EnergyPlus About Severe Temperature (high) out of bounds for

asked 2022-05-07 03:53:31 -0500

sub5414's avatar

updated 2022-05-09 09:16:03 -0500

Hello, I am a student studying Energy Plus. I want to implement a double skin facade system with SketchUp. So I created a new zone in the form of a curtain wall on the exterior wall of the building.

*************  ** Severe  ** Temperature (high) out of bounds for zone=DSFS1 for surface=DSFS1_FRAME5
*************  **   ~~~   **   This error occurred 52681 total times;
*************  **   ~~~   **   during Warmup 0 times;
*************  **   ~~~   **   during Sizing 0 times.
*************  **   ~~~   **   Max=370.288517 C  Min=200.00516 C

===== Final Error Summary =====
************* The following error categories occurred.  Consider correcting or noting.
************* Temperature (high) out of bounds
************* ..A temperature out of bounds problem can be caused by several things. The user should check:
************* ..1) the weather environment (including the horizontal IR from sky)
************* ..2) the level of interal gains with respect to the zone
************* ..3) the thermal properties of their materials.  And other things.
************* ..A common cause is a building with no or little thermal mass - all materials with Material:NoMass definitions.
************* Nominally Unused Constructions
************* ..The nominally unused constructions warning is provided to alert you to potential conditions that can cause
************* ..extra time during simulation. Each construction is calculated by the algorithm indicated in the HeatBalanceAlgorithm
************* ..object. You may remove the constructions indicated (when you use the DisplayExtraWarnings option).

How can I fix this error?

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According to this error report "DSFS1" zone temps are too hot. This happens when the heat gains within the zone are greater than the heat losses. You'll have to review your inputs to figure out why that may be the case - unfortunately there's no easy fix that I know of. Good luck.

Jono's avatar Jono  ( 2022-05-10 13:24:05 -0500 )edit

I just saw this error. The user had a fan availability schedule that was NOT always on, then used a night cycle manager to turn the fan on if the zone got too hot. The zone got hot so fast (high equipment loads for IT room) that when the fan finally did turn on the HVAC could not meet the load. Make sure you have HVAC (fan and coils) always available to meet the zone load.

rraustad's avatar rraustad  ( 2022-05-10 13:32:05 -0500 )edit