NDLI: Load-shifting opportunities for a typical South African cement plant

Content Provider	IEEE Xplore Digital Library
Author	Lidbetter, R.T. Liebenberg, L.
Copyright Year	2011
Description	Author affiliation: Center for Research and Continuing Engineering Development, North-West University (Pretoria campus), South Africa (Lidbetter, R.T.; Liebenberg, L.)
Abstract	Investigations into demand side reductions have been encouraged by the utility in sectors with high electricity consumption, such as the cement industry. It is responsible for 5% of the electrical consumption for the mining and industrial division of the country. It has also been estimated that by 2020 this sector will be ranked fifth for energy savings potential. This paper investigates the potential of a load-shifting scheme to reduce evening peak loads and save electrical costs on a raw mill at a South African cement plant. A simulation was performed, which showed that six hours of load-shifting could be achieved, without adversely affecting production. This was corroborated by a pilot study where the load was successfully shifted for six hours over a week-long period. The specific raw mill would achieve a reduction in yearly electrical costs of 2% when employing this load-shifting strategy. The results however showed that cost-saving opportunities are highly dependent on the reliability of the mills and on the change in production demand. Therefore, load-shifting schemes have to be highly adaptable on a daily basis to shift load when possible.
Starting Page	17
Ending Page	25
File Size	913594
Page Count	9
File Format	PDF
ISBN	9781457717451
e-ISBN	9780981431161
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-16
Publisher Place	South Africa
Access Restriction	Subscribed
Rights Holder	Cape Peninsula Univ of Tec
Subject Keyword	Kilns Electric potential Production Coal Materials Reliability Load modeling
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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