Experimental study on gas mixing and transport induced by external cooling on large-scale facility

Li, Y.; Tong, Lili; Cao, Xinde

doi:10.1016/j.anucene.2021.108411

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…In order to give the specific expression, an experimental work conducted by SJTU 36 is used to build the correlation. The detailed information of the experiment is given in Section 3.1 and the better fitting results are shown in Figure 1.…”

Section: Modification Of Hydrogen Distribution Modelmentioning

confidence: 99%

Analytical investigation of hydrogen distribution with steam condensation in confined vessel

Jiang

Tong

et al. 2022

Intl J of Energy Research

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Summary A one‐dimensional model was developed to predict the hydrogen distribution in a confined vessel with steam condensation. The model consists of two parts, one for the calculation of buoyant jet motion characteristics and the other for the hydrogen volume fraction prediction. First, a set of partial differential equations that can calculate the velocity, characteristic length, and condensation volume fraction at different heights of the jet centerline was established to represent the effect of buoyant jet and steam condensation on hydrogen distribution. Subsequently, the hydrogen distribution model based on buoyancy and Froude number was modified by introducing Reynolds number and condensation volume fraction, and expression of dimensionless buoyancy η was obtained by fitting with Shanghai Jiao Tong University (SJTU) gas mixtures injection experiment. Velocity data obtained from the steam injection test conducted by NASA was used to verify the first part, and the relative error of axis velocity is less than ±20%. SJTU experimental data and TOSQAN experimental data were used to verify the proposed model, the calculated volume fraction is in good agreement with experimental data with the maximum error of less than ±30%, which means that the model can be used to predict the hydrogen distribution in the containment above the break location with the condition of steam condensation.

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Section: Modification Of Hydrogen Distribution Modelmentioning

confidence: 99%