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Conference Proceedings

Eighth International Mine Ventilation Congress

Conference Proceedings

Eighth International Mine Ventilation Congress

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Factors Influencing the Choice of Cooling and Refrigeration Systems for Mines

For hot mines, the use of mechanical refrigeration machines has become an essential feature of ventilation and cooling systems. Over the last 30 years, considerable effort has been made in developing refrigeration strategies and equipment to provide cooling that is cost-effective, reliable and energy efficient. In addition to these general design requirements it is necessary to take into account project specific factors such as long term mine cooling needs, operating strategy and installation time. This paper examines a number of actual mine cooling installations which illustrate how these features have influenced the design and installations._x000D_
For many mines, it is known how the cooling requirements will increase as the mine develops, based on the life of mine plan. The design of the cooling installation must cater for both short- and long-term needs. The initial installation (to meet short-term requirements) must form an integral part of the ultimate cooling installation and as additional equipment and refrigeration machines are installed, it is necessary to ensure that the system remains cost-effective, reliable and energy efficient at all stages._x000D_
For many mines, refrigeration machines are installed on surface and either operated near-continuously, or for the summer months only. Different maintenance strategies and policies with regard to standby equipment are highlighted for three mine installations._x000D_
In spite of developments in cooling strategy, the cost of providing refrigeration remains expensive and many mines delay the introduction of refrigeration, as long as possible. When it is finally accepted that refrigeration is absolutely necessary, it is frequently necessary to fast track' the installation. To minimise site erection time and meet installation deadlines, factory pre-assembly and standardised modular equipment are widely used.
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  • Factors Influencing the Choice of Cooling and Refrigeration Systems for Mines
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  • Published: 2005
  • PDF Size: 0.166 Mb.
  • Unique ID: P200506007

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