Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis of performance and combustion characteristics of D.O./butanol blended fuels in a diesel engine

디젤기관에서 경유/부탄올 혼합연료의 기관성능 및 연소특성 해석

  • Received : 2019.10.14
  • Accepted : 2019.11.07
  • Published : 2019.11.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, to investigate the effect of physical and chemical properties of butanol on the engine performance and combustion characteristics, the coefficient of variations of IMEP (indicated mean effective pressure) and fuel conversion efficiency were obtained by measuring the combustion pressure and the fuel consumption quantity according to the engine load and the mixing ratio of diesel oil and butanol. In addition, the combustion pressure was analyzed to obtain the pressure increasing rate and heat release rate, and then the combustion temperature was calculated using a single zone combustion model. The experimental and analysis results of butanol blending oil were compared with the those of diesel oil under the similar operation conditions to determine the performance of the engine and combustion characteristics. As a result, the combustion stabilities of D.O. and butanol blending oil were good in this experimental range, and the indicated fuel conversion efficiency of butanol blending oil was slightly higher at low load but that of D.O. was higher above medium load. The premixed combustion period of D.O. was almost constant regardless of the load. As the load was lower and the butanol blending ratio was higher, the premixed combustion period of butanol blending oil was longer and the premixed combustion period was almost constant at high load regardless of butanol blending ratio. The average heat release rate was higher with increasing loads; especially as butanol blending ratio was increased at high load, the average heat release rate of butanol blending oil was higher than that of D.O. In addition, the calculated maximum. combustion temperature of butanol blending oil was higher than that of D.O. at all loads.

Keywords

References

  1. Choi BC. 2016. Combustion engineering. Munundang, Seoul, 125, 146.
  2. J. B. Heywood. 1988. Internal combustion engine fundamentals. McGraw-Hill, New York, U.S.A., 417, 509-511.
  3. J. I. Romas. 1989. Internal combustion engine modeling. Hemisphere Publishing Corporation, New York, U.S.A., 98-100.
  4. Jeong TS, Wang WG and Kim SA. 2017. An experimental study on the injection and spray characteristics of butanol. J Korean Soc Fish Technol 53, 89-97. (DOI:10.3796/KSFT.2017.53.1.089).
  5. Jiang XL, Choi BC, Lee CH and Lee CH. 2014. Particulate matter exhaust emission characteristics of CRDI diesel engine with butanol-diesel blended fuel. KSAE 2014 Conference Proceeding, 249-250.
  6. Kim DH. 2010. The status and outlook for biobutanol technology. Auto Journal_2010.8, 36-44.
  7. Kim HM. 2018. Autoignition phenomena of a single diesel/1-butanol mixture droplet. JILASSKR 23, 90-95. (DOI:10.15435/JILASSKR.2018.23.2.90).
  8. Kim HS, Jang YG, Lee SH, Kim TY, Kang KY and Yoon JK. 2014. A feasibility study of using diesel/biodieselpyrolysis oil-butanol blends in a diesel engine. Transactions of KSAE 22, 116-125. (DOI:10.7467/KSAE.2014.22.5.116).
  9. Lee SH, Kang KY, Kim MJ and Lim JH. 2017. Performance and emission characteristics of an IDI diesel generator fueled with wood pyrolysis oil / butanol blended fuels. KSAE 25, 380-388. (DOI:10.7467/KSAE. 2017.25.3.380).
  10. Oh CH, Kang KJ and Choi GM. 2017. Effects of fuel blending ratio and oxygen concentration on auto-ignition characteristics of n-decane/ethanol blended fuels. KSME-B 41, 749-757. (DOI:10.3795/KSME-B.2017.41.11.749).
  11. Technical paper. 2008. Basic principles of ship propulsion. MAN Marine Engines & Systems, Copenhagen, Denmark, 20.
  12. Yun HT, Choi KB and Lee CS. 2015. Effect of pilot injection on combustion and emission characteristics in a direct injection diesel engine fueled with biobutanol blended diesel fuels. KSAE 2015 Conference Proceeding, 205-208.