Welcome to Biomass Chemical Engineering,

Biomass Chemical Engineering ›› 2019, Vol. 53 ›› Issue (6): 15-21.doi: 10.3969/j.issn.1673-5854.2019.06.003

• Research Report • Previous Articles     Next Articles

Comparative Study on Applicability of Bio Aviation Kerosene for Piston Aero Engine and RP-3 Fuel

Fei YANG1(),Wei CHEN1,Chen ZHANG1,Gang LUO1,*(),Junming XU2,Fanglin LI2   

  1. 1. Aero-engine Thermal Environment and Structure Key Laboratory of Ministry of Industry and Information Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
    2. Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China
  • Received:2018-10-16 Online:2019-11-30 Published:2019-12-10
  • Contact: Gang LUO E-mail:390557609@qq.com;mevislab@nuaa.edu.cn
  • Supported by:
    国家自然科学基金资助项目(31770612)

Abstract:

Bio aviation kerosene was prepared from soybean oil by catalytic cracking, distillation, aromatization and hydrogenation, and its composition and physicochemical properties were analyzed. A piston aero-engine was used to start the bench test, and the applicabilities of bio aviation kerosene and RP-3 fuel were compared and analyzed. The results showed that the basic components of bio aviation kerosene were straight-chain alkanes 74.54%, naphthenes 13.04%, aromatic hydrocarbons 10.31%, ethers 1.07% and non-alpha-chain olefins 1.04%. The calorific value of bio aviation kerosene was high(44.4 MJ/kg), freezing point was low(-48 ℃), but its viscosity was high(2.11 mm2/s). Compared with RP-3 fuel, bio aviation kerosene had lower start-up temperature; temperature rise rate(within 4 ℃ difference), fuel consumption(less than 0.02 g/s difference) were close to those of RP-3 fuel, the excess air coefficient fluctuated greatly(0.8-1.2) when engine speed exceeded 4 200 r/min, and those of combustion state deteriorated; engine disassembly inspection after bench test showed that coking occured after burning bio aviation kerosene. The phenomenon of carbon deposition was due to the high viscosity(>2 mm2/s) of bio aviation kerosene in this batch, which had an impact on the working performance of engines such as atomization efficiency and combustion adequacy.

Key words: bio aviation kerosene, piston engine, bench testing, excess air factor, coking

CLC Number: