Hello everyone,
I need your opinion on sth. I need to heat air with combustion flue gas. All other things been the same, what would be best: have the air in pipes and the flue gas outside the pipes or vica versa? Assume a theoretical geometry - I am just asking what's the best practice with...
Hi IRstuff,
For this particular calculation I only need to express (1)the change in enthalpy for a small change in pressure - and (2) the change of saturation temperature with pressure. It is a partial derivative (dh/dp) so I will keep temperature unchanged. I will still have to try out sth for...
Hi Guys,
Thank you for your time. I have seen the IF97 formulation and the other libraries suggested above. However, I think that programming the IF97 formulation to be part of a system of equations is not very handy. So here is what I did.
I needed to express the change in the enthalpy of...
Hi Guys,
Thank you for your answers. I tried avoid been too specific and complicate things. I am modelling the boiler in MATLAB which will be a DAE system (differential algebraic). I will have to write the differential equations in the form dydt=f(...) and the algebraic ones in the form 0=f()...
Hi guys,
Suppose that someone wants to model a steam boiler but in its dynamic form. He will have to write down the differential equations energy balances etc and the algebraic supporting formulas steam properties and others. It is the steam tables that I want to ask about. There are several...
