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The invention of the recovery boiler by G.H. Tomlinson in the early 1930s was a milestone in the advancement of the kraft process. [1] Recovery boilers are also used in the (less common) sulfite process of wood pulping; this article deals only with recovery boiler use in the kraft process.
A steam boiler evaporates liquid water to form steam, or gaseous water, and requires frequent replenishment of boiler feedwater for the continuous production of steam required by most boiler applications. Water is a capable solvent, and will dissolve small amounts of solids from piping and containers including the boiler.
Boiler design is the process of designing boilers used for various purposes. The main function of a boiler is to heat water to generate steam. Steam produced in a boiler can be used for a variety of purposes including space heating, sterilisation, drying, humidification and power generation. The temperature or condition of steam required for ...
The field-tube boiler uses downward-pointing vertical tubes and these also have an internal tube. This extra tube segregates the flow into a central cold downcomer and an upwelling outer flow of heated water and boiling steam. In the thimble tube, there is no such segregation and so boiling is a random process with flow back and forth along the ...
The Chemrec process for gasification of black liquor from the chemical pulp industry offers to increase the yield of high-value energy products from 15 to 16% in modern recovery boilers to 22–23% for the BLG electricity concept (BLGCC) or to 55% for the BLG bio fuel concept (BLGMF), with 90+% green-house gas reduction.
The Westinghouse Combustion Turbine Systems Division (CTSD), part of Westinghouse Electric Corporation's [1] Westinghouse Power Generation [2] group, was originally located, along with the Steam Turbine Division (STD), in a major industrial manufacturing complex, referred to as the South Philadelphia Works, in Lester, Pennsylvania near to the Philadelphia International Airport.
A Velox boiler is a turbocharged, forced circulation, water-tube boiler which utilises an axial flow compressor and a gas turbine. Velox (Latin: "fast") boilers, also known as Velox steam generators, were developed in the early 1930s by the Brown Boveri Company (BBC) of Switzerland. [ 1 ]
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.