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Simulation Of Hydrogen Dispersion In Semi-Confined Environments

A subsonic horizontal hydrogen jet experiment and subsequent CFD simulation was reported by Swain Invalid BibTex Entry! (Fig. 1 and Table 1). Hydrogen was released at 25 scf/min through a 1 cm diameter orifice. The predicted concentrations showed good agreement with measurements.

Fig. 1: Concentration contour of a 25 scf/min release. The numbers show locations where the concentration of hydrogen was measured experimentally

Table 1: Comparison between experimental and simulated H2 conc.

Sensor position Experimental H2 conc. (%) Simulation H2 conc. (%) Deviation (%)
1 5.0-5.9 5.04 -8.13
2 5.6-7.0 6.96 10.48
3 9.4-10.8 13.99 38.50
4 8.1-9.4 8.25 -5.70
5 5.6-6.6 5.29 -13
6 3.5-4.6 5.37 32.60

References

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