TABLE

_Showing Amount of Sediment collecting in a steam boiler when

evaporating 6,000 gallons per week, of 58,318 grains each._

-----------------------+--------------------

When a gallon of feed |

water evaporated to |The amount of solid

dryness at 212 degrees | matter collecting

Fahrenheit, leaves of |in boiler per week

solid matter in grains:| will be:

-----------------------+---------+----------

Grains. | Pounds. | Ounces.

1 | | 13.714

2 | 1 | 11.428

3 | 2 | 9.143

4 | 3 | 6.857

5 | 4 | 4.571

6 | 5 | 2.285

7 | 6 |

8 | 6 | 13.714

9 | 7 | 11.428

10 | 8 | 9.142

15 | 12 | 13.713

20 | 17 | 2.284

25 | 21 | 6.855

30 | 25 | 11.426

35 | 30 |

40 | 34 | 4.571

45 | 38 | 9.143

50 | 42 | 13.714

55 | 47 | 2.285

60 | 51 | 6.857

65 | 55 | 11.428

70 | 60 |

75 | 64 | 4.571

80 | 68 | 9.143

85 | 72 | 13.714

90 | 77 | 2.285

95 | 81 | 6.857

100 | 85 | 11.428

110 | 94 | 4.571

120 | 102 | 13.714

130 | 111 | 6.857

140 | 120 |

150 | 128 | 9.142

160 | 137 | 2.285

170 | 145 | 11.428

180 | 154 | 4.571

-----------------------+---------+----------

Maxims and Instructions for the Boiler Room Useful to Engineers, Firemen & Mechanics; Relating to Steam Generators, Pumps, Appliances, Steam Heating, Practical Plumbing, etc. · 第 156 / 328 题