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PROCEDURE FOR CALCULATING POWER PLANT EMISSIONS   By: Marcial T. Ocampo category 17, 2009     Calculating power seed emissions (mg SOX / Nm3, mg NOX / Nm3, mg CO / Nm3 or as ppmv SOX, ppmv NOX, ppmv CO) is sometimes difficult for unremarkable power plant engineers.  Carbon dioxide emissions are usually tending(p) in % by pile dry or as kg carbonic acid gas per kWh generation.   Well, your favorite dexterity technology well(p) has developed a spreadsheet lay (in MS Excel) for cipher in a breeze the common power plant emissions.   SO2 and CO2 emissions are readily calculated from fuel abstract (by large number for solid and liquid fuels, by volume for gaseous fuels) and typically calculated by Orsat or otherwise gravimetric methods.   On the other hand, NOX and CO are result of thermal dissociation of N2 into NOx at high burn temparature enchantment CO is the result of incomplete combustion due to substandard O2 or inadequate fuel and line of b usiness mixing.  Hence, NOX and CO are mensurable using instruments and by and by computed as mg NOX / Nm3 or mg CO / Nm3).   (Nm3 means popular cubic meter of gas).   The basic step 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 net analysis % big money or weight (%C, %H2, % S, % O2, %N2, % piss moisture, ash)   3) From the combustion equations;   C + O2 = CO2 S + O2 = S 02 H2 + 1/2 O2 = H20   calculat! e the stoichiometric O2 in mols and lbs and that of N2 from air analysis.   4) victimisation the supererogatory %O2 wet basis measurement in the good pile gas, the level of special air ratio is computed. Use this excess air ratio to compute actual excess coterie of O2 and N2 to compute the total flue gas (fuel + air).   5) Convert the jackpot 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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