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Dear colleagues,
Also, I did what the Tutorial says, put in the front wall: internal calculation/vertical wall and the back wall: user-defined: Houtside.
What's the solution?
Best regards,
Ricardo
Ricardo,
Without seeing the *.b18 file I cannot be certain of what is going on. TRNBuild/Type56 gives you the option to internally compute a convective heat transfer coefficient that depends on the difference between the local surface and air temperature. However, you can only do that for an inside surface. I have had some situations in which I defined a wall with such coefficients and then accidentally used the same wall type as an external wall, which is not allowed. I'd recommend going through the *.b18 and making sure that all of your surfaces are set to constant convective heat transfer coefficients. Make sure TRNBuild will save the file (i.e. that it isn't corrupted somehow). Then make your change to defining the outside convective coefficient to the name of your INPUT.
If none of that works then revert back to the last savable version of your file and send it to your distributor with very specific instructions on the change that has to be made in order for the file to become unsavable.
kind regards,
David
