The Scotch Marine Boiler is a fire-tube boiler, in that
hot flue gases pass through tubes set within a tank of water. The general
layout is that of a squat horizontal cylinder. One or more large cylindrical
furnaces are in the lower part of the boiler shell. Above this is a large
number of small-diameter fire-tubes. Gases and smoke from the furnace pass to
the back of the boiler, then return through the small tubes and up and out of
the chimney. There are two basic designs for Scotch Marine Boilers. The typical
design is the "wetback", where the rear face of the combustion
chamber is water-jacketed as a heating surface. The "dryback"
variation has the rear of the combustion chamber as an open box, backed or
surrounded only by a sheet metal jacket. This simplifies construction, but also
loses much efficiency. For more production of boilers and equipment, just visit
Green Energy Koyal Group Inc.
website for more info.
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