Jet fuel is widely used in air transportation, and sometimes for special vehicles in ground transportation. In the latter case, fuel spray auto-ignition behavior is an important index for engine operation reliability. Surrogate fuel is usually used for fundamental combustion study due to the complex composition of practical fuels. As for jet fuels, two-component or three-component surrogate is usually selected to emulate practical fuels. The spray auto-ignition characteristics of RP-3 jet fuel and its three surrogates, the 70% mol n-decane/30% mol 1,2,4-trimethylbenzene blend (Surrogate 1), the 51% mol n-decane/49% mol 1, 2, 4-trimethylbenzene blend (Surrogate 2), and the 49.8% mol n-dodecane/21.6% mol iso-cetane/28.6% mol toluene blend (Surrogate 3) were studied in a heated constant volume combustion chamber. Surrogate 1 and Surrogate 2 possess the same components, but their blending percentages are different, as the two surrogates were designed to capture the H/C ratio (Surrogate 1) and DCN (Surrogate 2) of RP-3 jet fuel, respectively. Surrogate 3 could emulate more physiochemical properties of RP-3 jet fuel, including molecular weight, H/C ratio and DCN. Experimental results indicate that Surrogate 1 overestimates the auto-ignition propensity of RP-3 jet fuel, whereas Surrogates 2 and 3 show quite similar auto-ignition propensity with RP-3 jet fuel. Therefore, to capture the spray auto-ignition behaviors, DCN is the most important parameter to match when designing the surrogate formulation. However, as the ambient temperature changes, the surrogates matching DCN may still show some differences from the RP-3 jet fuel, e.g., the first-stage heat release influenced by low-temperature chemistry.
. [J]. Frontiers in Energy, 2021, 15(2): 396-404.
Yaozong DUAN, Wang LIU, Zhen HUANG, Dong HAN. An experimental study on spray auto-ignition of RP-3 jet fuel and its surrogates. Front. Energy, 2021, 15(2): 396-404.
P Dagaut, M Cathonnet. The ignition, oxidation, and combustion of kerosene: a review of experimental and kinetic modeling. Progress in Energy and Combustion Science, 2006, 32(1): 48–92 https://doi.org/10.1016/j.pecs.2005.10.003
2
W Liu, J Q Zhai, B Y Lin, et al. Soot size distribution in lightly sooting premixed flames of benzene and toluene. Frontiers in Energy, 2020, 14(1): 18–26 https://doi.org/10.1007/s11708-020-0663-6
3
X Li, W Z Zhang, Z Huang, et al. Pre-chamber turbulent jet ignition of methane/air mixtures with multiple orifices in a large bore constant volume chamber: effect of air-fuel equivalence ratio and pre-mixed pressure. Frontiers in Energy, 2019, 13(3): 483–493 https://doi.org/10.1007/s11708-019-0631-1
4
D Kang, V Kalaskar, D Kim, et al. Experimental study of autoignition characteristics of jet-A surrogates and their validation in a motored engine and a constant-volume combustion chamber. Fuel, 2016, 184(15): 565–580 https://doi.org/10.1016/j.fuel.2016.07.009
5
W Liu, J B Zhang, Z Huang, et al. Applicability of high dimensional model representation correlations for ignition delay times of n-heptane/air mixtures. Frontiers in Energy, 2019, 13(2): 367–376 https://doi.org/10.1007/s11708-018-0584-9
6
Z H Gao, E J Hu, Z H Xu, et al. Effect of 2,5-dimethylfuran addition on ignition delay times of n-heptane at high temperatures. Frontiers in Energy, 2019, 13(3): 464–473 https://doi.org/10.1007/s11708-019-0609-z
7
A J Dean, O G Penyazkov, K L Sevruk, et al. Autoignition of surrogate fuels at elevated temperatures and pressures. Proceedings of the Combustion Institute, 2007, 31(2): 2481–2488 https://doi.org/10.1016/j.proci.2006.07.162
8
P Dagaut, A El Bakali, A Ristori. The combustion of kerosene: experimental results and kinetic modelling using 1- to 3-component surrogate model fuels. Fuel, 2006, 85(7–8): 944–956 https://doi.org/10.1016/j.fuel.2005.10.008
9
G Mairinger, A Frassoldati, A Cuoci, et al. Experimental and computational investigation of autoignition of jet fuels and surrogates in nonpremixed flows at elevated pressures. Proceedings of the Combustion Institute, 2019, 37(2): 1605–1614 https://doi.org/10.1016/j.proci.2018.06.224
T Malewicki, S Gudiyella, K Brezinsky. Experimental and modeling study on the oxidation of jet A and the n-dodecane/iso-octane/n-propylbenzene/1,3,5-trimethylbenzene surrogate fuel. Combustion and Flame, 2013, 160(1): 17–30 https://doi.org/10.1016/j.combustflame.2012.09.013
12
