Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

Eplus unusual warning

asked 2016-05-06 10:21:00 -0600

luis melo's avatar

updated 2016-05-09 03:59:19 -0600

I was trying to simulate in Eplus a double skin façade with four vertical thermal zones (subzones) when I got this Warning: "Inside surface heat balance did not converge with Max Temp Difference [C] =2.026E-003 vs Max Allowed Temp Diff [C] =2.000E-003"

What's the correlation with Heat balance algorithm? Can anyone help me?

Conduction transfer

Thank You

edit retag flag offensive close merge delete

1 Answer

Sort by » oldest newest most voted

answered 2016-05-07 06:30:14 -0600

gaofeng's avatar

In my view, you can try to reset the maximum surface convection heat transfer coefficient value to the default value 1000. I'm not sure whether this method can solve your problem, just a suggestion.

edit flag offensive delete link more


It was my first option, and doesn't work.

Thank you!!

luis melo's avatar luis melo  ( 2016-05-09 03:53:18 -0600 )edit

The problem is solved. I changed the numbers of timesteps from 6 to 12. Lower number of time steps leds to higher delta T between the timesteps (higher than Temperature Convergence Tolerance).

luis melo's avatar luis melo  ( 2016-05-18 04:02:42 -0600 )edit

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer


Question Tools

1 follower


Asked: 2016-05-06 10:21:00 -0600

Seen: 327 times

Last updated: May 09 '16