yoelcortes
commented
9 months ago @zasddsgg,
There was a bug in thermosteam where the molecular weight was not updated with the formula. Now it's fixed and the sugar oligomers have the right combustion formula. Regarding the burning of inorgarnic materials, these are hard to predict and are not handled well in thermosteam (yet). Thermosteam uses this formula for predicting heats of combustion, but it is only meant to be used for organic compounds:
https://chemicals.readthedocs.io/chemicals.combustion.html#combustion-stoichiometry
Fortunately these are only minor components and do not factor in results to significantly.
Thanks!
zasddsgg
Hello, when I called the BoilerTurbogenerator, I was a little confused about some combustion reactions in the boiler, may I ask you why these reactions occurred? Thanks a lot. Wish you a good day. The reactions are as follows: H2SO4 -> Water + 0.5 O2 + SO2 HNO3 -> 0.5 Water + 0.5 N2 + 1.25 O2 NO2 -> 0.5 N2 + O2 NO -> 0.5 N2 + 0.5 O2 Lime -> Water + 0.5 O2 + 40.1 Ash DAP + 1.5 O2 -> 4.5 Water + 0.25 P4O10 + N2 NaNO3 -> 0.5 N2 + 1.5 O2 + 23 Ash CaSO4 -> O2 + SO2 + 40.1 Ash NaOH -> 0.5 Water + 0.25 O2 + 23 Ash 6 O2 + GlucoseOligomer -> 5 Water + 6 CO2 + 18 Ash 0.5 Water + NaCl -> 0.25 O2 + 23 Ash + HCl
In terms of the above reactions, could I consult you why sulfuric acid produces oxygen, water and sulfur dioxide, why nitric acid produces water, nitrogen and oxygen? Why do nitrogenous substances produce nitrogen instead of nitrogen oxides (shouldn't nitrogenous substances produce nitrogen oxides during combustion), and why do nitric oxide and nitrogen dioxide produce nitrogen and oxygen? Why does burning calcium hydroxide produce water, oxygen, Ash? DAP burning will generate P4O10, shouldn't it be P2O5? Why does sodium nitrate form nitrogen, oxygen, Ash? Why does calcium sulfate produce oxygen, sulfur dioxide, Ash? Why does sodium hydroxide form water, oxygen, Ash? Why does the oligomer produce Ash? Don't oligomers, just like monosaccharide, produce water and carbon dioxide only? Why does sodium chloride produce oxygen, Ash and hydrogen chloride? Wouldn't the hydrogen chloride then go on to participate in the combustion reaction? I search CAS No. 7647-01-0 in thermosteam, and the corresponding substance is hydrochloric acid in the phase state of gas. Is gaseous hydrogen chloride generated in the above reaction the corresponding substance of CAS No. 7647-01-0, that is, gaseous hydrochloric acid? These reactions, like sodium chloride, sodium nitrate, sodium hydroxide, calcium sulfate, calcium hydroxide, NO, NO2, do not seem to burn, so why do these reactions occur in boilers?