Model 4
1500 - 6000 MBTU/hr
Rev. 03-08
Section B2-16
POLLUTANT
UNCONTROLLED
CO
ppm
90
lb/MMBtu
0.07
NOx
ppm
187
lb/MMBtu
0.248
SOx
ppm
270
lb/MMBtu
0.515
HC/
VOCs
ppm
50
lb/MMBtu
0.025
PM
ppm
–
lb/MMBtu
0.025
Emissions
The following tables give typical emission levels for Nature Gas and No. 2 Oil.
Please contact your local Cleaver-Brooks authorized representative if an emission
guarantee is required.
Table B2-11. Model 4 emission
data - Natural Gas
Table B2-12. Model 4 emission
data - No. 2 Oil
POLLUTANT
UNCONTROLLED
CO
ppm
xx200
lb/MMBtu
0.15
NOx
ppm
100
lb/MMBtu
0.12
SOx
ppm
1
lb/MMBtu
0.001
HC/
VOCs
ppm
40
lb/MMBtu
0.016
PM
ppm
–
lb/MMBtu
0.01
NOTES:
Based on fuel oil constituent levels:
Fuel bound nitrogen = 0.05% (max) by weight.
Sulfur = 0.5% (max) by weight.
Ash = 0.01% (max) by weight.
ENGINEERING DATA
The following engineering information is provided for the Model 4 steam boiler.
Additional information may be obtained from your local Cleaver-Brooks authorized
representative.
Feedwater
Steam boilers require make-up water for steam production. This make-up can be a
combination of condensate return and raw make-up, 100% condensate return or
100% raw make-up. Proper treatment of make-up water and boiler water is
essential to the longevity and performance of the boiler. Table B2-13 shows the rate
of make-up required and Table B2-14 shows the recommended water quality
guidelines.
As a minimum, raw make-up should be piped into a water softener and then to a
feed tank, which also can be the container that receives the system condensate
returns. Chemical feed is recommended to be fed via a quill into the water make-
up line feeding the boiler.
