I'm in the process of sizing my steam boiler for a 15 BBL 3-vessel brewhouse with a steam-jacketed mash tun and HLT. The total steam requirements (#/hr) are:
Mash Tun 420
Brew Kettle 380
HLT/Combitank 440
However, I'd really like to only get a 399kbtu boiler for environmental, space and cost reasons. We won't be doing back to back brews on the same day for many years, and the 399 kbtu boiler will heat up the HLT from 60 to 212 in 90 minutes or so, which wouldn't really put much of a dent in our brew day timing.
Is there a situation where I'd want to be able to provide full steam to two components (or three) simultaneously?
I would expect the sequence of events to go like this (for a decocted lager)
1. Heat up HLT to strike temperature (HLT only)
2. Dough in. (nothing)
3. At some point during the mash, decoct some mash. (Mash Tun or Combi only)
4. Mash-Out (Mash Tun only)
5. Lauter (probably brew kettle only)
6. Heat the wort to a boil and boil. (Brew kettle only)
What are your thoughts? Additionally, if a vessel has a steam requirement of say, 440 #/hr steam, and I provide 400... do I just get 10% less heat transfer rate?
I'm a licensed Mechanical PE, but I've never worked with low pressure steam-jacketed vessels before.
Cheers,
baybrewer
Mash Tun 420
Brew Kettle 380
HLT/Combitank 440
However, I'd really like to only get a 399kbtu boiler for environmental, space and cost reasons. We won't be doing back to back brews on the same day for many years, and the 399 kbtu boiler will heat up the HLT from 60 to 212 in 90 minutes or so, which wouldn't really put much of a dent in our brew day timing.
Is there a situation where I'd want to be able to provide full steam to two components (or three) simultaneously?
I would expect the sequence of events to go like this (for a decocted lager)
1. Heat up HLT to strike temperature (HLT only)
2. Dough in. (nothing)
3. At some point during the mash, decoct some mash. (Mash Tun or Combi only)
4. Mash-Out (Mash Tun only)
5. Lauter (probably brew kettle only)
6. Heat the wort to a boil and boil. (Brew kettle only)
What are your thoughts? Additionally, if a vessel has a steam requirement of say, 440 #/hr steam, and I provide 400... do I just get 10% less heat transfer rate?
I'm a licensed Mechanical PE, but I've never worked with low pressure steam-jacketed vessels before.
Cheers,
baybrewer
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