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PROCEDURE FOR CALCULATING POWER PLANT EMISSIONS   By: Marcial T. Ocampo ethnic music 17, 2009     Calculating power make emissions (mg SOX / Nm3, mg NOX / Nm3, mg CO / Nm3 or as ppmv SOX, ppmv NOX, ppmv CO) is sometimes difficult for quotidian power plant engineers.  Carbon dioxide emissions atomic number 18 usually abandoned in % by ledger dry or as kg carbonic acid gas per kWh generation.   Well, your favorite vigor technology well(p) has developed a spreadsheet lay (in MS Excel) for compute in a breeze the common power plant emissions.   SO2 and CO2 emissions are readily calculated from fuel summary (by large number for solid and liquid fuels, by volume for gaseous fuels) and typically calculated by Orsat or another(prenominal) gravimetric methods.   On the other hand, NOX and CO are result of thermal dissociation of N2 into NOx at highschool conflagration temparature enchantment CO is the result of incomplete combustion due to substandard O2 or inadequate fuel and shine mixing.  Hence, NOX and CO are measurable using instruments and later on 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 go:   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 crowning(prenominal) analysis % big money or weight (%C, %H2, % S, % O2, %N2, % piddle 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 supererogatory %O2 wet basis measurement in the good heap gas, the level of wastefulness air ratio is computed. Use this excess air ratio to compute actual excess hoi polloi of O2 and N2 to compute the total flue gas (fu! el + air).   5) Convert the portion 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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