Ore to LFO ratio?

[NeverEnoughFuel!!]

As the title says what is ore to LFO ratio in 1.1.3? I do have lots of modes but in a test on launch pad from 1200 units of ore I got about 180/180 LFO, junior drills and small converter... basically I don't care how long mining lasts because I have a reactor on board and day/night shift doesn't mean a thing... but I think the ratio was larger in previous versions...

[FullMetalMachinist]

I don't have any specific numbers for you, but it depends. Whether you are using the small or big converter, whether you have an Engineer kerbal aboard, and what level that Engineer is all have an effect on the conversion rate. 

[Tyko]

The small converter is significantly less efficient than the full-size converter. Take a look at the conversion rates for the two in the VAB and you can see the difference.

[Aegolius13]

With the big converter, I'm pretty sure it's 1:1 [by mass].  I did some testing on an asteroid miner, and the mass of the system did not appear to change as I refined, regardless of the ISRU temp.  (i.e, thermal efficiency just affected the speed of the process). 

The smaller ISRU wastes a lot of ore - I think 10% by mass is converted.  

Edited January 12, 2017 by Aegolius13

[bewing]

Note that ore has twice the mass per unit than fuel does. As said above, the small converter throws away most of the ore it processes.

If you use the big converter and process 1000 units of ore, you will get 2000 units of LF.

 

Edited January 11, 2017 by bewing