Optimisation of use of surplus night electricity in electrochemical processes

✍ Scribed by N. Ibl; P.M. Robertson

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 997 KB
• Volume: 18
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(73)85044-3

✦ Synopsis

Cheaper electric energy is available during certain periods of the day, especially at night.

Electrochemical

plants could make use of the surplus electricity by applying a variable current density. An analysis of the problem is presented for an electrolysis operated at two different current densities. The optimum values of these current densities were calculated by balancing the investment against the energy (or fuel) costs. Dimensionless groups were introduced in order to reduce the large number of parameters and variables involved. As an extension of previous work the optimization was carried out by two methods: (a) by considering simultaneously the expenses for the electrolytic V number of time units contained in a year W revenue from sales of product, %/yr Subscripts I and 2 refer to night and day time period, respectively.