Thermodynamic perfection, cumulative degree

In analyzing the production of materials and energy flows, the values of r can be compared with the exergy of the product. The ratio of the specific exergy of the product ex to is called the cumulative degree of thermodynamic perfection 17 for a certain production network... 

The cumulative degree of thermodynamic perfection for real byproducts u is defined by... 

If r)zm < T)b the value r)u>l results from Eq. (5.18). Some typical values of the cumulative degree of thermodynamic perfection 17 are given in Table 5.1. For small values of r that result from the substitution ratio ziu, the cumulative exergy consumption will be large for the major product j of the specified process technology. 

Table 5.1 Cumulative degrees of thermodynamic perfection for some production technologies...

Table 5.1 Cumulative Degrees of Thermodynamic Perfection for Some Production Technologies...

---