[TRNSYS-users] TYPE 56 And convergence tolerance
javier mota
fjmi_3i at hotmail.com
Tue Jul 4 03:35:53 PDT 2006
dear all:
I AM USING TYPE 56 FOR BUILDING SIMULATION.
I GET TEMPERATURE OUTPUT FROM TYPE 56,
THEN I USE AN EQUATION TO CALCULATE VENTILATION.
IN THIS SIMULATION I GET MANY ERROR OF CONVERGENCE.
IS ANYTHING I CAN DO.
I HEVE PROVED TO CHANGE CONVERGENCE TOLERANCE BUT EVEN WITH A VALUE OF 1
THIS DOES NOT SOLVE ANYTHING.
WHAT MEANS THE CONVERGENCE TOLERANCE, IS IT A MEASURE OF THE ERROR IN
ALL
THE EQUATIONS OF THE PROYECT.RELTIVE CONVERGENCE TOLERANCE MEANS THAT
THE
VARIATIONS BETWEENS THE SOLUTIONS OF CONSECUTIVE EQUATION (SOLUTION A
STEP
N-SOLUTION AT STEP N+1)/(SOLUTION AT STEP N) IS LESS THAT THIS ERROR?
FOR
ALL THE EQUATIONS AND COMPONENTS IN THE PROJECT.
wHAT MAY BE THE MAXIMUN CONVERGENCE TOLERANCE THAT I COUL ADMIT
EXPECTING TO
GET CREDIBLE RESULTS?
THNKS IN ADVENCE.
jAVIER MOTA FROM 3I-INGENIERIA, MADRID
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