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Gaggia Internazionale 2 group espresso machine, c.1950 Model "Classica", 1948 Gaggia Classic, 10/2010 Gaggia is an Italian manufacturer of coffee machines , especially espresso machines , in addition to small kitchen appliances .
Later boilers kept the cylindrical flues separate and placed the tubes within them. gothic boiler: an early locomotive boiler, where the outer firebox was particularly large and served as the steam dome, often highly decorated with polished brass. These were popular for early railway locomotives, from 1830 to 1850.
In a residential setting, an electric boiler is often used as a backup to a house's heating system. During the colder months, heating and hot water is used more frequently. This type of boiler will provide additional heating and hot water to a home. [3] Some types of boilers aren't used for heating, but for other purposes.
A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, [1] [page needed] [2] [page needed] including water heating, central heating, boiler-based power generation, cooking, and sanitation.
Where hot-water space heating boilers are installed, domestic hot water cylinders are usually heated indirectly by primary water from the boiler, or by an electric immersion heater (often as backup to the boiler). In the UK these vessels are called indirect cylinders and direct cylinders, respectively. Additionally, if these cylinders form part ...
Revere Ware double boilers and steamers come in three variations. The first (marked (1) below) is an insert, which nestles into the pan, supported by a lip and two small "ears", or flairs at the mouth of the insert. This variety remains almost entirely within the heating utensil while in use.
The square-topped Belpaire firebox allows steam to be conveniently collected at its top corners and therefore locomotives with Belpaire fireboxes often dispensed with a dome, for example express engines such as the GWR Castle Class (the large brass boiler fitting on a Castle is the distinctive GWR safety valve cover, not a dome).
FBC smoke tube boiler. Fluidized bed combustion (FBC) is a combustion technology used to burn solid fuels.. In its most basic form, fuel particles are suspended in a hot, bubbling fluidity bed of ash and other particulate materials (sand, limestone etc.) through which jets of air are blown to provide the oxygen required for combustion or gasification.