- Title
- Evaluation of savings from an underground fan replacement project
- Creator
- De Canha, D., Pretorius, J.H.C., Laubscher, R., Van Rhyn, P.
- Subject
- Measurement and verification, Energy efficiency, Underground ventilation
- Date
- 2016
- Type
- Conference proceedings
- Identifier
- http://hdl.handle.net/10210/213676
- Identifier
- uj:21182
- Identifier
- De Canha, D. et al. 2016. Evaluation of savings from an underground fan replacement project.
- Description
- Abstract: The savings calculation methodology from a fan replacement project is presented in this paper. The fans replaced are part of the underground ventilation system in a platinum mine. Initially, 290 axial flow fans rated at 45kW were to be replaced with carbon fibre composite fans. According to the manufacturer, the carbon fibre construction allowed for an optimum blade shape which results in the carbon fibre fan being more energy efficient. However, after the first few fans were replaced, it was discovered that the mine’s blasting activities caused the carbon fibre fans to crack and eventually fail. Fortunately, the manufacturer was able to produce a steel fan with similar performance to that of the carbon composite fans and continue replacing old fans in the mine. The savings were independently verified according to the International Performance Measurement & Verification Protocol (IPMVP). This involved testing old and new fans in a BS848 test duct and comparing the old and new fans at various operating points on their fan curves and making adjustments for operating conditions such as air density underground vs at the test duct. It was found that the new fans saved 5kW on average, across a range of operating points.
- Language
- English
- Rights
- ©2016, authors
- Full Text
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