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Radiation Heat Transfer In Wet Back Type Boilers

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A. Specialised boilers and furnaces: (a) Ignifluid/fluidized bed boilers (b) Flameless furnaces and continuous pusher type furnaces (c) Fluidized bed type heat treatment furnaces (d) High efficiency boilers (thermal efficiency higher than75 per cent in case …

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Depreciation under the Income Tax Act, 1961

Aug 10, 2021 · (c) Fluidized bed type heat treatment furnaces (d) High efficiency boilers (thermal efficiency higher than 75 per cent in case of coal fired and 80 per cent in case of oil/gas fired boilers) B. Instrumentation and monitoring system for monitoring energy flows: 40% (a) Automatic electrical load monitoring systems (b) Digital heat loss meters

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Depreciation rates - Income Tax Department

A. Specialised boilers and furnaces: (a) Ignifluid/fluidized bed boilers (b) Flameless furnaces and continuous pusher type furnaces (c) Fluidized bed type heat treatment furnaces : 80. 80. 40 (d) High efficiency boilers (thermal efficiency higher than 75 per cent in case of coal fired and 80 per cent in case of oil/gas fired boilers)

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Depreciation rates as per I.T Act for most commonly used

(ix) Energy saving devices, being-A. Specialised boilers and furnaces:(a) Ignifluid/fluidized bed boilers(b) Flameless furnaces and continuous pusher type furnaces(c) Fluidized bed type heat treatment furnaces(d) High efficiency boilers (thermal efficiency higher than 75 percent in case of coal fired and 80 per cent in case of oil/gas fired

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Boilers : Types and Classification

The posterior part is exposed to the atmosphere. This leads to the increased radiation losses, as the radiant heat is lost to the atmosphere instead of going to the water as in wet back boilers. Earlier generation boilers used to be dry back. Thus wet back boilers …

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Boiler - Wikipedia

Heat sources. In a fossil fuel power plant using a steam cycle for power generation, the primary heat source will be combustion of coal, oil, or natural gas.In some cases byproduct fuel such as the carbon monoxide rich offgasses of a coke battery can be burned to heat a boiler; biofuels such as bagasse, where economically available, can also be used.. In a nuclear power plant, boilers called

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Ask NASA Climate | Articles – Climate Change: Vital Signs

Nov 08, 2021 · And a coating invented to protect spacecraft during the extreme heat of atmospheric entry improves the efficiency of incinerators, boilers, and refractories, ovens, and more. NASA research and innovations have led to many environment-saving spinoffs, and this graphic highlights a few.

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Boiler (power generation) - Wikipedia

A boiler or steam generator is a device used to create steam by applying heat energy to water.Although the definitions are somewhat flexible, it can be said that older steam generators were commonly termed boilers and worked at low to medium pressure (7–2,000 kPa or 1–290 psi) but, at pressures above this, it is more usual to speak of a steam generator.

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Heating, ventilation and air conditioning

boilers, cast iron boilers, forced/ natural/induced boilers and condensing boilers. Modern condensing boiler systems offer a substantial efficiency improvement from traditional system types as they recover heat previously lost in the exhaust. Depending on the existing system and factors such as fuel type, age and condition of the incumbent

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