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MWalford

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  1. Thanks Martin. I think I understand now, the costs and power from the airway optimizer are only for that one airway segment. The 'installed' fan accounts for all segments within the circuit.
  2. Hi, The results of the recommend airway size function do appear to make sense. Could you help explain please ___________________________________________________________________________________________________ Number Unique 342175 : , Length 108.2 m Current life time cost for size: 4.5 m Diameter = 15.9 m² $ 917,089 Total Cost which consists of $ 825,559 Mining Capital Cost = $ 7,633 / m $ 15,112 Fan Capital Component $ 76,418 Power Cost (5 year) discounted : 16.8 kW Recommended life time cost size: 4.3 m Diameter = 14.2 m² $ 911,374 Total Cost which consists of $ 791,025 Mining Capital Cost = $ 7,313 / m $ 19,870 Fan Capital Component $ 100,479 Power Cost (5 year) discounted : 22.1 kW Potential Savings: $ 5,715 $ 34,535 Mining Capital Cost $ -4,758 Fan Capital Component $ -24,061 Power Cost (-5.3 kW, 5 year) discounted $ -5,558 Annual Power Savings ________________________________________________________________________________________________________ Mining capital cost – This is straight forward I have entered quotes from the same company for various different sizes to establish this (did not include cost of waste haulage) Fan capital component – I can’t see where this comes from. Figures used in settings are $900/kw of installed fan power operating at 280kw. Power cost – again I cant see where this comes from 280kw, $0.12/kwh..
  3. Hi, Can we get a function to export the 3d network to a 2d presentation sheet where network can be manipulated (without affecting actual model) into a tidy diagram that can be easily presented to others. -This would also be great for Ventsim Thanks
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