The effect of LPG usage on performance and emissions at various compression ratios in a small engine
Küçük Resim Yok
Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Small engines with single cylinder are usually air cooled and for this reason they have very low compression ratio. In addition, as these engines run on slightly rich fuel-air mixture, their specific fuel consumption and emission values are high. Performance and emission values of these engines can be improved by running them on high octane alternative clean fuels at a higher compression ratio. In this study, a single cylinder engine was run on LPG by increasing its compression ratio from 5:1 to 9:1 and the possibility of improving its performance was investigated experimentally. The results showed that some decreases were seen in the specific fuel consumption and in exhaust emissions without any noticeable power loss when LPG was used instead of gasoline at the standard compression ratio. At the maximum compression ratio, the power of the engine while running on LPG was found to be more than that when running on gasoline by 32 %. At the same time, specific fuel consumption and CO, HC and CO2 emissions were all decreased by 60%, 91%, 23% and 5%, respectively. According to the results obtained, it can be said that usage of LPG at high compression ratio on small engines significantly improves the engine performance and decreases exhaust emissions.
Açıklama
Anahtar Kelimeler
Emissions, Engine performance, LPG, Small engine
Kaynak
Journal of the Faculty of Engineering and Architecture of Gazi University
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
22
Sayı
1
