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PROCEDURE FOR CALCULATING POWER PLANT EMISSIONS   By: Marcial T. Ocampo house 17, 2009     Calculating power launch emissions (mg SOX / Nm3, mg NOX / Nm3, mg CO / Nm3 or as ppmv SOX, ppmv NOX, ppmv CO) is sometimes difficult for workaday power plant engineers.  Carbon dioxide emissions argon usually precondition in % by peck dry or as kg carbonic acid gas per kWh generation.   Well, your favorite button technology well(p) has developed a spreadsheet lay (in MS Excel) for calculate in a breeze the common power plant emissions.   SO2 and CO2 emissions are readily calculated from fuel digest (by large number for solid and liquid fuels, by volume for gaseous fuels) and typically calculated by Orsat or other gravimetric methods.   On the other hand, NOX and CO are result of thermal dissociation of N2 into NOx at full(prenominal) electrocution temparature enchantment CO is the result of incomplete combustion due to substandard O2 or inadequate fuel an d railway line mixing.  Hence, NOX and CO are heedful using instruments and later computed as mg NOX / Nm3 or mg CO / Nm3).   (Nm3 means popular cubic meter of gas).   The basic travel followed by my model are as follows:   Basic step:   1) Input subjective gas (fuel) analysis: % volume (same as % mol), molecular weights: e.g. H2, CH4, C2H6, C3H8 ... CO2, S, O2, N2, water system moisture, ash.

    2) Convert % volume to eventual(prenominal) analysis % big money or weight (%C, %H2, % S, % O2, %N2, % water supply moisture, ash)   3) From the combustion equations;   C + O2 = CO2 S + O2 = S02 H2 + 1/2 O2! = H20   calculate the stoichiometric O2 in mols and lbs and that of N2 from air analysis.   4) victimisation the superfluous %O2 wet basis measurement in the good parcel gas, the level of wasted air ratio is computed. Use this excess air ratio to compute actual excess inner circle of O2 and N2 to compute the total flue gas (fuel + air).   5) Convert the jam to mols using their molecular weights and convert to % volume. The computed %O2 must tally with the measured %O2 wet...If you want to get a full essay, order it on our website: BestEssayCheap.com

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