Auto-ignition of biomass synthesis gas in shock tube at elevated temperature and pressure

Ouyang, Linqi; Li, Hua; Sun, Shuzhou; Wang, Xiaole; Lü, Xingcai

doi:10.1007/s11434-015-0935-4

Cited by 9 publications

(4 citation statements)

References 45 publications

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“…Hence, the most representative values should be individuated by carefully evaluating the investigated scenarios. To this aim, sensitivity analysis and reaction path analysis are commonly adopted [151,152]. Considering the generic nature and the theoretical background of the approach, it can be adopted for cryogenic applications, as well, allowing for the reproduction of accidental scenarios.…”

Section: Reactive Liquid-vapor Systemsmentioning

confidence: 99%

Accidental Combustion Phenomena at Cryogenic Conditions

Pio¹,

Salzano²

2021

Safety

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The presented state of the art can be intended as an overview of the current understandings and the remaining challenges on the phenomenological aspects involving systems operating at ultra-low temperature, which typically characterize the cryogenic fuels, i.e., liquefied natural gas and liquefied hydrogen. To this aim, thermodynamic, kinetic, and technological aspects were included and integrated. Either experimental or numerical techniques currently available for the evaluation of safety parameters and the overall reactivity of systems at cryogenic temperatures were discussed. The main advantages and disadvantages of different alternatives were compared. Theoretical background and suitable models were reported given possible implementation to the analyzed conditions. Attention was paid to models describing peculiar phenomena mainly relevant at cryogenic temperatures (e.g., para-to-ortho transformation and thermal stratification in case of accidental release) as well as critical aspects involving standard phenomena (e.g., ultra-low temperature combustion and evaporation rate).

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Section: Reactive Liquid-vapor Systemsmentioning

confidence: 99%

Accidental Combustion Phenomena at Cryogenic Conditions

Pio¹,

Salzano²

2021

Safety

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“…Finally, it is worth mentioning that most syngas-type mixtures studied so far in the literature are much less complex, typically limited to all or part of the following components: CO, CO 2 , H 2 , CH 4 , and N 2 , − − with some other impurities in a very small number of studies. − The study of each of these typical syngas mixtures was also conducted in a limited set of conditions and experimental devices. Thus, the additional complexity of the mixture defined in Table and the fact that the combustion properties of this mixture were studied experimentally through global kinetics data measurements with fuel/air mixtures (ignition delay time in a shock tube, laminar flame speed in a closed vessel) and via more fundamental experiments (H 2 O laser absorption spectroscopy in dilute conditions) provide great validation targets for future model development.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Combustion Properties of an Average Thermal Runaway Gas Mixture from Li-Ion Batteries

et al. 2022

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To assess the fire hazard associated with venting gases coming from a lithium-ion battery during a thermal runaway, a mixture representative of such venting gas was determined by averaging 40 gas compositions presented in the literature. The final mixture is composed of C 3 H 8 , C 2 H 6 , C 2 H 4 , CH 4 , H 2 , CO, and CO 2 . The combustion properties of this mixture were determined using various combustion devices: shock tubes for ignition delay time measurements in air and for H 2 O time histories in very dilute mixtures (99% Ar), as well as a closed bomb to measure the laminar flame speeds. Experiments were performed at around atmospheric pressure and for several equivalence ratios in all cases. Several detailed kinetics models from the literature were assessed against the data generated with this very complex mixture, and it was found that modern detailed kinetics mechanisms were capable of appropriately predicting the combustion properties of thermal runaway gases from a battery in most cases, with the NUIGMech 1.1 model being the most accurate. A numerical analysis was conducted with the two most modern models to explain the results and highlight the most important reactions.

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“…Ignition delay time of hydrocarbon fuels is a vital parameter for chemistry dynamic study. As an effective ignition delay measurement apparatus, shock tube plays an important role in thermal chemistry research, as it can supply a controllable pressure and temperature reaction environment .…”

Section: Introductionmentioning

confidence: 99%

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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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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Auto-ignition of biomass synthesis gas in shock tube at elevated temperature and pressure

Cited by 9 publications

References 45 publications

Accidental Combustion Phenomena at Cryogenic Conditions

Accidental Combustion Phenomena at Cryogenic Conditions

Experimental Investigation of the Combustion Properties of an Average Thermal Runaway Gas Mixture from Li-Ion Batteries

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

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Auto-ignition of biomass synthesis gas in shock tube at elevated temperature and pressure

Cited by 9 publications

References 45 publications

Accidental Combustion Phenomena at Cryogenic Conditions

Accidental Combustion Phenomena at Cryogenic Conditions

Experimental Investigation of the Combustion Properties of an Average Thermal Runaway Gas Mixture from Li-Ion Batteries

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

Contact Info

Product

Resources

About

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