Effects of polyurethane foam on the detonation propagation in stoichiometric hydrogen-air mixture

Bivol, G. Yu.; Головастов, С. В.

doi:10.1016/j.psep.2019.06.032

Cited by 34 publications

(6 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 2 and Figure 12 show that 5-5, 5-8, and 8-5 have strong shock wave suppression effects. −26.91% 500 mm × 500 mm × 200 mm 21.48% 500 mm × 800 mm × 200 mm (5)(6)(7)(8) 45.27% 800 mm × 300 mm × 200 mm (8-3)…”

Section: Results Of a Single-stage Explosion Chamber Testmentioning

confidence: 99%

“…Fire 2023, 6, x FOR PEER REVIEW 12 of 500 mm × 300 mm × 200 mm (5-3) −26.91% 500 mm × 500 mm × 200 mm 21.48% 500 mm × 800 mm × 200 mm (5)(6)(7)(8) 45.27% 800 mm × 300 mm × 200 mm (8-3) −32.60% 800 mm × 500 mm × 200 mm 28.73% Shock waves are often suppressed at 21.48%, 45.27%, and 28.73% by 500 mm × 50 mm × 200 mm, 500 mm × 800 mm × 200 mm, and 800 mm × 500 mm × 200 mm diffusio chambers, respectively. Other-sized diffusion chambers also strengthen the shock wav Utilizing a diffusion chamber that measures 500 mm × 500 mm × 200 mm by the size spe ifications of civil air defense engineering design is advised.…”

Section: Results Of a Single-stage Explosion Chamber Testmentioning

confidence: 99%

“…According to the construction and support specifications, the explosion chamber's length and breadth should not exceed four times the roadway's diameter. As a result, the length, width, and height of this experiment were custom-made for explosion chambers in the following sizes: 300 mm × 300 mm × 200 mm (3-3), 300 mm × 500 mm × 200 mm (3-5), 300 mm × 800 mm × 200 mm (3)(4)(5)(6)(7)(8), 500 mm × 300 mm × 200 mm (5-3), 500 mm × 500 mm × 200 mm (5-5), 800 mm × 300 mm × 200 mm (8-3), 800 mm × 500 mm × 200 mm , and eight other sizes. To increase the viability of the numerical simulations, experimental investigations were used to validate them, and based on these studies, more research was conducted.…”

Section: Test Systems 221 Program For Testing Straight Tubes and Sing...mentioning

confidence: 99%

“…Iqbal et al's [7] experimental investigation of the mechanical behavior of polyurea-sprayed masonry walls under blast loads revealed that energy absorption improves with coating thickness and that polyurea composites with a thickness of 6 mm can tolerate higher pressures. By conducting this experiment, Grigory Bivol et al [8] investigated the suppressing impact of polyurethane foam with various pore sizes on blast waves.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Studying the Effects of Wave Dissipation Structure and Multiple Size Diffusion Chambers on Explosion Shock Wave Propagation

Liu,

Xu,

et al. 2023

Fire

View full text Add to dashboard Cite

Explosion chambers are crucial to the technology used to prevent coal mine gas explosions. Investigating the shock wave propagation law at various coal mine tunnel cross-sections helps ensure mine safety. A self-built, highly explosive experimental setup was used to conduct empirical research on straight tubes, eight sizes of single-stage explosion chambers, and multi-stage tandem explosion chambers. Ansys Fluent numerical simulation software constructed five different tandem explosion chamber models. The wave dissipation efficiency of various types of explosion chambers was calculated, the propagation law and process of shock waves across multiple explosion chambers were examined, and the best size and type of explosion chambers were summarized to increase the wave dissipation efficiency of single-stage explosion chambers. Gun silencers inspired these models. The findings indicate that the three-stage tandem explosion chamber is the best diffusion tandem combination form, the 60° silencer-type explosion chamber is the best single-stage explosion chamber modification program, and the 500 mm × 500 mm × 200 mm explosion chamber is the best single-stage explosion chamber.

show abstract

Section: Results Of a Single-stage Explosion Chamber Testmentioning

confidence: 99%

Section: Results Of a Single-stage Explosion Chamber Testmentioning

confidence: 99%

Section: Test Systems 221 Program For Testing Straight Tubes and Sing...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Studying the Effects of Wave Dissipation Structure and Multiple Size Diffusion Chambers on Explosion Shock Wave Propagation

Liu,

Xu,

et al. 2023

Fire

View full text Add to dashboard Cite

show abstract

“…As the main function of parallel narrow channels, flame quenching has been investigated by scholars at home and abroad in recent years. Some scholars 1–4 found that the effect of parallel narrow channels on the propagation of flame and shock waves was significant. Jin et al 5 investigated the quenching behavior of hydrogen‐air flame under the action of wire mesh in a closed pipe.…”

Section: Introductionmentioning

confidence: 99%

Investigation on quenching characteristics of parallel narrow channels for deflagration flames

Guo

Wang

et al. 2023

Fire and Materials

View full text Add to dashboard Cite

A set of experimental equipment for quenching the deflagration flame in linked vessels with parallel narrow channels was proposed. The quenching effects of the deflagration flame in the linked vessels were investigated, the influence law and mechanism of parallel narrow channels on the deflagration flame was analyzed. The results showed that the Pmax and the (dP/dt)max at each position were both lower than without parallel narrow channels, which indicated that the propagation of flame was inhibited by parallel narrow channels effectively, and the explosion intensity was also reduced. The pressure oscillation phenomenon inside the linked vessels disappeared due to the inclusion of parallel narrow channels. The deflagration flame was successfully quenched when the channel gaps were 0.5, 1.5, and 3 mm, but failed to be quenched when the channel gap was 6 mm. The quenching distance and the average propagation velocity of the deflagration flame in parallel narrow channels increased with the increase of the channel gap. When the channel gap was 6 mm, the deflagration flame completely passed through parallel narrow channels, and the average propagation velocity of deflagration flame was significantly greater than that when the deflagration flame was successfully quenched.

show abstract

Flame Front Dynamics in Flow of Hydrogen-Air Mixture in a Channel with Sudden Expansion and Polyurethane Foam

Golovastov,

Bivol,

Kuleshov

et al. 2023

Flow Turbulence Combust

View full text Add to dashboard Cite

Effects of polyurethane foam on the detonation propagation in stoichiometric hydrogen-air mixture

Cited by 34 publications

References 32 publications

Studying the Effects of Wave Dissipation Structure and Multiple Size Diffusion Chambers on Explosion Shock Wave Propagation

Studying the Effects of Wave Dissipation Structure and Multiple Size Diffusion Chambers on Explosion Shock Wave Propagation

Investigation on quenching characteristics of parallel narrow channels for deflagration flames

Flame Front Dynamics in Flow of Hydrogen-Air Mixture in a Channel with Sudden Expansion and Polyurethane Foam

Contact Info

Product

Resources

About