Enhancement of Performance Characteristic of “M15GS” Engine with Matching Suitable Turbocharger

Nikoumanzari, Mehdi | 2020

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 53060 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Saeedi, Mohammad Hassan
  7. Abstract:
  8. Duo to the strictly pollution legislation in the last decade and increasing demand of lightweight internal combustion engines with rated power , turbocharging of the spark ignition engines become more interested. Therefore the turbocharging of M15GS engine was studied in both gasoline and natural gas fuels with purpose of enhancement of performance characteristic of engine. According to this approach 0-D turbocharger matching performed for gasoline and natural gas fueled M15GS engine. Also an innovative 1-D turbocharger matching performed for gasoline fueled engine. Then engine equipped with SJ50 turbocharger and dynamometer and combustion development tests performed on gasoline fueled engine in full load condition and dynamometer tests performed on natural gas fueled engine in part load situation. The results indicated that turbocharging of M15GS engine performed correctly and the target performance characteristics achieved with both fuels. Also observed that the BSFC of the turbocharged engine is significantly higher than naturally aspirated engine. an engine model was developed in GT-Power software with predictive an non-predictive methods. In engine speeds lower than 4500 rpm the simulation results is well matched with experimental results. Also scavenge process in valve overlap duration was studied with model developed in GT-Power software
  9. Keywords:
  10. Turbochargers ; Turbocharging ; Turbocharger Matching ; GT-Power Software ; Internal Combustion Engines ; Gas Fuelled Engine ; M15GS Engine

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