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    Energy and exergy analyses of energy consumptions in the industrial sector in South Africa

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    Oladiran_AE_2007.pdf (575.4Kb)
    Date
    2007
    Author
    Meyer, J.P.
    Publisher
    Elsevier Science Ltd, http://www.elsevier.com/locate/apenergy
    Link
    http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6V1T-4NY4RWX-2-11&_cdi=5683&_user=778200&_pii=S030626190700027X&_origin=browse&_zone=rslt_list_item&_coverDate=10%2F31%2F2007&_sk=999159989&wchp=dGLbVlW-zSkzS&md5=13e229c4158fa4d859d0b1c433393aea&ie=/sdarticle.pdf
    Type
    Published Article
    Metadata
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    Abstract
    The energy-utilization over a 10-year period (1994–2003) has been analysed for the South African industrial sector, which consumes more primary energy than any other sector of the economy. Four principal sub-sectors, namely iron and steel, chemical and petrochemical, mining and quarrying, and non-ferrous metals/non-metallic minerals were considered in this study. Primary-energy utilization data were used to calculate the weighted mean energy and exergy efficiencies for the sub-sectors and then overall values for the industrial sector were obtained. The results indicate that exergy efficiency is considerably lower than energy efficiency in all the sub-sectors, particularly in mining and quarrying processes, for which the values were approximately 83% and 16%, respectively. The performance of exergy utilization in the industrial sector can be improved by introducing various conservation strategies. Results from this study were compared with those for other countries.
    URI
    http://hdl.handle.net/10311/668
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    • Research articles (Dept of Mechanical Engineering) [48]

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