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Jacketed or BM boilers - what is the surface temp range that is prone to scorching or burning inflowing wash?
I can only assume there are many variables based on wash contents, Brix (sugar content etc), viscosity, grain in or lautered wash, boiler filling speed etc etc.
I am looking to preheat my BM boilers (thermal HX) & Wash seperately (HERMS - long retention & slow flow using thermal HX) prior to runs.
Therefore - should boiler surface temp & wash temp be pre-heated at same temp OR a have significant Delta in temp range of the jacket versus RIMS to utilise the thermal transfer from the jacket temp?
Are there general temps as a guideline or ball-park..
e.g- Jacket surface temp @ 90c with wash entering boiler @ 70 (Delta 20c) & then heated to 95c through the cycle.
Should the jacket surface temp be upwards of 110 & 120c in order for a larger Delta?
I also have in mind a RIMS tube as a variable heat source on the wash inlet to boilers OR a RIMS on the side of Boiler to boost boiler temps.
Latent Boiler or HX heat not an issue to me at this point as I want to utilise multiple runs per day.