We have applied these cost correlations to the production of three typical bio-based bulk chemicals.
Cost correlations linking the equipment's design parameters to the equipment's installed cost were developed and overall costs assessed.
By using cost correlations and standard scale-factors, a spreadsheet-based early-stage cost estimation tool was developed.
A numerical modelization of heat transfer equipements is developed using heat transfer, pressure drop and cost correlations from the open literature.
Since several local optima objective function values are very close to each other, the choice of the best configuration among those found should be done qualitatively, because the differences among the objective function values are not significant if compared to the accuracy of equipment cost correlations in the literature.
These models, which separately approximate the separation tasks and the design and operating conditions necessary to carry out the tasks, are combined with shortcut costing correlations to arrive at an economic measure for flowsheet designs.
Although, this variable is used in the summation of total costs, its correlation coefficient with total cost was less than 0.6 (Spearman's R = 0.5166, p < 0.001), indicating the relationship was insufficient to cause major bias.
The cost values, correlation coefficient (r), and root mean square deviation (RMSD) values together with the pharmacophore features for all of the hypotheses of AChE and BChE are listed in Tables 1 and 2, respectively.
More technically, this is because the real part of the largest eigenvalue of the system, using the fixed average mean field, was uncorrelated to the cost function (correlation coefficient 0.05), which suggests that the absolute value of the real part of this eigenvalue is not important for a robust multicellular oscillator, as long as it is negative.
The alignment is done using a rigid registration (6-degrees of freedom) based on minimizing normalized cross correlation cost function.
