List: Boilers

by likeorhate

•  Double boiler

  A double boiler is a stove top apparatus used to cook delicate sauces such as beurre blanc or to melt chocolate without burning or seizing. It consists of an upper vessel containing the substance to be cooked which is situated above a lower pot of water. When brought to a boil, the steam released in the lower pot provides heat against the bottom of the upper one. The upper vessel must fit over tightly, or else steam may escape and affect the cooking substance.

  

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•  Boiler

  A boiler is a closed vessel in which water or other fluid is heated. The heated or vaporized fluid exits the boiler for use in various processes or heating applications.

  

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•  Water heating

  Water heating is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have many uses. Domestically, water is traditionally heated in vessels known as water heaters, kettles, cauldrons, pots, or coppers.

  

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•  Fire-tube boiler

  A fire-tube boiler is a type of boiler in which hot gases from a fire pass through one or more tubes running through a sealed container of water. The heat energy from the gases passes through the sides of the tubes by thermal conduction, heating the water and ultimately creating steam.

  

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•  Water-tube boiler

  A water tube boiler is a type of boiler in which water circulates in tubes heated externally by the fire. Water tube boilers are used for high-pressure boilers. Fuel is burned inside the furnace, creating hot gas which heats water in the steam-generating tubes. In smaller boilers, additional generating tubes are separate in the furnace, while larger utility boilers rely on the water-filled tubes that make up the walls of the furnace to generate steam.

  

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•  Superheater

  A superheater is a device used to convert saturated steam or wet steam into dry steam used for power generation or processes. There are three types of superheaters namely: radiant, convection, and separately fired. A superheater can vary in size from a few tens of feet to several hundred feet (a few meters or some hundred meters). A radiant superheater is placed directly in the combustion chamber. A convection superheater is located in the path of the hot gases.

  

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•  Pot boiler

  A pot boiler is an externally-heated simple enclosure in which water is heated to produce steam. They can also use a heated stone when used in cooking. When the stone gets hot enough, it gets put in the pot to boil the contents. Usually, they are found in archeological sites, near fire or in inner walls where they were reused as building material.

  

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•  Boiler explosion

  Boiler explosions are catastrophic failures of boilers. As seen today, boiler explosions are of two kinds. One kind is over-pressure in the pressure parts of the steam and water sides. The second kind is explosion in the furnace. Boiler explosions of pressure parts are particularly associated with steam locomotives. Locomotive boilers are of a construction with a very small hand-fed furnace, a boiler barrel containing boiling water under pressure, and tubes containing hot gases from the fire.

  

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•  Steam generator (nuclear power)

  Steam generators are heat exchangers used to convert water into steam from heat produced in a nuclear reactor core. They are used in pressurized water reactors between the primary and secondary coolant loops. In commercial power plants steam generators can measure up to 70 feet in height and weigh as much as 800 tons. Each steam generator can contain anywhere from 3,000 to 16,000 tubes, each about three-quarters of an inch in diameter.

  

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•  Boiler feedwater pump

  A boiler feedwater pump is a specific type of pump used to pump feedwater into a steam boiler. The water may be freshly supplied or returning condensate produced as a result of the condensation of the steam produced by the boiler. These pumps are normally high pressure units that use suction from a condensate return system and can be of the centrifugal pump type or positive displacement type.

  

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•  Condensing boiler

  A condensing boiler utilises the latent heat of water produced from the burning fuel, in addition to its sensible heat increase its efficiency.

  

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•  Heat-only boiler station

  A heat-only boiler station generates thermal energy in the form of hot water for use in district heating applications. Unlike combined heat and power installations which produce thermal energy as a by-product of electricity generation, heat-only boiler stations are dedicated to generating heat.

  

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•  Pulverized coal-fired boiler

  A pulverized coal-fired boiler is an industrial or utility boiler that generates thermal energy by burning pulverized coal (also known as powdered coal or coal dust). This type of boiler dominates the electric power industry, providing steam to drive large turbines. Pulverized coal provides the thermal energy which produces about 50% of the world's electric supply.

