% Plastic material cost could be at about 50% with as high as 80% for high volume production. The other costs include power, water, labor, overhead and taxes. With precision, short runs, costs could be equipmentwise at 20 to 30%, material 45 to 50%. Thus, as it is usually stated, do not buy equipment just because it cost less since more profit could occur with the more expensive equipment study what is to be purchased. Of course the reverse is possibly true. So, you the buyer, have to know what you want and are ordering to a specification properly determined based on the designed product requirements. [Pg.575]

Where low-cost labor is available, operators can provide intensive manual cleaning during the annual plant shutdown period. However, this is not a model for operational efficiency, and low-cost labor is seldom that low when quality and productivity is factored in. In the long run, it usually is far better to aim for a higher operational standard from the beginning. [Pg.52]

To illustrate this, we shall start with 2500 A ingredients and set the transition probabilities to Pi (A B) = 0.01, Pi (B A) = 0.02, Pi (A C) = 0.001, and Pi (C A) = 0.0005. Note that these values yield a situation favoring rapid initial transition to species B, since the transition probability for A B is 10 times than that for A C. However, the formal equilibrium constant eq[C]/[A] is 2.0, whereas eq[B]/[A] = 0.5, so that eventually, after the establishment of equilibrium, product C should predominate over product B. This study illustrates the contrast between the short run (kinetic) and the long run (thermodynamic) aspects of a reaction. To see the results, plot the evolution of the numbers of A, B, and C cells against time for a 10,000 iteration run. Determine the average concentrations [A]avg, [B]avg, and [C]avg under equilibrium conditions, along with their standard deviations. Also, determine the iteration Bmax at which ingredient B reaches its maximum value. [Pg.121]

We know, from consulting to a wide range of pharmaceutical and biotech R D groups, that managements are under strong pressure to achieve a breakthrough in their own company performance and, collectively, in industry performance. Ultimately this must be quantified as the long-run ratio between the value created by new products and the costs of R D. [Pg.249]

Most systems can be controlled manually or automatically. The modem trend is to automate the process as much as possible. One reason is that automatic controllers always respond the same way to changes, whereas men are erratic. Controllers may work for years with only minor maintenance, whereas a man fatigues easily. This means that while controllers may not produce a better product than an alert man, they can, in the long run, produce a more uniform product, with less waste and fewer accidents. [Pg.161]

In conclusion, it is noteworthy that cyclodextrins, liposomes and chitin derivatives are all readily available from renewable biochemical sources and offer advantages of biodegradability and safety in use. However, it needs to be borne in mind that this fact alone does not necessarily mean that they are entirely environmentally innocuous in the long run. Demands on resources for the husbanding and processing of bioforms that may be necessary in order to sustain demand for commercially viable qualities and quantities can exert deleterious effects, not least because they may give by-products that present problems of utilisation or disposal [70]. [Pg.76]

Frequent mould cleaning is essential in long-run production to ensure good product appearance. The cleaning frequency is dependent on the application of the components being manufactured, the type of compound being processed and the temperature of vulcanisation. [Pg.198]


See other pages where Production long runs is mentioned: [Pg.280]    [Pg.230]    [Pg.258]    [Pg.1916]    [Pg.2145]    [Pg.517]    [Pg.478]    [Pg.717]    [Pg.1108]    [Pg.1110]    [Pg.185]    [Pg.170]    [Pg.294]    [Pg.562]    [Pg.567]    [Pg.520]    [Pg.930]    [Pg.319]    [Pg.106]    [Pg.115]    [Pg.164]    [Pg.200]    [Pg.38]    [Pg.175]    [Pg.106]    [Pg.62]    [Pg.39]    [Pg.233]    [Pg.327]    [Pg.322]    [Pg.20]    [Pg.162]    [Pg.142]    [Pg.118]    [Pg.120]    [Pg.6]    [Pg.399]    [Pg.430]    [Pg.430]    [Pg.446]    [Pg.449]   
See also in sourсe #XX -- [ Pg.212 ]




SEARCH



Running

© 2024 chempedia.info