Mechanical draft : a practical treatise / B.F. Sturtevant Co. ; edited by Walter B. Snow.

Date:: 1901

Credit: Mechanical draft : a practical treatise / B.F. Sturtevant Co. ; edited by Walter B. Snow. Source: Wellcome Collection.

17/410

$CHAPTER VI. EFFICIENCY OF STEAM BOILERS. Measure of Efficiency Rating of Steam Boilers Radiation and Convection of Furnace Heat Distribution of the Heat of Combustion .... Disposition of Heat in Steam Boilers Sources of Efficiency Flue Feed-Water Heaters or Economizers . Air Heaters or Abstractors ...... Increased Tube-Heating Efficiency . . . . , Mechanical Stokers ........ Powdered-Fuel Furnaces ....... Influence of Mechanical Draft on the Ultimate Efficiency of Steam Boilers . Page. 95 98 102 104 106 107 112 116 118 121 123 I 2\ CHAPTER VII. RATE OF COMBUSTION. Rate of Combustion ..... Relation of Grate Surface to Heating Surface Economy of High Rates of Combustion Thickness of Fire ..... 130 131 132 140 CHAPTER VIII. DRAFT. Definition ........ Relation of Pressure and Velocity Efflux of Air ....... Influence of Form of Orifice .... Work Required to Move Air .... Movement of Air in Pipes .... Measurement of Draft ...... Conditions of Boiler Draft .... Relation of Draft and Rate of Combustion . Leakage of Air ...... 141 141 144 1 5i 152 1 55 159 165 169 177 Principles of Chimney Draft Chimney Design Efficiency of Chimney • CHAPTER IX. CHIMNEY DRAFT. 179 l8l 191$

Mechanical draft : a practical treatise / B.F. Sturtevant Co. ; edited by Walter B. Snow.

Licence and re-use

Contents