  

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•  Steam generator (railroad)

  Steam generator is the term used to describe a type of boiler used to produce steam for climate control and potable water heating in railroad passenger cars. The output of a railroad steam generator is low pressure, saturated steam that is passed through a system of pipes and conduits throughout the length of the train. Steam generators were developed when Diesel locomotives started to replace steam locomotives on passenger trains.

  

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•  Electric water boiler

  An electric water boiler, also called an electric dispensing pot, electric water heater, electric water urn, or electric kettle, is a consumer electronics small appliance used for boiling water and possibly maintaining it at a constant temperature. It is typically used to provide an immediate source of hot water for making tea, hot chocolate, ramen noodles, or baby formula, or any other household use where clean hot water is required.

  

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•  Pop pop boat

  A pop-pop boat is a toy with a very simple heat engine without moving parts, powered by a candle or oil burner. The name comes from the noise the boats make. Other names are putt-putt boat, crazy boat, flash-steamer, hot-air-boat, pulsating water engine boat. Around the world they may be called Can-Can-boot, Knatterboot, toc-toc, Puf-Puf boat, Poof Poof craft, Phut-Phut, or Pouet-Pouet.

  

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•  Franco-Crosti boiler

  The Franco-Crosti boiler is a type of boiler used for steam locomotives. It was designed in the 1930s by Attilio Franco and Dr Piero Crosti, two engineers working for the Ferrovie dello Stato (FS), the Italian state railway.

  

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•  Philadelphia (UK) boiler explosion 1815

  On 31 July 1815, in Philadelphia, County Durham, England, an early experimental railway locomotive, Brunton's Mechanical Traveller blew up. This engine, also known as the Steam Horse, ran on four wheels but was pushed by mechanical feet. This was both the first recorded boiler explosion and the first railway accident causing major loss of life, as 16 people were killed [some sources state 13].

  

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•  Leeds Forge Company

  The Leeds Forge Company manufactured corrugated furnaces for marine boilers and later, pressed steel railway vehicles, in Leeds, England.

  

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•  Steam drum

  A steam drum is a standard feature of a water-tube boiler. It is a reservoir of water/steam at the top end of the water tubes. The drum stores the steam generated in the water tubes and acts as a phase-separator for the steam/water mixture. The difference in densities between hot and cold water helps in the accumulation of the "hotter"-water/and saturated-steam into the steam-drum.

  

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•  Jetstream furnace

  Jetstream furnaces (later Tempest wood-burning boilers), were an advanced design of wood-fired water heaters conceived by Dr. Richard Hill of the University of Maine in Orono, Maine, USA. The design heated a house to prove the theory, then with government funding become a commercial product.

  

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•  Boiler feedwater

  Boiler feedwater is water used to supply ("feed") a boiler to generate steam or hot water. At thermal power stations the feedwater is usually stored, pre-heated and conditioned in a feedwater tank and forwarded into the boiler by a boiler feedwater pump.

  

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•  Internally riffled boiler tubes

  Internally riffled boiler tubes are used to evaporate water into steam inside boilers of thermal power plants. Because of their internally riffled shape, they are more efficient. The boiling crisis takes place later, thus allowing for greater heat transfer between the pipe and the fluid inside the pipe. Costs of this type of tube are generally higher than plain tubes. Current research into these tubes is being conducted due to their potential to increase efficiency of power plants.

  

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•  Wet bottom furnace

  A wet-bottom furnace or wet-bottom boiler is boiler that contains a wet bottom furnace. It is a kind of boiler used for pulverised fuel firing. In wet bottom boiler the bottom ash is kept in a molten state and tapped off as a liquid. Wet bottom boiler slag is a term that describes the molten condition of the ash as it is drawn from the bottom of the slag-tap or cyclone furnaces.

  

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•  Recovery boiler

  Recovery boiler is the part of Kraft process of pulping where chemicals for white liquor are recovered and reformed from black liquor, which contains lignin from previously processed wood. The black liquor is burned, generating heat, which is usually used in the process or in making electricity, much as in a conventional steam power plant. The invention of the recovery boiler by G.H. Tomlinson in the early 1930s, was a milestone in the advancement of the kraft process.

  

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