Lyrebird_Cycles
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I'm building a little calculator to predict CO2 content, based on some work I did a while back for something else*.
I'm using the Henry's Law coefficients from this paper: https://www.researchgate.net/publication/244342767_Solubility_of_carbon_dioxide_in_binary_and_ternary_mixtures_with_ethanol_and_water.
The basic approach is to model the beer as a ternary mixture, water / alcohol / CO2. I'm thinking that I'm justified in ignoring the contribution of dissolved solids on the following grounds: if the dissolved solids are at say 50 g/l and an assumed average MW of ~630 (obtained by modelling them as equal quantities of maltotriose and maltotetrose) the difference in the mole fraction of water in the presence of solids vs the absence of solids is about 0.2%.
What say the brains trust, is there something I'm missing here?
* I spent a while building thermodynamic models of fermentations as part of the research for a PhD I then abandonned.
I'm using the Henry's Law coefficients from this paper: https://www.researchgate.net/publication/244342767_Solubility_of_carbon_dioxide_in_binary_and_ternary_mixtures_with_ethanol_and_water.
The basic approach is to model the beer as a ternary mixture, water / alcohol / CO2. I'm thinking that I'm justified in ignoring the contribution of dissolved solids on the following grounds: if the dissolved solids are at say 50 g/l and an assumed average MW of ~630 (obtained by modelling them as equal quantities of maltotriose and maltotetrose) the difference in the mole fraction of water in the presence of solids vs the absence of solids is about 0.2%.
What say the brains trust, is there something I'm missing here?
* I spent a while building thermodynamic models of fermentations as part of the research for a PhD I then abandonned.