W B Yu, W M Yang, K L Tay, et al. An optimization method for formulating model-based jet fuel surrogate by emulating physical, gas phase chemical properties and threshold sooting index (TSI) of real jet fuel under engine relevant conditions. Combustion and Flame, 2018, 193: 192–217 https://doi.org/10.1016/j.combustflame.2018.03.024
13
Y B Mao, L Yu, Z Y Wu, et al. Experimental and kinetic modeling study of ignition characteristics of RP-3 kerosene over low-to-high temperature ranges in a heated rapid compression machine and a heated shock tube. Combustion and Flame, 2019, 203: 157–169 https://doi.org/10.1016/j.combustflame.2019.02.015
14
C Zhang, X Hui, Y Z Lin, et al. Recent development in studies of alternative jet fuel combustion: progress, challenges, and opportunities. Renewable & Sustainable Energy Reviews, 2016, 54: 120–138 https://doi.org/10.1016/j.rser.2015.09.056
15
C H Zhang, B Li, F Rao, et al. A shock tube study of the autoignition characteristics of RP-3 jet fuel. Proceedings of the Combustion Institute, 2015, 35(3): 3151–3158 https://doi.org/10.1016/j.proci.2014.05.017
16
Y W Yan, Y C Liu, W Fang, et al. A simplified chemical reaction mechanism for two-component RP-3 kerosene surrogate fuel and its verification. Fuel, 2018, 227: 127–134 https://doi.org/10.1016/j.fuel.2018.04.092
J Q Xu, J J Guo, A K Liu, et al. Construction of autoignition mechanisms for the combustion of RP-3: surrogate fuel and kinetics simulation. Acta Physico-Chimica Sinica, 2015, 31(4): 643–652 (in Chinese) https://doi.org/10.3866/PKU.WHXB201503022
19
J Yu, X L Gou. Comprehensive surrogate for emulating physical and kinetic properties of jet fuels. Journal of Propulsion and Power, 2018, 34(3): 679–689 https://doi.org/10.2514/1.B36766
20
D Zheng, W M Yu, B J Zhong, et al. RP-3 aviation kerosene surrogate fuel and the chemical reaction kinetic model. Acta Physico-Chimica Sinica, 2015, 31(4): 636–642 (in Chinese) https://doi.org/10.3866/PKU.WHXB201501231
21
R Yi, X Chen, C P Chen. Surrogate for emulating physicochemical and kinetics characteristics of RP-3 aviation fuel. Energy & Fuels, 2019, 33(4): 2872–2879 https://doi.org/10.1021/acs.energyfuels.8b03999
22
X Liang, A H Zhong, Z Y Sun, et al. Autoignition of n-heptane and butanol isomers blends in a constant volume combustion chamber. Fuel, 2019, 254(15): 115638 https://doi.org/10.1016/j.fuel.2019.115638
23
D Han, J Q Zhai, Z Huang. Autoignition of n-hexane, cyclohexane and methylcyclohexane in a constant volume combustion chamber. Energy & Fuels, 2019, 33(4): 3576–3583 https://doi.org/10.1021/acs.energyfuels.9b00003
24
D Han, Y Z Duan, J Q Zhai. Autoignition comparison of n-dodecane/benzene and n-dodecane/toluene blends in a constant volume combustion chamber. Energy & Fuels, 2019, 33(6): 5647–5654 https://doi.org/10.1021/acs.energyfuels.9b00451
25
Design Institute for Physical Properties. D IPPR Project 801, Full Version. Sponsored by AICHE, 2012
26
ASTM International. ASTM D7668–14 standard test method for determination of derived cetane number (DCN) of diesel fuel oils ignition delay using a constant volume combustion chamber method. ASTM International: West Conshohocken, PA, 2014
27
H M Poon, K M Pang, H K Ng, et al. Development of multi-component diesel surrogate fuel models – Part II: validation of the integrated mechanisms in 0-D kinetic and 2-D CFD spray combustion simulations. Fuel, 2016, 181: 120–130 https://doi.org/10.1016/j.fuel.2016.04.114
28
G Woschni. A universally applicable equation for the instantaneous heat transfer coefficient in the internal combustion engine. SAE Technical Paper, 1967 https://doi.org/10.4271/670931
29
J K Shao, R Choudhary, Y Z Peng, et al. A shock tube study of n-heptane, iso-octane, n-dodecane and iso-octane/n-dodecane blends oxidation at elevated pressures and intermediate temperatures. Fuel, 2019, 243: 541–553 https://doi.org/10.1016/j.fuel.2019.01.152
30
O R Yehia, C B Reuter, Y G Ju. On the chemical characteristics and dynamics of n-alkane low-temperature multistage diffusion flames. Proceedings of the Combustion Institute, 2019, 37(2): 1717–1724 https://doi.org/10.1016/j.proci.2018.06.161
31
Z L Zheng, T Badawy, N Henein, et al. Investigation of physical and chemical delay periods of different fuels in the ignition quality tester. Journal of Engineering for Gas Turbines and Power, 2013, 135(6): 061501 https://doi.org/10.1115/1.4023607
32
D N Assanis, Z S Filipi, S B Fiveland, et al. A predictive ignition delay correlation under steady-state and transient operation of a direct injection diesel engine. Journal of Engineering for Gas Turbines and Power, 2003, 125(2): 450–457 https://doi.org/10.1115/1.1563238
