Simple quarry/refinery question

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tyler f

New Member
Jul 29, 2019
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Are quarries and refineries linearly efficient per MJ? A quarry with 24 MJ is half as fast as a quarry with 48? and same question for refineries?

Also, is the max refinery input 25 Mj/T?
 
as for the first, no. the most efficient quarry is I think... 9mjt? I forget... tis on the BC wiki (or KingLemming did some calculations honestly i can't remember)
 
Quarries can take up to 100 mj/t, however the corresponding increase in speed has significant diminishing returns. I've heard someone somewhere did some testing to find the optimum mj/t to supply, but I haven't found it yet.
EDIT: Oh and you can use an mj reader to find out what the max mj/t input of a machine like the refinery is.
 
A quarry is most efficient (most blocks for a given amount of MJ) at 7 MJ/t (source, according to King Lemming, so it should be good). Speed gains are negligible beyond about 25 MJ/t. AustinKK of the ComputerCraft forums did a speed test that showed no difference between 25MJ/t and 125 (source, go to about 11:30 to see the graph).
 
How about efficiency of refineries?

Refineries require 10k MJ to convert 1 bucket of oil into 1 bucket of fuel and can take 25MJ/t as input.

Because it's a flat amount of MJ to perform the conversion there is no change in efficiency, only speed.
 
Just tested, it takes 12 k MJ. I put 3 refineries on RECs with different outputs (5,10,50), every refinery took 12k MJ per bucket, except refinery placed on 50 MJ/t REC, which took additional 1000 MJ for first bucket of oil processed.