Vertical heaters are either cylindrical or rectangular. They may have a radiant section only or convection and radiant sections. The radiant section tubes usually are vertical, but some cylindrical heaters have helical coils. The convection section can be either vertical or horizontal.
Low pressure boilers are steam or hot water boilers that have a maximum of 2.5 Mpa for steam and a maximum of 11 Mpa for water.
A watertube boiler (also spelled water-tube and water tube) is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which heats water in the steam-generating tubes.
A fire tube boiler is a type of boiler in which hot gases pass from a fire through one or more tubes running through a sealed container of water. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the water and ultimately creating steam.
There are two main types of green boilers used in businesses: biomass boilers and condensing boilers. Green boilers are more energy efficient and acceptable as an alternative option for coal boilers.
These boilers will be extremely clean, highly efficient and economic, by employing emerging and state-of-the-art technologies. The emissions of harmful gases like CO2, SOx, NOx and particulates will be much lower.
Low NOx boilers provide improved energy efficiency and lower emissions of nitrous oxides. Low NOx boilers significantly reduce overall nitrogen oxide (NOx) emissions and reach levels under 30 ppm.
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