Shock Tube Ignition Delay Measurements of Decalin/Air Mixtures at High Temperatures

Shock tube is an effective tool to study the reaction dynamic. As a key parameter, the accuracy measurement of ignition delay time depends on the pressure plateau sustained time. Helium is the most frequently used as driver gas in the shock tube related study. To seek a wider scope of driver gas, H 2 was attempted in this paper. The driver capability of H 2 and He was compared by theory analysis and experiment, respectively. In addition, to acquire a longer test time, H 2 / CO 2 as driver gas was adopted to test the tailoring condition. Using a 1-D ideal shock tube assumption, the driver gas tailoring curve is calculated. Results show that the driver capability of H 2 is obviously stronger than that of He gas and H 2 /CO 2 group driver gas performs as well as He/N 2 group driver gas. The pressure plateau sustained time can extend to 11 ms under tailoring condition by H 2 /CO 2 mixture driving. Furthermore, the comparison of H 2 -based and Hebased driver gas models shows no obvious impact on ignition delay measurement. Hence, using H 2 as driver gas is more economic because of its cheaper price than He, and it can reduce the experiment risk because of the relative lower diaphragm burst pressure. However, the adverse result is that the vacuum time turns more than one third longer compared with non-H 2 driving mode.

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Application of H₂ and CO₂ addition in driver section on shock tube ignition delay measurement

Xiong

Tan

Ding

et al. 2019

Asia-Pacific J Chem Eng

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Ignition delay times of decalin over low-to-intermediate temperature ranges: Rapid compression machine measurement and modeling study

Qiu

et al. 2018

Combustion and Flame

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Ignition characteristics of an alternative kerosene from direct coal liquefaction and its blends with conventional RP-3 jet fuel

Yang¹,

Zeng²,

Wang³

et al. 2021

Fuel

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Shock Tube Ignition Delay Measurements of Decalin/Air Mixtures at High Temperatures

Cited by 3 publications

References 0 publications

Application of H₂ and CO₂ addition in driver section on shock tube ignition delay measurement

Application of H₂ and CO₂ addition in driver section on shock tube ignition delay measurement

Ignition delay times of decalin over low-to-intermediate temperature ranges: Rapid compression machine measurement and modeling study

Ignition characteristics of an alternative kerosene from direct coal liquefaction and its blends with conventional RP-3 jet fuel

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Shock Tube Ignition Delay Measurements of Decalin/Air Mixtures at High Temperatures

Cited by 3 publications

References 0 publications

Application of H2 and CO2 addition in driver section on shock tube ignition delay measurement

Application of H2 and CO2 addition in driver section on shock tube ignition delay measurement

Ignition delay times of decalin over low-to-intermediate temperature ranges: Rapid compression machine measurement and modeling study

Ignition characteristics of an alternative kerosene from direct coal liquefaction and its blends with conventional RP-3 jet fuel

Contact Info

Product

Resources

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Application of H₂ and CO₂ addition in driver section on shock tube ignition delay measurement

Application of H₂ and CO₂ addition in driver section on shock tube ignition delay measurement