Theoretic energy consumption

The lowest and most focused manufacturing level is the turret level, which represents the actual material transformation process itself. Energy assessment and management at this level involves knowledge of the interactions of the mechanical and chemical processes in order to establish theoretical energy consumption values of the process. 

Theoretical energy consumption for hydrogen production from different feedstocks. 

Figure 10.11 Comparison of the theoretical energy consumption and the actual energy consumption of electrodialysis desalination systems. Most of the difference results from concentration polarization effects [24]...

Because of a higher theoretical decomposition voltage mercury cathode electrolyzers have also a higher theoretical energy consumption. If for the preparation of 100 kg of sodium hydroxide 67 kA-hr. are required according to Faraday s law, then the theoretical energy consumption equals... 

Actual vs. theoretical energy consumption for 16 chemicals and 3 industry groups as shown in Fig. 17 and energy performance levels in Fig. 18. Replacement of hazardous substances An example is a new route to dimethyl carbonate... 

The theoretical energy consumption of a compressor (as well as any machine transforming mechanical energy) in reversible adiabatic conditions can be calculated by the following equation ... 

Theoretic energy consumption can be divided into theoretic energy consumption of process and product. The theoretic energy consumption of process refers to the energy consumption by unit product made by raw materials (may or may not be the primary standard substance in environment), i.e. the ideal power of process. The product energy consumption refers to the energy consumption by unit product made from raw materials in environment state. The difference between them is... 

It is observed that the theoretical energy consumption of the unit product is just the exergy value of it, which is independent of raw materials and methods used. However, the theoretical energy consumption of the process is related to the raw materials, and when raw materials used is different, the value may be quite different. 

Table 9.12 Theoretical energy consumption of synthesis ammonia/(GJ/t)...

Total reaction equation of producing ammonia process AH = AHv Theoretical energy consumption of process Theoretical energy consumption of product ... 

The process theoretic energy consumption expresses making external power, + expresses consumed external power, contrary to symbol... 

Figure 7.7 Theoretical energy consumption surface for electrowirming zinc.

The efficiency of modern processes is in the range 32-35 GJ ton GCV depending on the process and the application. Factors such as plant scale and ambient temperature have a significant effect. It is noteworthy that the minimum theoretical energy consumption is the calorific value of ammonia itself. This is... 

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