28 ting the maximum power oucput. N(NoSnCsRel)e:ctive catalytic reduction Tg ihnies es yx shraeums ts ihnar voe nboenerne aucstei vdet go acsofnovr eur rs ee ni n pn er e es sxuhrai zuisnr gboe i lf wu eel l-lrsi .c Ihn or fh si st os yi cshr ei ommeent gr iic befo N de ü s p r el amt i ne tuaml c oa tr apl ya sl lr a. dTi hu emc aa tnadl yrsht so idni du mu . nitrxogies nreadnudcecdarbbyoncadribooxnidme.onoxide into Nü + Cü = 1/2 N2 + Cü2 Nü 2 + 2Cü = 1/2 N2 + 2Cü2 Tnahceurtaeml gpaesraetnugrienoeffthe exhausr from rhe or Nü x reducrion is abouc 430-650° rt aa ni ng ae os ifganbi of ıucca n3 C r 7 . e 1 Tf fehcer icvaet anleyssst wwiirl hl mi n aeihn e °C to 815°C. Pracrical at uprpal !i cga eaiso ne nogfi enheiss se yhsaere mh a ivse l ivme ri yt e dl i me oi tnead onxeys ,g ei nndi nu de he eci ruer bx ho cahuas rr gs eerde aamn.dS un ac hc uernagl liy aspirared four eyde engines. Exhaust gas recirculation (EGR): eTnhgi si nseys sat ne md ahpapsl ibc ae reend ui sne dn a itnu raau! cgoams eone igvi e nes. Exhause gas tor decreases ehe rfeocrimrcaueliaoenioonfinNroüehe mo du un rc i no gf erxhhe ar mu sae l gt ae ms rpeecriar cc uu rl ea .e i Iofne hex e x b c a y e m e r d o es ehe amounr ofexcess oxygen, the resulring fduueclr-i roinc ho fcCo üm ba nu ds r fi ou enl icno cnrseuams eps e i eohne. Cpor oo lcionmg paonnde nfri sl r eerhi na eg ceohue l de x bh ea ups co ereenme ioavl el ys harmfu gine deltotonaethioenencgoinndeieainodn.reduces ehe enCTyhae ncuyarni curaicc iadc i(dRiAs Pc oRmEbNi nOexd) :w i e h exhafulsoewgraesacitnorafn elecrrically heared quarcz or reducing Nüx emissions. Nr e ai tcrtiocroexeimd ep reer da tuucreei os na bwoavsee4v i2d7e n t a r flow °C. Increasing ehe exhause gas de concenrraeion lowered echaerbroenqumiroendorxeiap ce tr oa rc ue reemr pa ne rgaet uforre saingdniifnıccarenar sNedüehe eemctieoNn. It is possible for this process to x p re ro d d u u c 2ü, NH3 and HCN. In addition, some ce ey da n. Ci c yaacni di c gaacsi dc ogualsd i sp avsesr ye htrooxui gc ht ou rnar de ai sch and barleys. EE lleeccetrroocchheemmi ciaclacl eccehlni o(lIoGgRy , ) e:m b o d i e d i n eohxei dIeGs Re o pnr ioc cr eo sgs e, ni s auns eodx ty og er end, ua cned nrihe reor ge be yn pc oo nwrer roel dNe ün gxi neems . i sEs li eocne sr ofcr ho me m ni caatlu rr ea !a cgr oa sr wm iieche lpeoc rr rooulsy roexsyrgeec lnu cieosn Nc oün d u c e i v e c e r a x. Conclucror s clrea. bAi lni zeeclle czri rroc oc anri aa l, ycser rmi aa, yo rbbe irsemquuri rhe col xrin sriegdnuicfıecaNnür oxinygeexnh.ausr gases containing TInhrehrims saylsrDemeNaOmxm: onia can be usecl duce Nü to rex wiehout ehe aicl ofa caralyst. Flue gas remperatures over 870° quired for effeccive Nü C are re x reclucrion. Four er ay ldl ea inr -a ftuu use gas eem e ra l p ! r e g a r e a a i s o r u e o n r f e g s s i n r a o e r i e s c o h h p i i o g e m h ra e e e r i r n a r g i n c a, rexohvaec mal DeNÜ l rherx coulcl become applicable. NOp ü timizing engine: r e c l uxc eedmbi sys ioopncsi mi ni ze ihnege ex nh ga ui ns re goapsecraa ne i nbge paramerers wirh increasing air-fuel rario oannds irneNrarücling ignirion eiming. Reducti x emissions are associaeed wieh some increase in f mo l di zeirn egnegni ngei ns .e i s pu erli mc oanr si luyınappcpi ol inc a. bül ep rcio l iU s n r i r e n h a j i e s (c s r N y e s d ü r ex i m n O r o a U n h T a o q ) r : u eexohuas ussorl.uUr i or ena orfeuarcecas wd ei sr h, nni ti er rooggeennaonxdi dwe as rteor .f oErf mfe ccrai vr be oNn üd i o x i cluceions have been clemonscrarecl at exxhrae usr eemperarures of 590-1090 °C. U rea c esn'e require a caralysr for Nü lox reclucrion. AAllccoohhoolla:ddieion to ehe inler air will be redusuicnegclaNlcoühxoleamissions. An advanrage of s a subsriture for clecreasing ar emg ouul anrre col f' enma ti susriao! ngpa sr ouds ue dc r, si sa nr ec ld ouxc irci loens oo ff nirrogen in exhausc gases. 4. CONCLUSIONS To fheenpgrinoesps emccasy fboer slrarnodngblays e d a p p l i c a r i o n s .aff ir abilicy ro meer emissionecrreegdublayrirohnes
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