solve a Heat ex changer question and its showing it has a Algebraic Loops error
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It is a counterflow hot gas and air heat exchanger,we have three unknowns and three equations.
the input are:
T1IN: temperature of hot gas
T2IN: temperature of air
M1DOT: mass flow rate of gas
M2DOT; mass flow rate of air
C1: heat capacity of has
C2: heat capacity of air
U: heat transfers coefficient
A: heat transfer surface area
the output are
Q:
T1OUT: gas temperature out
T2OUT: air temperature out
Three equations:
Q=C1*M1*(T1IN-T1OUT)
Q=C2*M2*(T2OUT-T2IN)
Q={U*A*(T1OUT-T2IN-T1IN+T2OUT)}/{LN(T1OUT-T2IN)/(T1IN-T2OUT)}
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Antworten (2)
Radha Krishna Maddukuri
am 25 Mär. 2015
Hello,
I see that you have met with an algebraic loop in your Simulink Model.
To eliminate this message, you can do the following: Configuration Parameters(Ctrl+E) --> Diagnostics --> Algebraic Loop --> choose none from the drop-down.
However, as the error message points out, it is not a good practice to have Algebraic Loops in your model.
Therefore I suggest you to go through the following solution by MathWorks Support Team:
This solution gives a clear understanding of Algebraic loops, and it also sheds light on resolving them with better practices for modelling.
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Radha Krishna Maddukuri
am 27 Mär. 2015
If you find the answer helpful, you can accept the answer, so that others who search for similar queries, may know that the answer was indeed helpful.
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