Page 216 - Boiler plant and distribution system optimization manual

Boiler Plant Calculations 201

COMBUSTIBLE LOSSES Explanation
(CARBON MONOxIDE) See Tables 11-15 and 11-16. Using the excess
air level in the left column and the measured Car-
When combustion is incomplete, unburned bon Monoxide (CO) in parts per million (PPM)
fuel can escape with the exit flue gases. One mea- along the top, the intersection of the two mea-
surement of this loss is the Carbon Monoxide surements will provide a value for the losses in-
(CO) level. Carbon Monoxide also has a toxic ef- volved.
fect on humans so its deadly presence could mean
much more than an energy loss. 1. Burner repairs have lowered the carbon
monoxide level in the combustion gasses of

Table 11-15

Carbon, Monoxide Energy Loss Table for Natural gas