MIL-HDBK-1003/6
Table 3
Boiler Selection Criteria
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*
*
*
*
Typical
Possible
* Boiler
*
Capacity
Emissions
*
* Type
Fuel
Range
to Control
Characteristics
*
*
* Fire
*
Oil
350 -
NOx, SOx,
Low Cost; typically fully
* tube
*
35,000 lb/hr toxics
automatic; low pressure
(300 psig max); has salvage *
* (packaged)
*
*
value; small space
*
*
requirements; easily
*
*
transported.
*
*
*
*
Gas
350 -
NOx
*
*
35,000 lb/hr
*
*
*
*
Unfired 350 -
Dependent
Requires reliable heat
*
*
35,000 lb/hr on process
source greater than
*
*
fuel
600 degrees F.
*
*
* Watertube Oil
*
100 -
NOx, SOx,
Low Cost; can be high
* (shop
pressure; movable; smaller *
150,000 lb/hr toxics
* assembled)
*
space requirements then
*
*
field erected.
*
*
*
*
Gas
100 -
NOx
*
*
150,000 lb/hr
*
*
*
*
Unfired 100 -
Dependent on
*
*
35,000 lb/hr process fuel
*
*
* Watertube Gas
*
20,000 -
NOx
* (field
*
No Limit
* erected)
*
*
*
Oil
20,000 -
NOx, SOx,
*
*
No Limit
Toxics
*
*
* Stokers
*
Coal
20,000 -
NOx, SOx,
Are typically more
*
economical for boiler loads *
No Limit
toxics,
*
*
particulate below 100,000 lb/hr; not
*
responsive to load swings. *
*
*
*
*
Wood
20,000 -
NOx, toxics,
*
*
No Limit
particulate
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