Year 2018, Volume 38 , Issue 2, Pages 99 - 110 2018-10-31

INVESTIGATION OF THE EFFECTS OF OCTANE NUMBER ON COMBUSTION CHARACTERISTICS AND ENGINE PERFORMANCE IN A HCCI ENGINE
HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ

Serdar HALİS [1] , Çağatay NACAK [2] , Hamit SOLMAZ [3] , Emre YILMAZ [4] , Serdar YÜCESU [5]


In this study, the effects of reference fuels with different research octane numbers (RON0, RON20 and RON40) on engine performance were investigated at 40 °C intake air temperature and full load in a four cylinders HCCI engine. The operating range for the HCCI engine has been determined and the brake specific fuel consumption maps for each fuel have been created. Combustion characteristics were investigated at a constant engine speed of 1000 rpm. The heat release rate and in-cylinder pressure lambda values of λ=2.15 were obtained for the engine operating in natural-aspirated mode. As the number of octane increases, the engine load increases but the operating range decreases. The lowest BSFC values were obtained at 238.7 g/kWh for RON0, 251.3 g/kWh for RON20 and 276.6 g/kWh for RON40. It was observed that there was a delay in the start of combustion as the number of octane increased. The best CA50 value was obtained 6 °CA from aTDC with RON40 because of the slower burning than RON0 and RON20.
Bu çalışmada, HCCI modundaki dört silindirli bir motorda 40 °C giriş hava sıcaklığında ve tam gaz kelebeği açıklığında farklı araştırma oktan sayısına (RON0, RON20 ve RON40) sahip referans yakıtların motor performansı ve yanma karakteristikleri üzerindeki etkileri incelenmiştir. HCCI motor için çalışma aralığı belirlenmiş ve her bir yakıt için fren özgül yakıt tüketimi (FÖYT) haritaları oluşturulmuştur. Yanma karakteristikleri 1000 rpm sabit motor hızında incelenmiştir. Doğal emişli olarak çalıştırılan motorda λ=2.15 değerinde ısı yayılım oranı ve silindir içi basınç değerleri analiz edilmiştir. Oktan sayısı arttıkça motor yükünün de arttığı ancak çalışma aralığının azaldığı görülmüştür. En düşük özgül yakıt tüketimi değerleri RON0 için 238.7 g/kWh, RON20 için 251.3 g/kWh ve RON40 için 276.6 g/kWh olarak elde edilmiştir. Oktan sayısının artmasıyla yanma başlangıcında gecikme olduğu gözlenmiştir. En iyi CA50 değeri, RON0 ve RON20' ye göre daha yavaş yanma olması nedeniyle RON40 ile üst ölü noktadan 6 °KA sonra elde edilmiştir.
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Primary Language tr
Subjects Engineering, Mechanical
Journal Section Research Article
Authors

Author: Serdar HALİS
Institution: GAZİ ÜNİVERSİTESİ, TEKNOLOJİ FAKÜLTESİ
Country: Turkey


Author: Çağatay NACAK
Institution: GAZİ ÜNİVERSİTESİ, TEKNOLOJİ FAKÜLTESİ
Country: Turkey


Author: Hamit SOLMAZ
Institution: GAZİ ÜNİVERSİTESİ, TEKNOLOJİ FAKÜLTESİ
Country: Turkey


Author: Emre YILMAZ
Institution: HAKKARİ ÜNİVERSİTESİ
Country: Turkey


Author: Serdar YÜCESU
Institution: GAZİ ÜNİVERSİTESİ, TEKNOLOJİ FAKÜLTESİ
Country: Andorra


Dates

Publication Date : October 31, 2018

Bibtex @research article { isibted780494, journal = {Isı Bilimi ve Tekniği Dergisi}, issn = {1300-3615}, address = {}, publisher = {Türk Isı Bilimi ve Tekniği Derneği}, year = {2018}, volume = {38}, pages = {99 - 110}, doi = {}, title = {HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ}, key = {cite}, author = {Halis, Serdar and Nacak, Çağatay and Solmaz, Hamit and Yılmaz, Emre and Yücesu, Serdar} }
APA Halis, S , Nacak, Ç , Solmaz, H , Yılmaz, E , Yücesu, S . (2018). HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ . Isı Bilimi ve Tekniği Dergisi , 38 (2) , 99-110 . Retrieved from https://dergipark.org.tr/en/pub/isibted/issue/56344/780494
MLA Halis, S , Nacak, Ç , Solmaz, H , Yılmaz, E , Yücesu, S . "HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ" . Isı Bilimi ve Tekniği Dergisi 38 (2018 ): 99-110 <https://dergipark.org.tr/en/pub/isibted/issue/56344/780494>
Chicago Halis, S , Nacak, Ç , Solmaz, H , Yılmaz, E , Yücesu, S . "HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ". Isı Bilimi ve Tekniği Dergisi 38 (2018 ): 99-110
RIS TY - JOUR T1 - HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ AU - Serdar Halis , Çağatay Nacak , Hamit Solmaz , Emre Yılmaz , Serdar Yücesu Y1 - 2018 PY - 2018 N1 - DO - T2 - Isı Bilimi ve Tekniği Dergisi JF - Journal JO - JOR SP - 99 EP - 110 VL - 38 IS - 2 SN - 1300-3615- M3 - UR - Y2 - 2018 ER -
EndNote %0 Isı Bilimi ve Tekniği Dergisi HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ %A Serdar Halis , Çağatay Nacak , Hamit Solmaz , Emre Yılmaz , Serdar Yücesu %T HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ %D 2018 %J Isı Bilimi ve Tekniği Dergisi %P 1300-3615- %V 38 %N 2 %R %U
ISNAD Halis, Serdar , Nacak, Çağatay , Solmaz, Hamit , Yılmaz, Emre , Yücesu, Serdar . "HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ". Isı Bilimi ve Tekniği Dergisi 38 / 2 (October 2018): 99-110 .
AMA Halis S , Nacak Ç , Solmaz H , Yılmaz E , Yücesu S . HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ. Isı Bilimi ve Tekniği Dergisi. 2018; 38(2): 99-110.
Vancouver Halis S , Nacak Ç , Solmaz H , Yılmaz E , Yücesu S . HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ. Isı Bilimi ve Tekniği Dergisi. 2018; 38(2): 99-110.
IEEE S. Halis , Ç. Nacak , H. Solmaz , E. Yılmaz and S. Yücesu , "HCCI BİR MOTORDA OKTAN SAYISININ YANMA KARAKTERİSTİKLERİ VE MOTOR PERFORMANSI ÜZERİNE ETKİLERİNİN İNCELENMESİ", Isı Bilimi ve Tekniği Dergisi, vol. 38, no. 2, pp. 99-110, Oct. 2018