Inventors:
Robert T. Moscone - Millinocket ME
International Classification:
F22B 500
Abstract:
A water-heating boiler of the tube-shell type is designed, so that the heat transfer tubes are vertically oriented. During movement of the hot combustion gases, from the large combustion tube into the smaller heat transfer tubes, the directional change in the gas, is augmented, by a changing effect of gravitational forces on the combustion gas stream. Inertia effects, in combination with velocity changes, produce a relatively high turbulence in the flowing combustion gas, with a corresponding increase in the scrubbing effect on the heat transfer tube walls.