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Abstract：
Effects of the hydrogen blending ratio, equivalence ratio and compressed pressure on the ignition delay time of DME/H2/O2/N2 mixture are investigated using a rapid compression machine (RCM) at compressed temperature of 650~830 K, compressed pressure of 1.94~2.45 MPa, equivalence ratio of 0.83~1.25 and nitrogen dilution ratio of 89.74% in this study. Kinetics model was built to predict the ignition delay time and simulate the combustion process. The results show that: with the increasing hydrogen blending ratio, there is only little change about the first stage ignition delay time of DME/H2/O2/N2 mixture, and the total ignition delay time extends; with the increasing equivalence ratio and compressed pressure, the first stage ignition delay time of the DME/H2/O2/N2 mixture only has little change, and the total ignition delay time shortens. © 2016, Science Press. All right reserved.
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Journal of Engineering Thermophysics
ISSN： 0253-231X
Year： 2016
Issue： 6
Volume： 37
Page： 1345-1353
ESI Discipline： PHYSICS;
ESI HC Threshold：175
CAS Journal Grade：4
Cited Count：
WoS CC Cited Count： 0
SCOPUS Cited Count：
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
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30 Days PV： 7
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