Solubility measurement and simulated calculation of Nitrogen in HFC-227ea

Abstract

Abstract: In order to study the solubility of nitrogen in HFC-227ea, the solubility at different temperatures and pressures was measured by pressure-volume-temperature(PVT) apparatus. Then systematically discussed the effects of temperature and pressure on the solubility and Henry coefficient. Finally, based on the experimental data, the solubility model of nitrogen in HFC-227ea was established. The research shows that increasing temperature is benefit for N2 dissolution and the N2 solubility will increase with the pressure reducing in HFC-227ea. The fitting effect of nitrogen dissolution model in sevofluoropropane is better, and the maximum deviation is less than 3%.

Key words: nitrogen, HFC-227ea, solubility, extinguishant

XIAN Xue-lei, ZHANG Jun-na, ZHAO Qing-song, LIU Lian-xi, DONG Hai-bin, SHENG Yan-feng, MA Jian-qin. Solubility measurement and simulated calculation of Nitrogen in HFC-227ea[J]. Fire Science and Technology, 2020, 39(2): 250-253.

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Solubility measurement and simulated calculation of Nitrogen in HFC-227ea

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