Hi, I have been programming a log gasification boiler based on its behavior in reality. Unfortunately I have trouble calculating the right mass flow and the outlet temperature. In praxis, the mass flow changes and is variable. But the same goes for the outlet temperature. It increases with time. Since they are dependent on each other (Q = m*cp*deltaT -> m = Q/(cp*deltaT)) I can’t figure out
how to correctly calculate m and T_out. A little about the boiler and system: I now have two unknowns, m and T_out (and three know, Q, cp and T_in). Since in praxis they both vary, I can’t say that one is fixed, at least not completely. I tried setting some boundaries with a minimal and maximal
mass flow but I couldn’t figure it out. Is there a way, type or solution of any kind, where TRNSYS calculates an optimal mass flow/outlet temperature for the system? Thanks a lot for any help! (if needed I can provide the F90 file for the boiler, it’s jus not very clean and I don’t know if it really helps) |