Journal of Jilin University(Engineering and Technology Edition) ›› 2022, Vol. 52 ›› Issue (3): 533-540.doi: 10.13229/j.cnki.jdxbgxb20210334

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RP⁃3 jet fuel lubricity and improvement measurements

Tong-bin ZHAO1(),Yi-sheng WU2,Yao-zong DUAN1,Zhen HUANG1,Dong HAN1,2()   

  1. 1.Key Laboratory for Power Machinery and Engineering，Ministry of Education，Shanghai Jiao Tong University，Shanghai 200240，China
    2.China-UK Low Carbon College，Shanghai Jiao Tong University，Shanghai 201306，China
  • Received:2021-04-15 Online:2022-03-01 Published:2022-03-08
  • Contact: Dong HAN E-mail:zhaotongbin@sjtu.edu.cn;dong_han@sjtu.edu.cn

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Abstract:

The effects of fuel temperature， working load and wearing time on the lubrication performance of RP-3 jet fuel were studied on a high-frequency reciprocating rig. Further， different lubricity additives were used to improve the lubrication performance of RP-3 jet fuel. It is revealed that RP-3 jet fuel produces larger wear scar diameter than diesel fuel， and increasing working load and wearing time elevate the wear scar diameter. Increasing fuel temperature slightly reduces wear scar diameter， possibly because of the increased generation of anti-wearing products. Lubricity additives can dramatically enhance RP-3 jet fuel lubrication performance， but the improvement effects are not monotonic with the addition fraction. As the addition fraction exceeds a certain value， the lubrication performance of RP-3 jet fuel does not obviously change with further addition of lubricity additives.

Key words: energy and power engineering, RP-3 jet fuel, diesel, lubricity, lubricity additives

CLC Number: 

  • TK427

Table 1

Physical and chemical properties oftwo test fuels and biodiesel"

理化参数柴油RP-3航空煤油

生物

柴油

运动黏度/（mm2·s-1）@40 oC2.481.28（20 oC）4.70
密度/（g·ml-1）@40 oC0.830.780.88
表面张力/（10-3 N·m-1）@20 oC27.5023.60-
含硫量/%0.500.30<0.01

Table 2

Experimental parameters underSH/T 0765—2005 standard"

参数数值
冲程/mm1.0
频率/Hz50
液体温度/℃60
应用载荷/g200
试验时间/min75

Fig.1

Comparison of the mean wear scar diameterof RP-3 jet fuel and commercial dieselunder different test conditions"

Fig.2

Comparison of the oil film thickness of RP-3 jet fuel and diesel under the standard condition"

Fig.3

Comparison of oil film thickness of RP-3jet fuel under different conditions"

Fig.4

Mean wear scar diameter of RP-3 jet fuelwith and without lubrication improver"

Fig.5

Oil film thickness development of RP-3 jet fuel with different lubrication improver"

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