MWalford

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.

Hi,

The results of the recommend airway size function do appear to make sense. Could you help explain please

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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
 

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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..

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