Performance analysis of a spark ignition engine using compressed natural gas (CNG) as fuel

M.M. Tahir, M.S. Ali, M.A. Salim, R.A. Bakar, A.M. Fudhail, M.Z. Hassan, M.S. Abdul Muhaimin

Research output: Contribution to journalArticleAcademicpeer-review

29 Citations (Scopus)
137 Downloads (Pure)

Abstract

Compress natural gas (CNG) is also considered as alternative fuel to produce better emission in a vehicle, but the main disadvantage of CNG in comparison to liquid fuel (gasoline) is the lack of power produced for the same capacity of engine. In this study, the single cylinder spark ignition (SI) engine was selected in order to study the effect CNG into the spark ignition engine. The hydraulic dynamometer was used to study the performance of CNG and liquid fuel. The usage of sensor also applies to the test to extract the data during the ignition stage for liquid fuel and CNG. The heat generated by both types of fuel also had been extracted from the tested engine in order to define which usage of fuel would cause a higher heat transfer to the engine. From this study, the result showed that pressure inside cylinder for CNG is 20% less than gasoline. CNG fuel also produced 23% less heat transfer rate compared to gasoline. The results explained why CNG produced 18.5% lower power compared to liquid fuel (gasoline). So, some improvement needs to be done in order to use CNG as fuel.

Original languageEnglish
Pages (from-to)355-362
Number of pages8
JournalEnergy Procedia
Volume68
DOIs
Publication statusPublished - 1 Apr 2015
Externally publishedYes
Event2nd International Conference on Sustainable Energy Engineering and Application (ICSEEA 2014) - Bandung, Indonesia
Duration: 14 Oct 201416 Oct 2014
Conference number: 2

Keywords

  • CNG
  • Crank angle
  • Engine power
  • Engine speed
  • Heat transfer rate
  • Pressure inside cylinder
  • Singel cylinder engine

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