Arc Furnace II
An Arc Furnace II is a direct upgrade from the Arc Furnace machine. It carries a 50% higher Worker and a 83% higher Electricity requirement in addition to Water, some of which can be recovered by passing the byproduct Steam (Low) through Cooling Towers. In exchange, it doubles throughput of Silicon smelting without increasing the need for Coal or Graphite.
Additionally, it incorporates smelting recipes for Iron Ore Crushed, Copper Ore Crushed, and Glass Mix similar to those available in the Blast Furnace II which make it possible to replace all Blast Furnace II machines on the island. These recipes switch 15 Coal for 6 Water and 3 Graphite (plus 4 Tflop and 5.5 MW power consumption), whilst generating 6 Steam Lo and reducing Exhaust output by 24/min. Assuming that all Graphite is made from Coal and Chlorine, this amounts to a 90% reduction in Coal usage.
While Nuclear Reactor [II•FBR] or Solar Panel [Mono], are strongly recommended for powering the Arc Furnace II, Boiler (Coal) is still a viable option. Even with coal power, overall Coal usage still drops by 16.7-25.0% relative to a Blast Furnace II, depending on how efficiently the Steam (Low) byproduct is used. Similarly, Exhaust drops by 2.0-4.5 per furnace.
Below are all the recipes, which this building is capable of producing. Note, that some of them may be locked behind Research, and not immediately available in your game.
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