Boiler Case Study

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The various heat losses were analyzed and a set of operational and maintenance recommendations were made to the plant management for implementation, So that efficiency of boiler can be increased.
Much like pre-heater, boiler economizers take DM demineralized water (free of impurities like CA, MG, SILICA, etc.) and transfer it to a boiler feed water rather than combustion air. AFBC/CFBC boilers fluidized bed helps in burning of fuel like coal / lignite more effectively since these particles are floating due to high pressure. Preheated water is closer to the temperature needed to the produce steam this saves energy when the preheated feed-water enters the steam drum or furnace.
The steam from the boilers at 105 Bar and temperature of 500 degree …show more content…

Refuse includes garbage and rubbish. Garbage is mostly decomposable food waste rubbish is mostly dry material such as glass, paper, cloth and wood.
Radiation from the Boiler Surfaces:
The main losses occurs during the operation of boiler are Radiation and Convection losses. The basic strategies for reducing radiation and convection losses are insulation and the control of any airflow over the surface of a boiler are the main technique used for the reduction of radiation and convection losses. The lower heat losses and surface temperature can be reduced to its extent level by giving proper insulation. Shielding an industrial boiler from outdoor winds and indoor drafts will prevent heat from being lost due to air flow over the surface of the boiler.
Heat in Atomizing Steam:
When high temperature steam is reduced in pressure it becomes super-heated steam. The temperature of super-heated steam is higher than its saturation temperature and the steam is dry. Superheated steam is hotter than the temperature it takes to boil water at that pressure and is 100% dry all the moisture has been converted into

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