second combustion chamber E from which they are
led through arches F to the boiler. The arrangement of such arches is
modified to suit the boiler or boilers with which the furnace is
operated. A furnace of such design embodies the essential features of
ample combustion space and long gas travel.

The fuel should be fed to the furnace through an opening in the roof
above the pit by some mechanical means which will insure a constant fuel
feed and at the same time prevent the inrush of cold air into the
furnace.

This class of fuel deposits a considerable quantity of dust, which if
not removed promptly will fuse into a hard glass-like clinker. Ample
provision should be made for the removal of such dust from the furnace,
the gas ducts and the boiler setting, and these should be thoroughly
cleaned once in 24 hours.

Table 45 gives the results of several tests on Babcock & Wilcox boilers
using fuel of this character.

TABLE 45

TESTS OF BABCOCK & WILCOX BOILERS WITH GREEN BAGASSE
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| Duration of Test | Hours | 12 | 10 | 10 | 10 |
| Rated Capacity of Boiler |Horse Power| 319 | 319 | 319 | 319 |
| Grate Surface |Square Feet| 33 | 33 | 16.5 | 16.5 |
| Draft in Furnace | Inches | .30 | .28 | .29 | .27 |
| Draft at Damper | Inches | .47 | .45 | .46 | .48 |
| Blast under Grates | Inches | ... | ... | ... | .34 |
| Temperature of Exit Gases | Degrees F.| 536 | 541 | 522 | 547 |
| /CO_{2} | Per Cent | 13.8 | 12.6 | 11.7 | 12.8 |
| Flue Gas Analysis { O | Per Cent | 5.9 | 7.6 | 8.2 | 6.9 |
| \CO | Per Cent | 0.0 | 0.0 | 0.0 | 0.0 |
| Bagasse per Hour as Fired | Pounds | 4980 | 4479 | 5040 | 5586 |
| Moisture in Bagasse | Per Cent |52.39 |52.93 |51.84 |51.71 |
| Dry Bagasse per Hour | Pounds | 2371 | 2108 | 2427 | 2697 |
| Dry Bagasse per Square Foot| | | | | |
| of Grate Surface per Hour| Pounds | 71.9 | 63.9 |147.1 |163.4 |
| Water per Hour from and at | | | | | |
| 212 Degrees | Pounds |10141 | 9850 |10430 |11229 |
| Per Cent of Rated Capacity | | | | | |
| Developed | Per Cent | 92.1 | 89.2 | 94.7 |102.0 |
|________