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Combustion Engines

Tytuł artykułu

Measurement of flame temperature and soot amount for effective NOx and PM reduction in a heavy duty diesel engine

Autorzy Aoyagi, Yuzo 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN To reduce exhaust NOx and smoke, it is important to measure flame temperature and soot amount in combustion chamber. In diesel combustion it is effective to use the two-color method for the measurement of the flame temperature and KL factor, which is related with soot concentration. The diesel flame was directly and continuously observed from the combustion chamber at running engine condition by using a bore scope and a high-speed video camera. The experimental single cylinder engine has 2.0-liter displacement and has the ability with up to five times of the boost pressure than the naturally aspirated engine by external super-charger. The devices of High Boost, Wide Range and High EGR rate at keeping a relatively high excess air ratio were installed in this research engine in order to reduce exhaust NOx emission without smoke deterioration from diesel engines. The video camera nac GX-1 was used in this study. From observed data under the changing EGR rates, the flame temperature and KL factor were obtained by the software of two-color method analysis. The diesel combustion processes are understood well by analyzing high-speed movies of the diesel flame motion and its temperature. The NOx and smoke are mutually related to maximum flame temperature and also it is possible to reduce simultaneously both NOx and soot emissions by high EGR rate in a single cylinder diesel engine.
Słowa kluczowe
PL silnik Diesla   emisje spalin   NOx   PM   EGR   BSFC   temperatura płomienia   metoda dwubarwowa   kamera wideo  
EN Diesel engine   exhaust emissions   NOx   PM   EGR   BSFC   flame temperature   two-color method   video camera  
Wydawca Polskie Towarzystwo Naukowe Silników Spalinowych
Czasopismo Combustion Engines
Rocznik 2019
Tom R. 58, nr 4
Strony 32--39
Opis fizyczny Bibliogr. 26 poz., il. kolor., rys., wykr.
autor Aoyagi, Yuzo
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Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-4b8136a0-a1b4-4724-a377-827b15860e98
DOI 10.19206/CE-2019-405