SciELO - Scientific Electronic Library Online

vol.31 issue3Ensuring sustainable and resilient air traffic management systems for South Africa with complexity and whole-of-society theory approachesModelling the tendencies of a residential population to conserve water author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand



Related links

  • On index processCited by Google
  • On index processSimilars in Google


South African Journal of Industrial Engineering

On-line version ISSN 2224-7890
Print version ISSN 1012-277X


DEWA, M.T.; VAN DER MERWE, A.F.  and  MATOPE, S.. Production scheduling heuristics for frequent load-shedding scenarios: a knowledge engineering approach. S. Afr. J. Ind. Eng. [online]. 2020, vol.31, n.3, pp.110-121. ISSN 2224-7890.

Most industrial machinery and equipment used by the South African manufacturing sector is powered by either a direct current or an alternating current electricity supply. With the recent frequent power cuts caused by load shedding, operations managers have a difficult time trying to satisfy demand. Power cuts are a supplier-related operational disturbance that leads to production halts, increased downtime, and a significant compromise in delivery due date conformance. The paper presents heuristic rules of thumb that can be applied during the process planning and scheduling of orders during cases of frequent load shedding to maintain high levels of system reliability and productivity. Different load shedding scenarios are characterised, and an appropriate strategy for production planning and scheduling is outlined for each scenario. A knowledge engineering approach is employed in the study, with expert opinions derived from surveys and the literature employed to generate the strategies. These strategies are validated through a simulation study conducted in a small manufacturing firm.

        · abstract in Afrikaans     · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License