| 1 | Test of | boiler located at | |
| | to determine | conducted by | |
| 2 | Kind of furnace | |
| 3 | Grate surface | square feet |
| 4 | Water-heating surface | square feet |
| 5 | Superheating surface | square feet [Pg 275] |
| 6 | Date | |
| 7 | Duration | hours |
| 8 | Kind and size of coal | |
| AVERAGE PRESSURES, TEMPERATURES, ETC. |
| 9 | Steam pressure by gauge | pounds |
| 10 | Temperature of feed water entering boiler | degrees |
| 11 | Temperature of escaping gases leaving boiler | degrees |
| 12 | Force of draft between damper and boiler | inches |
| 13 | Percentage of moisture in steam, or number degrees of superheating | per cent or degrees |
| TOTAL QUANTITIES |
| 14 | Weight of coal as fired[72] | pounds |
| 15 | Percentage of moisture in coal | per cent |
| 16 | Total weight of dry coal consumed | pounds |
| 17 | Total ash and refuse | pounds |
| 18 | Percentage of ash and refuse in dry coal | per cent |
| 19 | Total weight of water fed to the boiler[73] | pounds |
| 20 | Total water evaporated, corrected for moisture in steam | pounds |
| 21 | Total equivalent evaporation from and at 212 degrees | pounds |
| HOURLY QUANTITIES AND RATES |
| 22 | Dry coal consumed per hour | pounds |
| 23 | Dry coal per square feet of grate surface per hour | pounds |
| 24 | Water evaporated per hour corrected for quality of steam | pounds |
| 25 | Equivalent evaporation per hour from and at 212 degrees | pounds |
| 26 | Equivalent evaporation per hour from and at 212 degrees per square foot of water- | |
| | heating surface | pounds |
| CAPACITY |
| 27 | Evaporation per hour from and at 212 degrees (same as Line 25) | pounds |
| 28 | Boiler horse power developed (Item 27 ÷ 34½) | boiler horse power |
| 29 | Rated capacity, in evaporation from and at 212 degrees per hour | pounds |
| 30 | Rated boiler horse power | boiler horse power |
| 31 | Percentage of rated capacity developed | per cent |
| ECONOMY RESULTS |
| 32 | Water fed per pound of coal fired (Item 19 ÷ Item 14) | pounds |
| 33 | Water evaporated per pound of dry coal (Item 20 ÷ Item 16) | pounds |
| 34 | Equivalent evaporation from and at 212 degrees per pound of dry coal (Item 21 ÷ | |
| | Item 16) | pounds |
| 35 | Equivalent evaporation from and at 212 degrees per pound of combustible [Item 21 ÷ | |
| | (Item 16 - Item 17)] | pounds |
| EFFICIENCY |
| 36 | Calorific value of one pound of dry coal | B. t. u. |
| 37 | Calorific value of one pound of combustible | B. t. u. |
| 38 | Efficiency of boiler, furnace and grate | ( | 100 × | | Item 34 × 970.4 | | ––––––––––––––––––––––––– | | Item 36 |
| ) | | per cent |
| 39 | Efficiency of boiler and furnace | ( | 100 × | | Item 35 × 970.4 | | ––––––––––––––––––––––––– | | Item 37 |
| ) | | per cent |
| COST OF EVAPORATION |
| 40 | Cost of coal per ton ofpounds delivered in boiler room | dollars |
| 41 | Cost of coal required for evaporating 1000 pounds of water from and at 212 degrees | dollars
[Pg 276] |
