a.
Coal analysis
(1)
Ultimate analysis
(percent by weight)
Carbon
[_____]
[_____]
Oxygen
[_____]
[_____]
Sulfur
[_____]
Ash
[_____]
Moisture
[_____]
TOTAL
[_____]
(2)
Proximate analysis (percent by weight)
Moisture
[_____]
Volatile Matter
[_____]
Fixed Carbon
[_____]
Ash
[_____]
TOTAL
[_____]
(3)
Coal characteristics:
Heating value:
[_____] kJ/kg Btu/lb
Ash softening temperature reducing:
[_____] degrees C F
Oxidizing:
[_____] degrees C F
Free swelling index (coke button):
[_____]
Size: 32 by 19 mm: [_____] percent; 19 by 6.35 mm: [_____]
percent; 6.35 by 0 mm: [_____] percentSize: 1 1/4 by 3/4 inch:
[_____] percent; 3/4 by 1/4 inch: [_____] percent; 1/4 by 0 inch:
[_____] percent
(4) Coal Variations: Due to periodic changes in coal suppliers,
the boiler and stoker combination shall be designed to burn any
coal within the following limits (percent by weight unless
indicated otherwise):
Minimum
Maximum
Ash
[_____]
[_____]
Sulfur
[_____]
[_____]
[_____]
[_____]
Carbon
[_____]
[_____]
Moisture
[_____]
[_____]
[_____]
[_____]
Oxygen
[_____]
[_____]
kJ per kg
[_____]
[_____]
Btu per pound
[_____]
[_____]
Ash softening temperature
[_____]
[_____]
Volatile matter
[_____]
[_____]
Fixed carbon
[_____]
[_____]
SECTION 15502N
Page 41
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