boiler flue gas temperature calculation industrial gas

boiler flue gas temperature calculation industrial gas

  • How can i calculate the Temperature of the Flue Gases emitted from a Furnace for a specified Fuel to Air Ratio.? I am working on the Effect of the Fuel to Air Ratio on the Efficiency of Furnace.

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  • Flue gases are produced when coal, oil, natural gas, wood or any other fuel is combusted in an industrial furnace, a power plant’s steam-generating boiler, or other large combustion device. Boiler Calculations – KTH. 2003-10-30 · 1 Steam/water diagrams used in boiler calculations Temperature-heat (T-Q) diagram The T-Q diagram is a useful

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  • Calculate Available Heat for Natural Gas Fuel 2 Exhibit 1: Definition of available heat Flue gas temperature – Higher flue gas temperature increase the heat content of flue gases and lowers the amount of heat remaining in the heating system.

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  • CO2 and the balance to form CO. The temperature of combustion air, fuel and water entering the boiler is assumed at 25oC. The flue gas leaves the boiler at 300oC (all the water formed will be vapour). In addition, a substantial amount of heat is also lost through the boiler wall and other uncounted sources.

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  • reference for flue gas calculation; the standard describes the basic principles and defines empirical formulas for flue gas calculation. This is not immediately apparent or obvious from the title: „Water-tube boilers and auxiliary installations - Part 15: Acceptance tests‟.

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  • Related Topics . HVAC Systems - Heating, ventilation and air conditioning systems - design and dimensions; Combustion - Boiler house topics - fuels like oil, gas, coal, wood - chimneys, safety valves, tanks - combustion efficiency; Related Documents . Fuels - Combustion Air and Flue Gases - Combustion air and flue gas for common fuels - coke, oil, wood, natural gas and more

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  • Heat losses in the flue gases. This is probably the biggest single source of heat loss, and the Engineering Manager can reduce much of the loss. The losses are attributable to the temperature of the gases leaving the furnace. Clearly, the hotter the gases in the stack, the less efficient the boiler. The gases may be too hot for one of two reasons:

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  • measurements indicate an excess air level of 44.9% with a flue gas minus combustion air temperature of 400°F. From the table, the boiler combustion efficiency is 78.2% (E1). Tuning the boiler reduces the excess air to 9.5% with a flue gas minus combustion air temperature of 300°F. The boiler combustion efficiency increases to 83.1% (E2).

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  • Net stack temperature is the difference between the flue gas temp and the ambient temperature. Although it's tempting to minimize ambient temperature with hopes of lowering flue gas temp, a 40 degree alteration in ambient temperature can affect industrial boiler efficiency by one percent or more.

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  • Related Topics . Combustion - Boiler house topics - fuels like oil, gas, coal, wood - chimneys, safety valves, tanks - combustion efficiency; Related Documents . Air Flow and Velocity due to Natural Draft - Air flow - volume and velocity - due to stack or flue effect caused by indoor hot and outdoor cold temperature difference; Boiler Heat Load and Chimney Area - Boiler capacity and chimney area

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