Retrotec USACE - Manual (Page 356)

G26 ENERGY & PROCESS ASSESSMENT PROTOCOL
appliances—i.e., to fi nd overloaded or overheated conductors or switches (see
Figure G28).
Figure G27.The IR thermogram on the left is a correctly operating steam trap, and the IR
thermogram on the right one that has failed. (Images from Infrared Training Center.)
The current trend in IR thermography applications is shifting toward more
quantitative procedures, thus increasing the use of this technique in the eval-
uation of material properties. Because of the improved resolution and perfor-
mance of modern IR imagers, and due to advanced mathematical models, it
is believed that in the close future IR thermography will become a source of
more reliable information about building conditions and material properties.
Figure G28. The IR thermogram on the left is showing heat gain that may be due to an
overheated motor bearing. (Images from Infrared Training Center.)
G.13 A Typical Energy Audit Procedure
Using IR Thermography
Inform the customers, agree on the date, and give instructions, if needed. ■
Verify the existing information of the structures, structural details, ven- ■
tilation, and heating.