30 which are being enforced in a growing number ofcouncries. Nacural gas as fuel in engines reduces .the emissions of exhaust gases. Especialy using in diesel engines provides reducrion ofNOx emissions wit!ı reducing combustion temperarure. The emissions oflead oxides and lead halogeni des will be stopped by using narnral gas in spark ignition engines. Most of the known merhods of NOx concrol for narural gas engines that are in use, are being conside red in chis paper. Autlıors present an overview of emission chracceristics of natura] gas engines and experimenral results. The paper describes experİences with natura] gas engine in different air-fuel ratİos and warer addirion to the inler air. REFERENCES [l] Bayhan, M., "Doğal Gazın Normal Dizel Motorlarında Kullanılması" Mühendis ve Makina dergisi, sayı 362, Mart 1990. [2] Kaiser, R. M., "On Site Tescing ofLower NOx Emissions Dua! Fuel Series Engine", Interııal TDI Documenr,June 1986. [3] Schoubye, P., "Reducrion of NOx Emissions From Large Diesel Engines", ÖMAC Conference, Warsaw 1987. [4] Zablocki, M., "Dwupalinova Silniki Zapronem Samoczynnym Napadzane Paliwem Uchrym; Gazowym", Wydawnicrwa Nanhowo-Techniczne, Warszawa, 1969. YILDIZ MAKİNA ve İNŞAAT SANAYİİ LTD. ŞTİ. Mak. Müh. Muhterem Karabaş ve Ort. İMALATLARIMIZ : • Kalorifer Kazanları TS -497 uygunluk belgeli • Eşanjörler TS - 1996 uygunluk belgeli TAAHHÜT • Yakıt Tankları TS - 712 uygunluk belgeli • Boyler TS - 736 uygunluk belgeli • Hidrofor Tankları TS - 1911 uygunluk belgeli • Su yumuşatma cihazları TSEK uygunluk belgeli • Su filtreleri - Kıl tutucular lsı Merkezleri - Klima, Soğutma, Otomatik kontrol Tankları Tel: 354 51 34 - 354 55 29 57. Sok. No.68 Ostim , ANKARA CCPIMaN TSKNİK ENDÜSTRİ MALZEMELERİ SANAYİ ve TİCARET Brülör, Pompa, Vana, Hidrofor, Boru, Fitings,PVC, izolasyon, Armatür, Vitrifiye, Seramik, Kazan, Eşanjör,Aparey, Termosifon, Jeneratör, Radyatör, Elektrik Motoru, Kompresör KALORİFER - BUHAR - SIHHİ TESİSAT-OTOMATİK KONTROL GEMİ ve FABRİKA MALZEMELERİ ALARKO, Thyssen, Buderus, Baymak,ECA-Serel, Vitra - Artema, Toprak, PDK, Çanakkale Seramik,MAS, Asvan, Duyar, Termo, Klinger, ONTROLHoneywell,Samson, Enelsan, Zentra, Sauter, İzocam,Pimaş, Borusan, Haymak, SARMAK, Demirdöküm-Komsan,ABS Pumps, ITT Mc Donnell & MiLLER Lülecihendek Cad. No.63 Karaköy/İSTANBUL Tel : 151 83 88 (3 Hat) Fax : 151 83 90 I' - 1
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