Second law analysis of a spark ignition engine under high values of ignition retard

ÖZCAN H., Özbey M., Soylemez M. S., Topaloglu B.

INTERNATIONAL JOURNAL OF VEHICLE DESIGN, cilt.58, sa.1, ss.79-92, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 58 Sayı: 1
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1504/ijvd.2012.045924
  • Dergi Adı: INTERNATIONAL JOURNAL OF VEHICLE DESIGN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.79-92
  • Anahtar Kelimeler: exergy, availability, LPG, liquefied petroleum gas, SI engine, IR, ignition retard, cold start combustion, 4-STROKE SI ENGINE, OPERATION
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

The availability analysis of an Spark-Ignition (SI) engine under High Values Ignition Retard (HVIR) was investigated. Liquefied Petroleum Gas (LPG) was used as fuel. The results obtained in this paper may provide guidance to determine the proper ignition retard timing for cold-start emissions control. Results showed that cylinder pressure, availability transfer by heat and availability transfer by work significantly decreased as the spark timing was changed from normal to most retarded timing. Finally, as the spark timing was changed from normal timing to the most retarded timing, the availability transfer due to net exhaust flow and availability destruction due to combustion were significantly increased.