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Now showing items 11-20 of 33
Modernising underground compressed air DSM projects to reduce operating costs
(2014)
Growing demand for electricity forces suppliers to expand their generation capacity. Financing these expansion programmes results in electricity cost increases above inflation rates. By reducing electricity consumption, ...
A game theoretic approach to improve energy efficiency of wireless sensor nodes
(2015)
Wireless sensor networks (WSNs) are becoming increasingly pervasive in a number of applications. Due to the nature of WSNs, one of their biggest constraints is limited node energy. As WSNs grow in popularity, the prevalent ...
Improving efficiency of a mine compressed air system
(North-West University (South Africa) , Potchefstroom Campus, 2017)
Eskom supplies electricity to South Africa, which experienced a capacity margin shortfall. Energy savings
companies (ESCOs) implement demand side management (DSM) initiatives to reduce the power strain
on the electricity ...
High pressure water supply strategy for mine bulk air coolers
(North-West University (South Africa)., 2022)
South African gold mines face many challenges with rising production costs being amongst the biggest concerns. Labour unrest and low economic growth along with increased production costs are affecting the productivity and ...
Reducing energy consumption of a deep-level platinum mine dewatering system through infrastructure reconfiguration
(North-West University (South Africa)., 2022)
South Africa is the largest producer of platinum in the world, accounting for up to 80% of global production. The mining sector contributes significantly to the South African economy, but this contribution is hindered by ...
An integrated methodology to measure and verify energy conservation under incentive-based irrigation pumping programmes
(North-West University (South Africa)., 2019)
Water scarcity and droughts have become a looming threat in many counties worldwide. In South Africa, a water crisis is upon the country and estimations show a supply shortfall of 17% by 2030. When considering water ...
An improved baseline model for a mine surface cooling plant DSM project
(North-West University (South Africa) , Potchefstroom Campus, 2017)
Several challenges exist for the successful implementation of energy cost reduction projects on industrial systems. Due to the potential large financial impact of these projects, the process of determining and reporting ...
Improved implementation strategies to sustain energy saving measures on mine cooling systems
(2015)
Reliable, efficient and cost-effective energy supply is crucial for economic and social development. Mining and industrial sectors consumed close to 37% of the total energy produced in the world during 2013. The South ...
Expanding compressed air management through cross cut isolation
(North-West University (South Africa)., 2022)
Compressed air on deep-level mines is regarded as an important source of energy for underground mining operations, as the compressed air network forms the backbone of several mining processes over a 24-hour mining cycle. ...
Optimising energy recovery on mine dewatering systems
(North-West University, 2018)
Mines in South Africa face many challenges. Chief among these are rising production costs. This coupled with labour unrests and investor uncertainty means that mines are under significant strain. An excellent method to ...