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- W2912798856 abstract "The mining sector is struggling to stay profitable. Increased mining costs are one of the main contributors of reduced profit. Electricity is a significant expenditure of South African mines. Mine cooling systems often contribute to more than 20% of the total mine electricity cost. There is a need to reduce mine cooling system expenditure. Numerous methods exist to decrease the electricity cost on mine cooling systems. These methods lacked an integrated approach. An integrated methodology was developed to identify electricity savings on a deep-level mine cooling system. Reduced Eskom demand-side management funding required the methodology to prioritise cost-effective electricity cost saving methods. The methodology specifically focusses on decreasing the fridge plant load during Eskom peak periods. A deep-level platinum mine was chosen as a case study. At the time of the investigation, load shifting was already implemented on the mine’s cooling system. By applying the developed methodology to the cooling system, it was revealed that additional savings can be achieved by implementing peak clipping to the surface bulk air cooler (BAC). The BAC peak clipping allowed for additional fridge plants to be stopped during the Eskom evening peak period. Safety parameters were maintained within the specified limits. Implementation of the methodology on the case study resulted in an annual electricity saving of R1.65-million." @default.
- W2912798856 created "2019-02-21" @default.
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- W2912798856 date "2018-08-01" @default.
- W2912798856 modified "2023-09-24" @default.
- W2912798856 title "Identification Model for Cost-Effective Electricity Savings on a Deep-Level Mine Surface Refrigeration System" @default.
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