Timeline for How do I predict vaporisation during the boil?
Current License: CC BY-SA 3.0
8 events
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| May 27, 2016 at 11:34 | comment | added | FredrikH-R | Just a thought: Many people use specially made "automatic" breweries (like BeerBrew, Speidel, Grainfather, etc.). I these cases the manufacturer should surely know the efficiency of the equipment (or it could be mapped)? I'm certainly planning to ask about my BB60. In any case, it would be interesting to index the usual rigs. | |
| May 27, 2016 at 11:13 | comment | added | FredrikH-R | Excellent! This is something like what I'm after, although most of the measurement units you mention are completely new to me (hence I haven't been able to force myself to test it yet). I will eventually get to it, but is there an easy way to translate this into SI units? I was unaware that evaporation and vaporisation was not the same thing, so thanks for pointing that out. I'll update my question accordingly. | |
| May 16, 2016 at 12:49 | comment | added | Evil Zymurgist | @Gremwatch I built a high efficiency hlt, calculated it was 118% efficiency btu of propanes potential, boiled 20gal from 55 to 205 with 1lb of propane. I decided I needed a better scale lol, haven't restested since. | |
| May 16, 2016 at 12:34 | comment | added | Gremwatch | Also I'm expressing it as a fraction of total theoretical btu output. | |
| May 16, 2016 at 12:33 | comment | added | Gremwatch | Yea this method is impractical.l as all hell but it should work. Also the efficiency that I am calculating is exactly that I'm just using c instead of f. | |
| May 16, 2016 at 12:11 | comment | added | Evil Zymurgist | @brewchez indeed, it's much easier to just test your burner / kettle combo and establish its actual BTU rather than figuring its "efficiency". It takes 1 BTU to raise 1lb of water 1°F. Even still it's just a novelty to have this data and doesn't replace a boil test on a brewsystem | |
| May 16, 2016 at 10:32 | comment | added | brewchez | Interesting, but to be fair the BTU ratings on those burners are generally all over the place. Burners clearly made from the same casting from different vendors will have listed wildly different BTU #s. And there is no standard for determining the BTU rating in that part of the market. There is no standardization of the regulator on the propane tanks usually either. That alone can wildly effect the BTU output. Tough to use equations when your inputs are all over the place. | |
| May 16, 2016 at 3:01 | history | answered | Gremwatch | CC BY-SA 3.0 |